October 2006 Rev 7 1/94
1
M29DW128F
128 Mbit (16Mb x8 or 8Mb x16, Multiple Bank, Page, Boot Block)
3V supply Flash memory
Feature summary
■Supply voltage
–V
CC = 2.7V to 3.6V for Prog r am, Er ase and
Read
–V
PP =12V for Fast Program (optional)
■Asynchronous Random/Page Read
– Page width: 8 Words
– Page access: 25, 30ns
– Random access: 60, 70ns
■Programming time
– 10µs per Byte/Word typical
– 4 Words / 8 Bytes Program
– 32-Word Write Buffer
■Erase Verify
■Memory blocks
– Quadruple Bank Memory Array:
16Mbit+48Mbit+48Mbit+16Mbit
– Parameter Blocks (at Top and Bottom)
■Dual Operation
– While Progr am or Er ase in one bank, Re ad
in any of the other banks
■Program/Erase Suspend and Resume modes
– Read from any Block during Pro gram
Suspend
– Read and Program anot he r Block during
Erase Suspend
■Unlock Bypass Program
– Faster Production/Batch Programming
■Common Flash Interface
– 64 bit Security Code
■100,000 Program/Erase cycles per block
■Low power cons ump tion
– Standby and Automatic St andby
■Hardware Block Protection
–V
PP/WP Pin for fast program and write
protect of the four outermost parameter
blocks
■Security features
– Standard Protection
– Password Protection
■Extended Memory Block
– Extra block used as security block or to
store additional inf ormation
■Electronic Signature
– Manufacturer Code: 0020h
– Device Code: 227Eh + 2220h + 2200h
■ECOPACK® packages available
BGA
TSOP56 (NF)
14 x 20mm
TBGA64 (ZA)
10 x 13mm
www.st.com
Contents M29DW128F
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Contents
1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 Address Inputs (A0-A22) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Data Inputs/Outputs (DQ0-DQ7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Data Inputs/Outputs (DQ8-DQ14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 Data Input/Output or Address Input (DQ15A–1) . . . . . . . . . . . . . . . . . . . 14
2.5 Chip Enable (E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Output Enable (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7 Write Enable (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8 VPP/Write Protect (VPP/WP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9 Reset/Block Temporary Unprotect (RP) . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.10 Ready/Busy Output (RB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11 Byte/Word Organization Select (BYTE) . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12 VCC supply voltage (2.7V to 3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 VSS Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3 Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 Bus Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Bus Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Output Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5 Automatic Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6 Special Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.1 Read Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.2 Verify Extended Block Protection Indicator . . . . . . . . . . . . . . . . . . . . . . 19
3.6.3 Verify Block Protection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.4 Hardware Block Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.5 Temporary Unprotect of high voltage Protected Blocks . . . . . . . . . . . . . 20
4 Har dware Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1 Write Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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4.2 Temporary Block Unprotect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5 Software Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1 Standard Protection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1.1 Block Lock/Unlock Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1.2 Non-Volatile Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Password Protection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2.1 Block Lock/Unlock Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.2 Non-Volatile Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Command interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1 Standard commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1.1 Read/Reset command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1.2 Auto Select command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1.3 Read CFI Query command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1.4 Blank Verify command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1.5 Chip Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1.6 Block Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.7 Erase Suspend command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.8 Erase Resume command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1.9 Program Suspend command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1.10 Program Resume command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1.11 Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2 Fast Program commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1 Write to Buffer and Program command . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2.2 Write to Buffer and Program Confirm command . . . . . . . . . . . . . . . . . . 37
6.2.3 Write to Buffer and Program Abort and Reset command . . . . . . . . . . . 37
6.2.4 Double Word Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.5 Quadruple Word Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.6 Double byte Program Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.7 Quadruple byte Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.8 Octuple byte Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.9 Unlock Bypass command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.10 Unlock Bypass Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.2.11 Unlock Bypass Reset command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.3 Block Protection commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.3.1 Enter Extended Block command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Contents M29DW128F
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6.3.2 Exit Extended Block command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.3.3 Set Extended Block Protection bit command . . . . . . . . . . . . . . . . . . . . . 42
6.3.4 Verify Extended Block Protection bit command . . . . . . . . . . . . . . . . . . . 42
6.3.5 Password Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.3.6 Password Verify command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.3.7 Password Protection Unlock command . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.3.8 Set P a ssword Protection mode command . . . . . . . . . . . . . . . . . . . . . . . 43
6.3.9 Verify Password Protection mode command . . . . . . . . . . . . . . . . . . . . . 43
6.3.10 Set Standard Protection mode command . . . . . . . . . . . . . . . . . . . . . . . 44
6.3.11 Verify Standard Protection mode command . . . . . . . . . . . . . . . . . . . . . 44
6.3.12 Set Non-Volatile Modify Protection bit command . . . . . . . . . . . . . . . . . . 44
6.3.13 Verify Non-Volatile Modify Protection bit command . . . . . . . . . . . . . . . . 44
6.3.14 Clear Non-Volatile Modify Protection bits command . . . . . . . . . . . . . . . 45
6.3.15 Set Lock bit command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3.16 Clear Lock bit command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3.17 Verify Lock bit command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3.18 Set Lock-Down bit command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3.19 Verify Lock-Down bit command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7 Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.1 Data Po lling bit (DQ7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.2 Toggle bit (DQ6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.3 Error bit (DQ5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.4 Erase Timer bit (DQ3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.5 Alternative Toggle bit (DQ2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.6 Write to Buffer and Program Abort bit (DQ1) . . . . . . . . . . . . . . . . . . . . . . 50
8 Dual Operations and Multiple Bank architecture . . . . . . . . . . . . . . . . . 53
9 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
11 Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
12 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
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Appendix A Block addresses and Read/Modify Protection Groups . . . . . . . . . 69
Appendix B Common Flash Interface (CFI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Appendix C Extended Memory Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
C.1 Factory Locked Section of the Extended Block. . . . . . . . . . . . . . . . . . . . . 83
C.2 Customer Lockable Section of the Extended Block. . . . . . . . . . . . . . . . . . 84
Appendix D High Voltage Block Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
D.1 Programmer technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
D.2 In-System technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Appendix E Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
List of tables M29DW128F
6/94
List of tables
Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2. Bank architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 3. Bus operations, 8-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 4. Read Electronic Signature, 8-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 5. Block Protection, 8-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 6. Bus operations, 16-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 7. Read Electronic Signature, 16-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 8. Block Protection, 16-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 9. Hardware Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 10. Block Protection status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 11. Standard Commands, 8-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 12. Standard Commands, 16-bit mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 13. Fast Program Commands, 8-bit mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 14. Fast Program Commands, 16-bit mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 15. Block Protection Commands, 8-bit mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 16. Block Protection Commands, 16-bit mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 17. Protection Command Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 18. Program, Erase Times and Program, Erase Endurance Cycles. . . . . . . . . . . . . . . . . . . . . 48
Table 19. Status Register bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 20. Dual Operations allowed in other Banks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 21. Dual Operations allowed in same Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 22. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 23. Operating and AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 24. Device capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 25. DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 26. Read AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Table 27. Write AC characteristics, Write Enable Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 28. Write AC characteristics, Chip Enable Controlled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 29. Toggle and Alternative Toggle bits AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 30. Reset/Block Temporary Unprotect AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 31. TSOP56 – 56 lead Plastic Thin Small Outline, 14 x 20mm, package mechanical data . . . 66
Table 32. TBGA64 10x13mm - 8x8 active ball array, 1mm pitch, packa ge mec ha n i cal da ta. . . . . . . 67
Table 33. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 34. Block Addresses and Protection Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 35. Query Structure Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table 36. CFI Query Identification String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table 37. CFI Query System Interface information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Table 38. Device Geometry Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Table 39. Primary Algorithm-Specific Extended Query table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table 40. Security Code Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Table 41. Extended Block Address and Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Table 42. Programmer technique Bus operations, 8-bit or 16-bit mode. . . . . . . . . . . . . . . . . . . . . . . 86
Table 43. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
M29DW128F List of figures
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List of figures
Figure 1. Logic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2. TSOP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 3. TBGA connections (top view through package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Block Addresses (x8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. Block Addresses (x16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. Block Protection State diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 7. Software Protection scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 8. Data Polling flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 9. Toggle flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 10. AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 11. AC measurement Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 12. Random Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 13. Page Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 14. Write AC waveforms, Write Enable Controlled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 15. Write AC waveforms, Chip Enable Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 16. Toggle and Alternative Toggle bits mechanism, Chip Enable Controlled. . . . . . . . . . . . . . 63
Figure 17. Toggle and Alternative Toggle bits mechanism, Output Enable Controlled . . . . . . . . . . . . 63
Figure 18. Reset/Block Temporary Unprotect AC waveforms (No Program/Erase ongoing) . . . . . . . 64
Figure 19. Reset/Block Temporary Unprotect During Program/Erase Operation AC waveforms . . . . 64
Figure 20. Accelerated Program Timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 21. TSOP56 – 56 lead Plastic Thin Small Outline, 14 x 20mm, package outline . . . . . . . . . . . 66
Figure 22. TBGA64 10x13mm - 8x8 active ball array, 1mm pitch, package outline . . . . . . . . . . . . . . 67
Figure 23. Programmer equipment Group Protect flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 24. Programmer equipment Chip Unprotect flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 25. In-System equipment Group Protect flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 26. In-System equipment Chip Unprotect flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Figure 27. Write to Buffer and Program flowchart and Pseudo Code . . . . . . . . . . . . . . . . . . . . . . . . . 91
Summary description M29DW128F
8/94
1 Summary description
The M29DW128F is a 128 Mbit (16Mb x8 or 8Mb x16) non-volatile memory that can be
read, erased and reprogr ammed. These operations can be performed using a single low
voltage (2.7 to 3.6V) supply. At Power-up the memory defaults to its Read mode.
The M29DW128F features an asymmetrical block archit ecture, with 16 parameter and 254
main blocks, divided into four Banks, A, B, C and D, providing multiple Bank operations.
While programming or erasing in one bank, read operations are possible in any other bank.
The bank architecture is summarized in Table 2. Eight of the P aram eter Blocks are at the top
of the memory address space, and eight are at t he bottom.
Progr am and Er ase commands a re written to the Command Int erf a ce of the memory. An on-
chip Program/Erase Controller simplifies the process of programming or erasing the
memory by taking care of all of the special operations that are required to update the
memory contents. The end of a program or erase opera tion can be detected and any error
conditions identified. The command set required to control the memory is consistent with
JEDEC standards. The Chip Enable, Output Enable and Write Enable signals control th e
bus o perations of th e memory. The y allow simp le connection to most m icroprocessors , often
without additional logic.
The device supports Asynchronous Random Read and Page Read from all bl ocks of the
memory array.
The M29DW128F has one extra 256 byte block (Extended Block) that can be accessed
using a dedicated command. The Extended Bloc k can be protected and so is useful for
storing security information. However the protection is irreversible, once protected the
protection cannot be undone .
Each block can be erased independently, so it is possible to preserve valid data while old
data is erased.
The device features four different levels of hardware and software block protection to avoid
unwant ed prog ram or er ase (modify) . The sof tware b l ock pr otection f e atures are a v ailab l e in
16 bit memory organization only:
●Hardware Protection:
–The V
PP/WP provides a hardware protection of the four outermost parameter
blocks (two at the top and two at the bottom of the address space).
–The RP
pin tempora rily unprotects all the b loc ks pre viou sly protected using a High
Voltage Block Protection technique (see Appendix D: High Voltage Block
Protection).
●Software Protection
– Standard Protection
– Password Protection
The memory is offered in TSOP56 (14 x 20mm) and TBGA64 (10 x 13mm, 1mm pitch)
packages. The 8-bit Bus mode is only available when the M29DW128F is delivered in
TSOP56 pac kage. In order to meet en vironmen tal requirements , ST off ers the M29DW128F
in ECOPA CK® packages. ECOPA CK pack ages are Lead-free. The category of second Le v el
Interconnect is mark ed on the package and on the inner box label, in compliance with
JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also
marked on the inne r bo x label. ECOPACK is an ST tra demark. ECOPA CK specification s are
available at: www.st.com. The memory is supplied with all the bits erased (set to ’1’).
M29DW128F Summary description
9/94
Figure 1. Logic diagram
Table 1. Signal names
A0-A22 Address Inputs
DQ0-DQ7 Data Inputs/Outputs
DQ8-DQ14 Data Inputs/Outputs
DQ15A–1 Data Input/Output or Address Input
EChip Enable
GOutput Enable
WWrite Enable
RP Reset/Block Temp orary Unprotect
RB Ready/Busy Output
BYTE Byte/Word Organization Select(1)
1. The x8 organization is only available in TSOP56 Package while the x16 organization is available for both
packages.
VCC Supply voltage
VPP/WP VPP/Write Protect
VSS Ground
NC Not Connected Internally
AI09208b
23
A0-A22
W
DQ0-DQ14
VCC
M29DW128F
E
VSS
15
G
RP
DQ15A–1
RB
VPP/WP
BYTE
Summary description M29DW128F
10/94
Figure 2. TSOP connections
Table 2. Bank architecture
Bank Bank size
P a rameter Blocks Main Blocks
No. of
Blocks Blo ck size No. of
Blocks Block size
A 16 Mbit 8 8 Kbytes/ 4 KWords 31 64 Kbytes/ 32 KW ords
B 48 Mbit — — 96 64 Kbytes/ 32 KWords
C 4 8 Mbit — — 96 64 Kbytes/ 32 KWords
D 16 Mbit 8 8 Kbytes/ 4 KWords 31 64 Kbytes/ 32 KW ords
DQ3
DQ9
DQ2
A6 DQ0
W
A3
RB
DQ6
A19
A8 DQ13
A17
A12
DQ14
A2
DQ12
DQ10
DQ15A–1
VCC
DQ4
DQ5
A7
DQ7
VPP/WP
A21
AI09209c
M29DW128F
14
1
15
28 29
42
43
56
DQ8
NC
A20
A1
A18
A4
A5
DQ1
DQ11
G
A14
A15 A16
A13 BYTE
NC
A22
VSS
E
A0
RP
VSS
A9
A10
A11
NC
NC
NC
NC
VCC
M29DW128F Summary description
11/94
Figure 3. TBGA connections (top view through package)
654321
VSS
A11
A10
A8
A9
DQ3
DQ11
DQ10
A18
VPP
/
WP
RB
A0
A2
A4
A3
G
NC
NC
NC
DQ2
DQ1
DQ9
DQ8
A6
A17
A7
DQ4
VCC
DQ12
DQ5
A19
A21
RP
W
A5
DQ0
NC
NC
VSS
A1 A20
DQ7
NC
C
B
A
E
D
F
G
H
DQ15
87
AI09210c
NC
A15
A14
A12
A13
DQ6
DQ13
DQ14
NC
A22
NC
VSS
A16
NC
NC
E
NC
NC
VCC
VCC
Summary description M29DW128F
12/94
Figure 4. Block Addresses (x8)
1. Also see Appendix A and Table 34 for a full listing of the Block Addresses.
AI08966
64 KBytes
800000h
80FFFFh
64 KBytes
FE0000h
FEFFFFh
(x8)
Address lines A22-A0, DQ15A-1
64 KBytes
DF0000h
DFFFFFh
Total of 96
Main Blocks
64 KBytes
E00000h
E0FFFFh
8 KBytes
FFE000h
FFFFFFh
8 KBytes
FF0000h
FF1FFFh
Total of 31
Main Blocks
Total of 8
Parameter
Blocks
Bank C
Bank D
8 KBytes
000000h
001FFFh
64 KBytes
1F0000h
1FFFFFh
8 KBytes
00E000h
00FFFFh
Total of 8
Parameter
Blocks
64 KBytes
010000h
01FFFFh
64 KBytes
7F0000h
7FFFFFh
64 KBytes
200000h
20FFFFh
Total of 31
Main Blocks
Total of 96
Main Blocks
Bank B
Bank A
M29DW128F Summary description
13/94
Figure 5. Block Addresses (x16)
1. Also see Appendix A, Table 34 for a full listing of the Block Addresses.
AI08967
32 KWords
400000h
407FFFh
32 KWords
7F0000h
7F7FFFh
(x16)
Address lines A22-A0
32 KWords
6F8000h
6FFFFFh
Total of 96
Main Blocks
32 KWords
700000h
707FFFh
4 KWords
7FF000h
7FFFFFh
4 KWords
7F8000h
7F8FFFh
Total of 31
Main Blocks
Total of 8
Parameter
Blocks
Bank C
Bank D
4 KWords
000000h
000FFFh
32 KWords
0F8000h
0FFFFFh
4 KWords
007000h
007FFFh
Total of 8
Parameter
Blocks
32 KWords
008000h
00FFFFh
32 KWords
3F8000h
3FFFFFh
32 KWord
100000h
107FFFh
Total of 31
Main Blocks
Total of 96
Main Blocks
Bank B
Bank A
Signal descriptions M29DW128F
14/94
2 Signal descriptions
See Figure 1: Logic diagram, and Table 1: Signal names, for a brief overview of the signals
connected to this device.
2.1 Address Inputs (A0-A22)
The Address Inputs select the cells in the me mory array to access during Bus Read
operations. During Bus Write operations they control the commands sent to the Command
Interface of the Program/Erase Controller.
2.2 Data Inputs/Outputs (DQ0-DQ7)
The Data I/O outputs the data stored at the selected address during a Bus Read operation.
During Bus Write operations they represent the commands sent to the Command Interface
of the internal state machine.
2.3 Data Inputs/Outputs (DQ8-DQ14)
The Data I/O outputs the data stored at the selected addr ess during a Bus Read operation
when BYTE is High, VIH. When BYTE is Low, VIL, these pins are not used and are high
impedance. During Bus Write operations the Command Register does not use these bits.
When reading the Status Register these bits should be ignored.
2.4 Data Input/Output or Address Input (DQ15A–1)
When the device is in x16 Bus mode, this pin behaves as a Data Input/Output pin (as DQ8-
DQ14). When the device is in x8 Bus mode, this pin behaves as an address pin; DQ15A–1
Low will select the LSB of the addressed Word, DQ15A–1 High will select the MSB.
Throughout the te xt consider references to the Data Input/Output to include this pin when
the device operates in x16 bus mode and references to the Address Inputs to include this
pin when the device operates in x8 bus mode except when stated explicitly otherwise .
2.5 Chip Enable (E)
The Chip Enab le pin, E, activ ates the memory, allowing Bus Read and Bus Write operations
to be performed. When Chip Enable is High, VIH, all other pins are ignored.
2.6 Output Enable (G)
The Output Enable pin, G, controls the Bus Read operation of the memory.
M29DW128F Signal descriptions
15/94
2.7 Write Enable (W)
The Write Enable pin, W, controls the Bus Write operation of the memory’s Command
Interface.
2.8 VPP/Write Protect (VPP/WP)
The VPP/Write Protect pin provides two functions. The VPP function allows the memory to
use an external high voltage power supply to reduce the time req uired for Program
operat ions. This is achieved by bypassing the unlock cycles and/or using the multiple Word
(2 or 4 at-a-time) or multiple byte Program (2, 4 or 8 at-a-time) commands.
The Write Protect function provides a hardware method of protecting the four outermost
boot blocks (two at the to p, and two at the bottom of the address space). When VPP/Write
Protect is Low, VIL, the memory protects the f our outermost boot b loc ks; Progr am and Er ase
operat ions in these blocks are ignored while VPP/Write Protect is Low, even when RP is at
VID.
When VPP/Wr ite Protect is High, VIH, the mem ory reverts to the previous protection status
of the four outermost boot blocks. Program and Erase operations can now modify th e data
in these blocks unless the blocks are protected using Block Protection.
Applying VPPH to the VPP/WP pin will temporarily unprotect any block previously protected
(including the four outermost parameter blocks) using a High Voltage Block Protection
technique (In-System or Programmer technique). See Table 9: Hardware Protection for
details.
When VPP/Write Protect is raised to VPP the memory automatically en te rs th e Un lo ck
Bypass mode. When VPP/Write Protect returns to VIH or VIL normal operation resumes.
During Unlock Byp ass Progr am oper ations the memory draw s IPP from the p in to su pply the
progr amming cir cuits. See the description of the Unlock Bypass command in th e Command
Interface section. The transitions from VIH to VPP and from VPP to VIH must be slo wer than
tVHVPP
, see Figure 20.
Never raise VPP/Write Protect to VPP from any mode except Read mode, otherwise the
memory may be left in an indetermin a te sta te.
The VPP/Write Protect pin must not be left floating or uncon nected or the device may
become unreliable. A 0.1µF capacitor should be connected between the VPP/Write Protect
pin and the VSS Ground pin to deco uple the curre nt surges from the pow er supply. T he PCB
trac k widths must be sufficient to carry the currents required during Unloc k Bypass Progr am,
IPP
.
Signal descriptions M29DW128F
16/94
2.9 Reset/Block Temporary Unprotect (RP)
The Reset/Block Temporary Unprotect pin can be used to apply a Hardware Reset to the
memory or to temporarily unprotect all the b locks previously protected u sing a High Voltage
Block Protection technique (In-System or Programmer technique).
Note that if VPP/WP is at VIL, then the f our outermost parameter bloc ks will remain protected
even if RP is at VID.
A Hardware Reset is achiev ed by holding Reset/Block Temporary Unprotect Low, VIL, for at
least tPLPX. After Reset/Block Temporary Unprotect goes High, VIH, the memory will be
ready for Bus Read and Bus Write operations after tPHEL or tRHEL, whichever occurs last.
See the Ready/Busy Output section, Table 30: Reset/Block Temporary Unprotect AC
characteristics and Figure 18 and Figure 19 for more details.
Holding RP at VID will temporarily unprotect all the blocks previously protected using a High
Voltage Block Protection technique. Program and erase operations on all blocks will be
possible. The transition from VIH to VID must be slower than tPHPHH.
2.10 Ready/Busy Output (RB)
The Ready/Busy pin is an open-drain output that can be used to identify when the device is
performing a Program or erase operation . During Prog ram or erase oper a ti ons Read y/ Busy
is Low, V OL. Ready/Busy is high-impedance during Read mode, Auto Select mode and
Erase Suspend mode.
After a Hardw are Reset, Bus Read and Bus Write oper ations cannot begi n until Ready/Busy
becomes high-impedance. See Table 30: Reset/Block Temporary Unprotect AC
characteristics and Figure 18 and Figure 19.
The use of an open-drain output allows the Ready/Busy pins from several memories to be
connected to a single pull-up resistor. A Low will then indicate that one, or more, of the
memories is busy.
2.11 Byte/Word Organization Select (BYTE)
It is used to switch between the x8 and x16 Bus mode s of the memory when the
M29DW128F is delivered in TSOP56 package. When Byte/Word Organization Select is
Low, VIL, the memory is in x8 mode, when it is High, VIH, the memory is in x16 mode.
M29DW128F Signal descriptions
17/94
2.12 VCC supply voltage (2.7V to 3.6V)
VCC provides the power supply for all operations (Read, Program and Erase).
The Command Interface is disabled when the VCC Supply Voltage is less than the Lockout
Voltage, VLKO. This prevents Bus Write operations from accidentally damaging the data
during pow er up, power down and power surges. If the Prog ram/Erase Cont roller is
progr amming or erasin g during this time then th e operation abo rts and the memory contents
being altered will be invalid.
A 0.1µF capacitor should be connected between the VCC Supply Voltage pin and the VSS
Ground pin to decouple the current surges from the power supply. The PCB track widths
must be sufficient to carry the currents required during Program and erase operations, ICC2.
2.13 VSS Ground
VSS is the reference f or all v o ltage measur ements . The device feat ures tw o VSS pins both of
which must be connected to the system ground.
Bus operations M29DW128F
18/94
3 Bus operations
There are five standard bus operations that control the device. These are Bus Read
(Random and Page modes), Bus Write, Output Disable, Standby and Automa tic Standby.
Dual operations are possible in the M29DW128F, thanks to its multiple bank architecture.
While progr amming or erasing in one ban ks, read oper ations are possibl e in any of the othe r
banks. Write operations are only allowed in one bank at a time.
See Table 3 and Table 6, Bus Operatio ns, f o r a su mma ry. Typically glitches of less than 5ns
on Chip Enable, Write Enable, and Reset/Block Temporary Unprotect pins are ignored by
the memory and do not affect bus operations.
3.1 Bus Read
Bus Read operations read from the memory cells, or specific registers in the Command
Interface. To speed up the read operation the memory array can be read in Page mode
where data is internally read and stored in a page buffer. The Page has a size of 8 Words
and is addressed by the address inputs A0-A2.
A valid Bus Read operation inv olves setting the desired address on the Address Inputs,
applying a Low signal, VIL, to Chip Enable a nd Output Enable and keeping Write Enable
High, VIH. The Data Inputs/Outputs will output the value, see Figure 12: Random Read AC
waveforms, Figure 13: Page Read AC waveforms, and Table 26: Read AC characteristics,
for details of when the output becomes valid.
3.2 Bus Write
Bus Write operations write to the Command I nterf ace. A v alid Bus Write operat ion begins b y
setting the desire d address on the Address Inp uts. The Address In puts are latched by the
Command Interface on the falling edge of Chip Enable or Write Enable, whichever occurs
last. The Data Inputs/Outputs are latche d by the Command Interface on the rising edge of
Chip Enable or Write Enable, whichever occurs first. Output Enable must remain High, VIH,
durin g the who le Bu s Write operation. See Figure 14 and Figure 15, Write AC Waveforms,
and Table 27 and Table 28, Write AC Characteristics, for details of the timing requirements.
3.3 Output Disable
The Data Inputs/Outputs are in the high impeda nce state when Output Enable is High, VIH.
3.4 Standby
When Chip Enable is High, VIH, the memory enters Standby mode and the Data
Inputs/Output s pins are placed in the h igh-impedance state . To reduce the Supply Current to
the Standby Supply Current, ICC2, Chip Enable should be held within VCC ± 0.2V. For the
Standb y current le v el see Ta ble 25: DC Char acteristics. During progr am or erase oper ations
the memory will continue to use the Program/Erase Supply Current, ICC3, for Prog ram or
Erase operations until the operatio n co mp le te s.
M29DW128F Bus operations
19/94
3.5 Automatic Standby
If CMOS levels (VCC ± 0.2V) are used to drive the bus and the bus is inactive for 300ns or
more the memory enters A utomatic Standb y where the inte rnal Supply Current is reduced to
the Standby Supply Current, ICC2. The Data Inputs/Outputs will still output data if a Bus
Read operation is in progress.
3.6 Special Bus operations
Additional bus operations can be performed to read the Electronic Signature, verify the
Protection Status of the Extended Memory Block (second section), and apply and remove
Block Protection. These bus operations are intend ed for use by programming eq u i pm e nt
and are not usually used in applications. They require VID to be applied to some pins.
3.6.1 Read Electronic Signature
The memory has two codes, the Manufacturer code and the Device code used to identify
the memory. These codes can acce ssed by pe rforming read operations with control signals
and addresses set as shown in Table 4 and Table 6. These codes can also be accessed by
issuing an Auto Select command (see Section 6.1.2: Auto Select command).
3.6.2 Verify Extended Block Protection Indicator
The Extended Block is divided in two sections of which one is Factory Locked and the
second one is either Customer Lockable or Customer Locked.
The Protection Status of the second section of the Extended Block (Customer Lockable or
Customer Locked ) can be accessed by reading the Extended Block Protection Indicator.
This is performed by applying the signals as shown in Table 5 and Table 8. The Protection
Status of the Exten ded Block is t hen output on bits DQ7 and DQ6 of the Data Inpu t/Outputs .
(see Table 3 and Table 6, Bus Operations).
The Protection Status of the Extended Block can also be accessed by issuing an Auto
Select command (see Section 6.1.2: A uto Select command).
3.6.3 Verify Block Protection Status
The Protectio n Status of a Block can be directly accessed by performing a read operation
with control signals and addresses set as shown in Table 5 and Table 8. If the Block is
protected, then 01h (in x8 mode) is outp ut on Data Input/Outputs DQ0-DQ7, otherwise 00h
is output.
3.6.4 Hardware Block Protect
The VPP/WP pin can be used to protect the f our o utermost p arameter b locks . When VPP/WP
is at VIL the f our outermost parameter b loc ks are protect ed and remain protected regardless
of the Block Protection Status or the Reset/Block Temporary Unprotect pin state.
Bus operations M29DW128F
20/94
3.6.5 Temporary Unprotect of high voltage Protected Blocks
The RP pin can be use d to te mpo rarily unprotect all the blocks previously protect ed usin g the In -Syste m
or the Programme r protection technique (High Voltage techniques). Re fer to Section 2.9: Reset/Block
Temporary Un pr ot ec t (RP).
Table 3. Bus operations, 8-bit mode(1)
Operation E G W RP VPP/WP Address Inputs Data Inputs/Outputs
A22-A0, DQ15A-1 DQ14-DQ8 DQ7-DQ0
Bus Read VIL VIL VIH VIH VIH Cell Address Hi-Z Data Output
Bus Write VIL VIH VIL VIH VIH Command Address Hi-Z Data Input
Output Disable X VIH VIH VIH VIH X Hi-Z Hi-Z
Standby VIH XXV
IH VIH X Hi-Z Hi-Z
1. X = VIL or VIH.
Table 4. Read Electronic Signature, 8-bit mode(1)
Read Cycle E G W
Address Inputs Data
Inputs/Outputs
A22-A10 A9 A8 A7-A6 A5-A4 A3 A2 A1 A0 DQ15A-1 DQ14-
DQ8 DQ7-
DQ0
Manufacturer Code
VIL VIL VIH XV
ID XV
IL
XV
IL VIL VIL VIL X Hi-Z 20h
Device Code (Cycle 1)
VIL
VIL VIL VIL VIH XHi-Z7Eh
Device Code (Cycle 2) VIH VIH VIH VIL X Hi-Z 20h
Device Code (Cycle 3) VIH VIH VIH VIH X Hi-Z 00h
1. X = VIL or VIH.
Table 5. Block Protection, 8-bit mode(1)
Operation E G W RP VPP/
WP
Address Inputs Data Inputs/Outputs
A22
-
A12
A11-
A10 A9 A8 A7 A6 A5
-
A4
A3-
A2 A1 A0 DQ15
A-1 DQ14
-DQ8 DQ7-DQ0
Verify Extended
Block
Protection
Indicator (bits
DQ6, DQ7) VIL VIL VIH VIH VIH
BA
XV
ID X
X
VIL
X
VIL VIH
VIH X
Hi-Z
80h (Customer
Lockable)
C0h (Customer
Locked)(2)
Verify Block
Protection
Status BKA VIL VIL VIL X01h (protected)
00h
(unprotected)
Temporary
Block
Unprotect (3) XXXV
ID X Valid Data Input
1. X = VIL or VIH. BKA Bank Address, BA any Address in the Block.
2. This indicates the protection status of the second section of the Extended Block; the first section of the Extended Block
being always Factory Locked.
3. The RP pin unprotects all the blocks that have been previously protected using a High Voltage protection Technique.
M29DW128F Bus operations
21/94
Table 6. Bus operations, 16-bit mode(1)
Operation E G W RP VPP/
WP
Address Inputs Data Inputs/Outputs
A22-A0 DQ15A-1, DQ14-DQ0
Bus Read VIL VIL VIH VIH VIH Cell Address Data Output
Bus Write VIL VIH VIL VIH VIH Command Address Data Input
Output Disable X VIH VIH VIH VIH XHi-Z
Standby VIH XXV
IH VIH XHi-Z
1. X = VIL or VIH.
Table 7. Read Electronic Signature, 16-bit mode(1)
Read Cycle E G W
Address Inputs Data Inputs/Outputs
A22-
A10 A9 A8 A7-
A6 A5-
A4 A3 A2 A1 A0 DQ15A-1, DQ14-DQ0
Manufacturer Code
VIL VIL VIH XV
ID XV
IL
XV
IL VIL VIL VIL 0020h
Device Code (Cycle 1)
VIL
VIL VIL VIL VIH 227Eh
Device Code (Cycle 2) VIH VIH VIH VIL 2220h
Device Code (Cycle 3) VIH VIH VIH VIH 2200h
1. X = VIL or VIH.
Table 8. Block Protection, 16-bit mode(1)
Operation E GWRP VPP/
WP
Address Inputs Data Inputs/Outputs
A22-
A12 A11-
A10 A9 A8 A7 A6 A5-
A4 A3-
A2 A1 A0 DQ15A-1, DQ14-DQ0
Verify Extended
Block Indicator
(bits DQ6, DQ7) VIL VIL VIH VIH VIH
BA XV
ID XXVIL
XVIL VIH
VIH
0080h
(Customer Lockable)
00C0h
(Customer Locked)(2)
Verify Block
Protection Status BKA VIL VIL VIL 0001h (protected)
0000h (unprotected)
Temporary Block
Unprotect (3) XXXV
ID X Valid Data Input
1. X = VIL or VIH. BKA Bank Address, BA Any Address in the Block.
2. This indicates the protection status of the second section of the Extended Block; the first section of the Extended Block
being always Factory Locked.
3. The RP pin unprotects all the blocks that have been previously protected using a High Voltage protection Technique.
Hardware Protection M29DW128F
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4 Hardware Protection
The M29DW128F features hardware protection/unprotection. Refer to Table 9 for details on hardware
block protection/unprotection using VPP/WP and RP pins.
4.1 Write Protect
The VPP/WP pin protects the four outermost parameter b l ocks (refer to Section 2: Signal descriptions for
a detailed description of the signals).
4.2 Temporary Block Unprotect
When held at VID, the Reset/Bloc k Temporary Unprotect pin, RP, will temporarily unprotect all the blocks
previously protected using a High Voltage Block Protection technique.
Table 9. Hardware Protection
VPP/WP RP Function
VIL
VIH 4 outermost para meter blocks protected from
Program/Erase operations
VID All blocks temporarily unprotecte d except the 4
outermost blocks(1)
VIH or VID VID All blocks temporarily unprotected(1)
VPPH VIH or VID All b locks temporarily unprotected(1)
1. The temporary unprotection is valid only for the blocks that have been protected using the High Voltage Protection
Technique (see Appendix D: High Voltage Block Protection). The blocks protected using a software protection method
(Standard, Password) do not follow this rules.
M29DW128F Software Protection
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5 Software Protection
The M29DW128F has two different Software Protection modes: the Standard Protection
mode and the Password Protection mode.
On first use all parts default to the Standard Protection mode and the customer is free to
activate the Standard or the Password Protection mode.
The desired pro tectio n mode is act ivated b y setti ng one of tw o on e-time p rog r ammable bits,
the Standard Pro tection Mode Lock bit or the Password Protection Mode Lock bit.
Progra mming the Standard and the Password Protection Mode Lock bit to ‘1’ will
permanently activate the Standard Pro tection mode and the Password Protection mode,
respectively. These two bits are one-time programmable and non-volatile, once the
Protection mode has been programmed, it cannot be changed and the device will
permanently operate in the selected Protection mode. It is recommended to activate the
desired Software Protection mode when first programming the device.
The device is shipped with all blocks unprotected. The Block Protection Status can be read
by issuing the A uto Select command (see Table 10: Block Protection status).
The Standard and Passw ord Protection modes offer tw o levels of protection, a Block
Lock/Unlock protection and a Non-Volatile protection.
For the four outermost parameter blocks, an even higher level of b lock protection can be
achieved by locking the blocks using the Non-Volatile Protection and then by holding the
VPP/WP pin Low.
5.1 Standard Protection mode
5.1.1 Block Lock/Unlock Protection
It is a flexible mechanism to protect/unprotect a block or a gr oup of blocks from program or
erase operations.
A v olatile Lock bit is assigned to each block or g roup of b loc ks . When the lock bit is set to ‘1’
the associated bloc k or group of blocks is protected f rom program/erase operations, when
the Lock bit is set to ‘0’ the associated block or group of blocks is unprotected and can be
programmed or erased.
The Lock bits can be set (‘1’) and cleared (‘0’) individually as often as requir ed by issuing a
Set Lock Bit command and Clear Lock bit command, respectively.
After a Power-up or Hardware Reset, all the Lock bits are cleared to ‘0’ (block unlocked).
Software Protection M29DW128F
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5.1.2 Non-Volatile Protection
A Non-Volatile Modify Protection bit is assigned to each block or group of blocks.
When a Non-Volatile Modify Protection bit is set to ‘1’ the associated block or group of
blocks is protected, preventing any program or erase oper ations in this block or group of
blocks.
The Non-Volatile Modify Protection bits are set individually by issuing a Set Non-Volatile
Modify Protection bit command. They are non-volatile and will remain set through a
hardware reset or a power-down/power-up sequence.
The Non-Volatile Modify Protection bits cannot be cleared individually, they can only be
cleared all at the same time by issuing a Cle ar Non-Volatile Modify Protect ion bits
command.
How ev er if any one of the Non-Volatile Modify Pr otecti on bits h as to be clear ed, ca re should
be taken to preprogram to ‘1’ all the Non-Volatile Modify Protection bits prior to issuing the
Clear Non-Volatile Modify Protection bits in order to prevent the over-erasure of previously
cleared Non Volatile Modify Protect ion bits. It is crucial to prevent o ver-er asur e because the
process may lead to per manent damage to the Non-Volatile Modify Protection bits and the
device does not have any built-in means of preventing ov er-erasure.
The device features a volatile Lock-Down bit which can be used to prevent changing th e
state of the No n-Volatile Modify Protection bits. When set to ‘1’, the No n-Volatile Modify
Protection bit s can no longer be modified; when set to ‘0’, the Non-Volatile Modify Protection
bits can be set and reset using the Set Non-Volatile Modify Protection bit command and the
Clear Non-Volatile Modify Protection bits command, respectively.
The Loc k-Down bit is set by issuin g the Set Loc k-Do wn bit Command. It is not cleared using
a command, but through a hardware reset or a power-down/power-up sequence.
The parts are shipped with the Non-Volatile Modify Protection bits set to ‘0’.
Loc ked blocks and Non-Volatile Locked blocks can co-exist in the same memory array.
Refer to Table 10: Block Protection status and Figure 7: Software Protection scheme for
details on the block protection mechanism.
5.2 Password Protection mode
The Password Protection mode provides a more advanced level of softw are protection than
the Standard Protection mode.
Prior to entering the Password Protection mode, it is necessary to set a password and to
verify it (see Section 6.3.5: Password Program command and Section 6.3.6: Password
Verify command). The Password Protection mode is then activated by programming the
Password Protection Mode Lock bit to ‘1’. The Reset/Block Temporary Unprotect pin, RP,
can be at VID or at VIH.
This operation is not reversible and once the bit is programmed the device will permanently
remain in the Password Protection mode.
The Password Protection mode uses the same protection mechanisms as the Sta ndard
Protection mode (Block Lock/Unlock, Non-Volatile Protection).
M29DW128F Software Protection
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5.2.1 Block Lock/Unlock Protection
The Block Lock/Unlock Protection operates exactly in the same way as in the Standard Protection mode.
5.2.2 Non-Volatile Protection
The Non-Volatile Protection is more advanced in the P assword Protection mode.
In this mode, the Lock-Down bit cannot be cleared through a hardware reset or a power-down/power-up
sequence.
The Loc k-Down bit is cleared b y issuing th e P ass word Protection Unloc k command along with the cor rect
password.
Once the correct Passw ord has be en pro v ided, th e Lock-Do wn bit is cl eared and the Non -Volatile Modify
Protection bits can be set or reset using the appropriate commands (the Set Non-Volatile Modify
Protection bit command or the Clear Non-Volatile Modify Protection bits command, respectively).
If the Password provided is not corre ct, the Lock-Down bit remains lock ed and the state of the Non-
Volatile Modify Protection bits cannot be modified.
The Passwo rd is a 64-bit co de locate d in th e mem ory space. It m ust be programmed by the user prior to
selecting the Password Protection mode. The Password is programmed by issuing a Password Program
command and chec ked b y issuing a P assw ord Verify command. The P ass word should be unique for each
part.
Once the device is in Password Protection mode, the Password can no longer be read or retrieved.
Moreover, all commands to the address where the password is stored, are disabled. Refer to Table 10:
Block Protection status and Figure 7: Software Protection scheme for details on the block protection
scheme.
Table 10. Block Protection status
Volatile
Lock
bit
Non-Volatile
Modify
Prot ectio n bi t
Lock-Down
bit
Block
Protection
status Block Pr otection status
00 0
00h Block
Unprotected
Non-Volatile Modify Protection bit can be
modified(1)
00 1 Non-Volatile Modify Prote c tion bit cannot be
modified(1)
01 0
01h
Block
Program/
Erase
Protected
Non-Volatile Modify Protection bit can be
modified(1)
10 0
11 0
01 1 Non-Volatile Modify Protec tion bit cannot be
modified(1)
10 1
11 1
1. The Lock bit can always be modified by issuing a Clear Lock bit command or by taking the device through a Power-up or
Hardware Reset.
Software Protection M29DW128F
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Figure 6. Block Protection State diagram
Figure 7. Software Protection scheme
ai11503
Set Standard Protection
Mode
Default:
Standard
Protection
Password
Protection
Standard
Protection
Set Password Protection
Mode
AI11504
Parameter Block or
Up to 4 Main Blocks
Non-Volatile Modify
Protection Bit
Lock Bit
Standard Protection
mode
Block Lock/Unlock Protection
Non-Volatile Protection
Password Protection
mode
Lock-Down bit
M29DW128F Command interface
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6 Command interface
All Bus Write operations to the memory are interpreted by the Command Interface.
Commands consist of one or more sequential Bus Write operations. Failur e to obse rve a
v alid sequence of Bus Write operations will result in the memory returning to Read mode.
The long command sequences are imposed to maximize data security.
The address used for the commands changes dependin g on whether the memory is in 16-
bit or 8-bit mode.
6.1 Standard commands
See either Table 12, or Table 11, depending on the conf iguration that is being used, for a
summary of the Standard commands.
6.1.1 Read/Reset command
The Read/Reset command returns the memory to Read mode. It also resets th e errors in
the Status Register. Either one or three Bus Write operations can be used to issue t he
Read/Reset command.
The Read/Reset command can be issued, between Bus Write cycles before the start of a
program or erase operation, to return the de vice to Read mode. If the Read/Reset command
is issued during the time-out of a Block erase operation, the memory will take up to 10µs to
abort. During the abort period no valid data can be read from the memory.
The Read/Reset command will not abort an Erase operation when issued while in Erase
Suspend.
6.1.2 Auto Select command
The Auto Select command is used to read the Manufacturer Code, the Device Code, the
Protection Status of e ach bloc k (Block Pr otection Status) and the Extended Bloc k Protection
Indicator. It can be addressed to either Bank.
Three consecutive Bus Write operations are required to issue the Auto Select command.
Once the A uto Select command is issu ed Bus Read operations to spec ific addresses output
the Manufacturer Code, the Device Code, the Extended Block Protection Indicator and a
Block Protection Status (see Table 11 and Table 12 in conjunction with Table 4, Table 5,
Table 7 and Table 8). The memor y rem ain s in Auto Select mode until a Read/Reset or CFI
Query command is issued.
Command interface M29DW128F
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6.1.3 Read CFI Query command
The Read CFI Query Command is used to put the addressed bank in Read CFI Query
mode. Once in Read CFI Query mode Bus Read operations to the same bank will output
data from the Common Flash Interface (CFI) Mem ory Area. If the read operations are to a
different bank from the one specified in the command then the read oper ations will output
the contents of the me m ory array and not the CFI data.
One Bus Write cycle is required to issue the Read CFI Query Command. Care must be
tak en to issue the command to one of the ba nks (A22-A19) along with the addr ess shown in
Table 3 and Table 6. Once the command is issued subsequent Bus Read opera tions in the
same bank (A22-A19) to the addresses shown in Appendix B: Common Flash Interface
(CFI) (A7-A0), will read from the Common Flash Interface Memory Area.
This command is valid only when the device is in the Read Array or Auto Select mode. To
enter Read CFI query mode from Auto Select mode, the Read CF I Query command must
be issued to the same bank address as the Auto Select command, otherwise the device will
not enter Read CFI Quer y mode.
The Read/Reset command must be issued to return the device to the previous mode (the
Read Array mode or Aut o Select mode). A second Rea d/Reset command is required to put
the device in Read Array mode from Auto Select mode.
See Appendix B, Table 35, Table 36, Table 37, Table 38, Table 39 and Table 40 f or details on
the information contained in the Common Flash Interface (CFI) memory area.
6.1.4 Blank Verify command
The Blank Verify command is used to check if a block is blank or in other words, if it has
been successfully erased and all its bits set to '1'. Three cycles are required to issue a Verify
command:
1. The command starts with two unlock cycles.
2. The third bus write cycle sets up the Verify command code along with the address of
the block to be checked.
3. Bus Read operations during the Blank Verify operation output the Status Register on
Data Inputs/Outputs (see 7: Status Register).
After the Blank Verify command has completed, the memory returns to Read mode, unless
an error has occurred. When an error occurs, the memory continues to output the Status
Register. A Read/Reset command must be issued to reset the error condition and return to
Read mode.F
6.1.5 Chip Erase command
The Chip Erase comman d can be used to erase the entire chip. Six Bus Write operations
are required to issue the Chip Erase Command and start the Program/Erase Controller.
If an y blocks are protected, then these are ignored and all the other blocks are erased. If all
of the blocks are protected the Chip Erase operation appears to start but will terminate
within about 100µs , leaving the dat a unchanged. No error cond ition is giv en when pro tected
blocks are ignored.
During the erase operation the memory will ignore all commands, including the Erase
Suspend command. It is not possib le to issue any command to abort the operation. Typical
chip erase times are given in Table 18. All Bus Read operations during the Chip Erase
M29DW128F Command interface
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operation will output the Status Register on the Data Inputs/Outputs. See the section on the
Status Register for more details.
After the Chip Erase operation has completed the memory will return to the Read mode,
unless an error has occurred. When an error occurs the memory will continue to output the
Status Register. A Read/Reset command must be issued to reset the error condition and
return to Read mode.
The Chip Erase Comm and set s all of th e bits in unpr ot ected blocks of the memory to ’1’. All
previous data is lost.
Command interface M29DW128F
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6.1.6 Block Erase command
The Bloc k Er ase command can be used t o eras e a list of one or mor e b loc ks in one or more
Banks. It sets all of the bits in the unprotected selected blocks to ’1’. All previous data in the
selected blocks is lost.
Six Bus Write operations are required to select the first block in the list. Each additional
bl ock in the list can be selected b y repeating the sixth Bus Write oper ation using the ad dress
of the additional bloc k. The Bloc k Erase operation starts the Prog r am/Erase Controller after
a time-out period of 50µs after the last Bus Write operation. Once the Program/Erase
Controller starts it is not possible to select any more blocks. Each additional block must
therefore be select ed within 50µs of the last block. The 50µs timer restarts wh en an
additional bloc k i s selecte d. After t he sixth Bus Write op era tion a Bus Read oper a tion within
the same Bank will output the Status Register . See the Status Register section f or details on
how to iden tify if the Program/Erase Controller has started the Block Erase operation.
If an y selected b l oc ks are prote cted then t hese are ignored and all the other selected b locks
are erased. If all of the selected blocks are protected the Block Erase operation appears to
start but will terminate within about 100µs, lea ving the data unchanged. No error condition is
given when protected blocks are ignored.
During the Block Erase oper ation the memory will ignore all commands except the Erase
Suspend command and the Read/Reset command which is only accepted during the 50µs
time-out period. Typical block erase times are given in Table 18.
After the Erase operation has started all Bus Read operations to the Banks being erased will
output the Stat us Register on the Data Inputs/Outputs. See the section on the Status
Register for more details.
After the Block Erase operation has completed the memory will return to the Read mode,
unless an error has occurred.
When an error occurs, Bus Read operations to t he Banks where the command was issued
will continue to output the Status Register. A Read/Reset command mu st be issued to reset
the error condition and return to Read mode.
6.1.7 Erase Suspend command
The Erase Suspend command may be used to temporarily suspend a Block or multiple
Block Erase operation. One Bus Write operation specifying the Bank Address of one of the
Blocks being erased is required to issue the command. Issuing the Erase Suspend
command returns the whole device to Read mode.
The Program/Erase Controller will suspend within the Erase Suspend Latency time (see
Table 18 for value) of the Er ase Suspen d Command bei ng issued. Once the Progr am/Er ase
Controller has stopped the memory will be set to Read mode and the Erase will be
suspended. If the Er ase Suspend command is issued during the period when the memory is
waiting for an additional b lock (b ef ore the Prog ram/Era se Controller st arts) then the Er ase is
suspended immediately and will start immediately when the Erase Resume Command is
issued. It is not possible to select any further blocks to erase after the Erase Resume.
During Erase Suspend it is possible to Read and Program cells in blocks that are not being
erased; both Read and Program oper ations behave as normal on these blocks. If any
attempt is made to prog ram in a p rotected b loc k or in the suspended b loc k then th e Progr am
command is ignored and the data remains unchanged. The Status Register is not read and
no error condition is giv e n. Reading from blocks that are being er ased will output the Status
Register.
M29DW128F Command interface
31/94
It is also possible to issue the Auto Select, Read CFI Query and Unlock Bypass commands
during an Erase Suspend. The Read/Reset command must b e issued to return the de vice to
Read Array mode before the Resume command will be accept ed.
During Erase Suspend a Bus Read operation to the Extended Block will output the
Extended Bloc k data. Once in the Exten ded Block mode , the Exit Exten ded Bloc k command
must be issued before the erase operation can be resumed.
6.1.8 Erase Resume command
The Erase Resume command is used to restart the Program/Erase Controller after an
Erase Suspend. The command must include the Bank Address of the Erase-Suspended
Bank, otherwise the Program/Er ase Controller is not rest arted.
The de vice must be in Read Arra y mode before the Resume command will be accepted. An
Erase can be suspended and resumed more than once.
6.1.9 Program Suspend command
The Progr am Suspend command allo ws the system to int errupt a progra m operation so that
data can be read from any block. When the Program Suspend command is issued during a
progr am operation, the device suspends the prog ram opera tion within the Prog ram Suspend
Latency time (see Table 18 for value) and updates the Status Register bits. The Bank
Addresses of the Block being pr ogrammed must be specified in the Program Suspend
command.
After the prog ram operati on has been suspended, th e syste m can rea d ar r ay data f rom an y
address. However, data read from Program-Suspended addr esses is not valid.
The Program Suspend command may also be issued during a program oper ation while an
erase is suspended. In this case, data may be read from any addresses not in Erase
Suspend or Prog ra m Suspend. If a read is needed fr om the Exten ded Bloc k area (On e-time
Program area), the user must use the proper command sequences to enter and exit this
region.
The system may also issue the Auto Select command sequence when the device is in the
Program Suspend mode. The system can read as many Auto Select codes as required.
When the device exits the Auto Select mode, the device reverts to the Program Suspend
mode, and is ready for another valid operation. See Aut o Select command sequence for
more information.
6.1.10 Program Resume command
After the Program Resume command is issued, the device reverts to programming. The
controller can determine the status of the program operation using the DQ7 or DQ6 status
bits, just as in the standard program oper ation. See Write Operation Status fo r more
information.
The system must write the Program Resume command, specifying the Bank addresses of
the Program-Suspended Block, to exit the Program Suspend mode and to continue the
programming operation.
Further issuing of the Resume command is ignored. Another Program Suspend command
can be written after the device has resumed programming.
Command interface M29DW128F
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6.1.11 Program command
The Prog ram command can be used to prog ram a v alue to one address in the memory arra y
at a time . The command r equires f our Bus Write oper ations, the final Write operation lat ches
the address and data in the internal state machine and starts the Program/Erase Controller.
Programming can be suspended and t hen resumed by issuing a Program Suspend
command and a Program Resume command, respectively (see Section 6.1.9: Program
Suspend command and Section 6.1.10: Program Resume command paragraphs).
If the address falls in a protected block then the Program command is ignored, the data
remains unchanged. The Status Register is never read and no error condition is given.
After prog ramming has started, Bus Read oper ations in the Bank be ing prog ra mmed output
the Status Register content, while Bus Read operations to the other Bank output the
contents of the memory array. See the section on the Sta tus Register for more details.
Typical program times are given in Table 18.
After the progr am operation has completed the memory will return to the Read mode , unless
an error has occurred. When an error occurs Bus Read operations to the Bank where the
command was issued will continue to output the Status Register. A Read/Reset command
must be issued to reset the error condition and return to Read mode.
One of the Erase Commands must be used to set all the bits in a block or in the whole
memory from ’0’ to ’1’.
M29DW128F Command interface
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Table 11. Standard Commands, 8-bit mode(1)(2)
Command
Length
Bus operations
1st 2nd 3rd 4th 5th 6th
Add Data Add Data Add Data Add Data Add Data Add Data
Read/Reset 1X F0
3 AAA AA 555 55 X F0
Auto
Select
Manufacturer Code
3 AAA AA 555 55 (BKA)
AAA 90 (3) (3)
Device Code
Extended Block Protection
Indicator
Block Protection Status
Program 4 AAA AA 555 55 AAA A0 PA PD
Blank Verify Command 3 AAA AA 555 55 BA BC
Verify 3 AAA AA 555 55 BA BC
Chip Erase 6 AAA AA 555 55 AAA 80 AAA AA 555 55 AAA 10
Block Erase 6
+AAA AA 555 55 AAA 80 AAA AA 555 55 BA 30
Erase/Program Suspend 1 BKA B0
Erase/Program Resume 1 BKA 30
Read CFI Quer y 1 (BKA)
AAA 98
1. Grey cells represent Read cycles. The other cells are Write cycles.
2. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address. All values in the
table are in hexadecimal.
3. The Auto Select addresses and data are given in Table 4: Read Electronic Signature, 8-bit mode, and Table 5: Block
Protection, 8-bit mode, except for A9 that is ‘Don’t Care’.
Command interface M29DW128F
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Table 12. Standard Commands, 16-bit mode(1)(2)
Command
Length
Bus operations
1st 2nd 3rd 4th 5th 6th
Add Data Add Data Add Data Add Data Add Data Add Data
Read/Reset 1XF0
3 555 AA 2AA 55 X F0
Auto Select
Manufacturer Code
3 555 AA 2AA 55 (BKA)
555 90 (3) (3)
Device Code
Extended Block
Protection Indicator
Block Protection Status
Program 4 555 AA 2AA 55 555 A0 PA PD
Blank Verify Command 3 555 AA 2AA 55 BA BC
Verify 3 555 AA 2AA 55 BA BC
Chip Erase 6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10
Block Erase 6+ 555 AA 2AA 55 555 80 555 AA 2AA 55 BA 30
Erase/Program Suspend 1 BKA B0
Erase/Program Resume 1 BKA 30
Read CFI Quer y 1 (BKA)
555 98
1. Grey cells represent Read cycles. The other cells are Write cycles.
2. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address. All values in the
table are in hexadecimal.
3. The Auto Select addresses and data are given in Table 7: Read Electronic Signature, 16-bit mode, and Table 8: Block
Protection, 16-bit mode, except for A9 that is ‘Don’t Care’.
M29DW128F Command interface
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6.2 Fast Program commands
The M29DW128F offers a set of Fast Program commands to improve the programming
throughput:
●Write to Bu ffer and Program
●Double and Quadruple Word, Progr am
●Double, Quadruple and Octuple Byte Prog ram
●Unlock Bypass.
See either Table 14, or Table 13, depending on the conf iguration that is being used, for a
summary of the Fast Program commands.
When VPPH is applied to the VPP/ Write Protect pin the memory automatically enters the F ast
Program mode. The user can then choose to issue any of the Fast Program commands.
Care must be taken because applying a VPPH to the VPP/WP pin will temporarily unprotec t
any protected block.
Only one bank can be prog r amm ed at an y one t ime . The other ba nk mu st be in Read mod e
or Erase Suspend.
After prog ramming has started, Bus Read oper ations in the Bank be ing prog ra mmed output
the Status Register content, while Bus Read operations to the other Bank output the
contents of the me mory array. Fast program commands can be suspended and then
resumed by issuing a Program Suspend command and a Program Resume command,
respectively (see Section 6.1.9: Program Suspend command and Section 6.1.10: Program
Resume command paragraphs.)
After the fast program operation has completed, the memory will return to the Read mode,
unless an error has occurred. When an error occurs Bus Read operations to the Bank
where the command was issued will continue to output the Status Register. A Read/Reset
command must be issued to reset the error condition and return to Read mode. One of th e
Erase Commands m ust be used to set all the bit s in a b loc k or in the whole memory from ’0’
to ’1’.
Typical Program times are given in Table 18: Program, Erase Times and Program, Erase
Endurance Cycles.
Command interface M29DW128F
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6.2.1 Write to Buffer and Program command
The Write to Buffer and Program Command makes use of the device’s 64-byte Write Buffer
to speed up programming. 32 Words/64 bytes can be loaded into the Write Buffer. Each
Write Buffer has the same A5-A22 addresses.The Write to Buffer and Program command
dramatically reduces system programming time compared to the standard non-buffered
Program command.
When issuing a Write to Buffer and Program command, the VPP/WP pin can be either held
High, VIH or raised to VPPH.
See Table 18 for det ails on typical Write to Buffer and Program times in both cases.
Five successive steps are required to issue the Write to Buffer and Program command:
1. The Write to Buff er and Program command starts with two unlock cycles.
2. The third Bus Write cycle sets up the Write to Buff er and Progr am command. The setup
code can be addressed to any location within the targeted bl ock.
3. The fourth Bus Write cycle sets up the number of Words/bytes to be programmed.
Value N is written to the same bloc k address , where N+1 is the number of Words/bytes
to be programmed. N+1 must not exceed the size of the Write Buffer or the operation
will abort.
4. The fifth cycle loads the first address and data to be progra mmed.
5. Use N Bus Write cycles to load the address and data for each Word/bytes into the
Write Buff er. Addresses must lie within the range from the start address+1 to the start
address + N- 1. Opt i m um p er formance is obtained when the st art address corresponds
to a 64 b yte boundary. If the start address is not aligned to a 64 b yte bou ndary, the total
programming time is doubled.
All the addresses used in the Write to Buffer and Program operation must lie within the
same page.
To program the content of the Write Buffer, this command must be followed by a Write to
Buffer and Program Confir m command.
If an address is written several times during a Write to Buffer and Program operation, the
address/data counter will be decremented at each data load operation and the data will be
programmed to the last word loaded into the Buffer.
Invalid address combinations or failing to follow the correct sequence of Bus Write cycles
will abort the Write to Buffer and Program.
The Status Register bits DQ1, DQ5, DQ6, DQ7 can be used to monitor the device status
during a Write to Buffer and Program operation.
If is not possib le to d etect Progr am oper ation f ails whe n changing prog rammed d ata from ‘0’
to ‘1’, that is when reprogramming data in a portion of memory already programmed. The
resulting data will be the logical OR between the previous value and the current value.
A Write to Buff er and Prog ram Abort and Reset command mu st be issued to ab ort the Write
to Buffer and Program operat ion and reset the device in Read mode.
During Write to Buffer and Program operations, the bank being progr ammed will accept
Program/Erase Suspe nd commands.
See Appendix E, Figure 27: Write to Buffer and Program flowchart and Pseudo Code, for a
suggested flowchart on using the Write to Buffer and Program command.
M29DW128F Command interface
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6.2.2 Write to Buffer and Program Confirm command
The Write to Buff er an d Progr am Co nfirm command is used to confirm a Write to Buff er and
Program command and to program the N+1 Words/bytes loaded in the Write Buffer by this
command.
6.2.3 Write to Buffer and Pr ogram Abort and Reset command
The Write to Buff er and Pro gr am Abort and Reset command is used to abort Write to Buffer
and Program command.
6.2.4 Double Word Program command
This is used to write tw o adjacent W o rds in x16 mode , sim ultaneously. The add resses of the
two Words must differ only in A0.
Three bus write cycles are necessary to issue the command:
1. The first bus cycle sets up the command.
2. The second bus cycle latches the Address and the Data of the first Word to be written.
3. The third bus cycle latches the Address and the Data of the second Word to be written
and starts the Program/Erase Controller.
6.2.5 Quadruple Word Program command
This is used to write a page of four adjacent Words, in x16 mo de, simultaneously. The
addresses of the four Words must differ only in A1 and A0.
Fiv e bus write cycles are necessary to issue the command:
1. The first bus cycle sets up the command.
2. The second bus cycle latches the Address and the Data of the first Word to be written.
3. The third bus cycle latches the Address and the Data of the second W o rd to be written.
4. The fourth bus cycle latches the Address and the Data of the third Word to be written.
5. The fifth bus cycle latches the Address and the Data of the fourth Word to be written
and starts the Program/Erase Controller.
6.2.6 Double byte Program Command
This is used to write two adjacent bytes in x8 mode, simultaneously. The addresses of the
two bytes must differ only in DQ15A-1.
Three bus write cycles are necessary to issue the command:
1. The first bus cycle sets up the command.
2. The second bus cycle latches the Addre ss and the Data of the first byte to be written.
3. The third bus cycle latches the Address and the Data of the second byte to be written
and starts the Program/Erase Controller.
Command interface M29DW128F
38/94
6.2.7 Quadruple byte Program command
This is used to write fo ur adjacent bytes in x8 mode, simultaneously. The addresses of the
four bytes must differ only in A0, DQ15A-1.
Fiv e bus write cycles are necessary to issue the command.
1. The first bus cycle sets up the command.
2. The second bus cycle latches the Addre ss and the Data of the first byte to be written.
3. The third bus cycle latches the Address and the Data of the second byte to be written.
4. The fourth bus cycle latches the Address and the Data of the third byte to be written.
5. The fifth b us cycle latches t he Address and the Data of the fourth byte to be written and
starts the Program/Erase Controller.
6.2.8 Octuple byte Program command
This is used to write eight adjacent byte s, in x8 mode , simu ltaneously. The add resses of the
eight bytes must differ only in A1, A0 and DQ15A-1.
Nine bus write cycles are necessary to issue the command:
1. The first bus cycle sets up the command.
2. The second bus cycle latches the Addre ss and the Data of the first byte to be written.
3. The third bus cycle latches the Address and the Data of the second byte to be written.
4. The fourth bus cycle latches the Address and the Data of the third byte to be written.
5. The fifth bus cycle latches the Address and the Data of the fourth byte to be written.
6. The sixth bus cycle latches the Address and the Data of the fifth byte to be written.
7. The seventh bus cycle latches the Address and the Data of the sixth byte to be written.
8. The eighth bus cycle latches the Address and the Data of the sevent h byte to be
written.
9. The ninth bus cycle latches the Address and the Data of the eighth byte to be written
and starts the Program/Erase Controller.
6.2.9 Unlock Bypass command
The Unloc k Bypass command is used in conjunction with the Unlock Bypass Program
command to prog ram the memory f aster t ha n with t he stand ar d p rog ram commands . When
the cycle time to the device is long, considerable time saving can be made by using these
commands. Thr ee Bus Write oper at ions ar e requir ed to issue t he Unlock Bypass command.
Once the Unlock Bypass command has b een issued t he bank e nt ers Unlo ck Bypass mode.
When in Unlock Bypass mode, only the Unlock Bypass Program and Unlock Bypass Reset
commands are v alid. The Unloc k Bypass Pr ogram comm and can then be issued t o progr am
addresses within the bank, or the Unlock Bypass Reset command can be issued to return
the bank to Read mode. In Unlock Bypass mode the memory can be read as if in Read
mode.
M29DW128F Command interface
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6.2.10 Unlock Bypass Program command
The Unlock Bypass Program command can be used to program one address in the memory array at a
time. The command requires two Bus Write operations, the final write operation latches the address and
data and starts the Program/Erase Controller.
The Program operation using the Unlock Bypass Program command behaves identically to the Program
operation using the Program command. The operation cannot be aborted, a Bus Read operation to the
Bank where the command w as issued outputs t he Status Register . See the Progr am command f or details
on the behavior.
6.2.11 Unlock Bypass Reset command
The Unloc k Bypass Reset command can be used to return to Read/Reset mode from Unlock Bypass
mode. Two Bus Write operations are required to issue the Unlock Bypass Reset command. Read/Reset
command does not exit from Unlock Bypass mode.
Table 13. Fast Program Commands, 8-bit mode(1)
Command
Length
Bus Write operations
1st 2nd 3rd 4th 5th 6th 7th 8th 9th
Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data
Write to Bu ffer
and Program
N
+
5AAA AA 555 55 BA 25 BA N(2) PA
(3) PD WBL
(4) PD
Write to Bu ffer
and Program
Abort and
Reset
3 AAA AA 555 55 AAA F0
Write to Bu ffer
and Program
Confirm 1BA
(5) 29
Double byte
Program 3 AAA 50 PA0 PD0 PA1 PD1
Quadruple byte
Program 5 AAA 56 PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3
Octuple byte
Program 9 AAA 8B PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3 PA4 PD4 PA5 PD5 PA6 PD6 PA7 PD7
Unlock Bypass 3 AAA AA 555 55 AAA 20
Unlock Bypass
Program 2X A0PAPD
Unlock Bypass
Reset 2X 90 X 00
1. X Don’t Care, PA Program Addr ess, PD Program Data, BA Any address in the Block, BKA Bank Address, WBL Write Buffer Location. All
values in the table are in hexadecimal.
2. The maximum number of cycles in the co mmand sequence is 68. N+1 is the number of bytes to be programmed during the Write to Buffer
and Program operation.
3. Each buffer has the same A5-A22 addresses. A0-A4 and A-1 are used to select a byte within the N+1 byte page.
4. The 6th cycle has to be issued N time. WBL scans the byte inside the page.
5. BA must be identical to the address loaded during the Write to buffer and Program 3rd and 4th cycles.
Command interface M29DW128F
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Table 14. Fast Program Commands, 16-bit mode(1)
Command
Length
Bus Write operations
1st 2nd 3rd 4th 5th 6th
Add Data Add Data Add Data Add Data Add Data Add Data
Write to Buff er and Program N+
5555 AA 2AA 55 BA 25 BA N(2) PA(3) PD WBL
(4) PD
Write to Buff er and Program Abort and
Reset 3 555 AA 2AA 55 555 F0
Write to Buffer and Program Confirm 1 BA(5) 29
Double Word Program 3 555 50 PA0 PD0 PA1 PD1
Quadruple Word Program 5 555 56 PA0 PD0 PA1 P D1 PA2 PD2 PA3 PD3
Unlock Bypass 3 555 AA 2AA 55 555 20
Unlock Bypass Program 2 X A0 PA PD
Unlock Bypass Reset 2 X 90 X 00
1. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address, WBL Write
Buffer Location. All values in the table are in hexadecimal.
2. The maximum number of cycles in the command sequence is 36. N+1 is the number of Words to be programmed during
the Write to Buffer and Program operation.
3. Each buffer has the same A5-A22 addresses. A0-A4 are used to select a Word within the N+1 Word page.
4. The 6th cycle has to be issued N time. WBL scans the Word inside the page.
5. BA must be identical to the address loaded during the Write to buffer and Program 3rd and 4th cycles.
M29DW128F Command interface
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6.3 Block Protection commands
Blocks or groups of blocks can be protected against accidental program, erase or read
operations. The Protection Groups are shown in Appendix A, Table 34: Block Addresses
and Protection Gr oups. The device block protection scheme is shown in Fig u re 7: Software
Protection scheme and Figure 6: Block Protection State diagram. See either Table 15, or
Table 16, depending on the configuration that is being used, for a summary of the Block
Protection commands.
Only the commands relat ed to the Ext end ed Blo ck Protection ar e available in bo th 8 bi t a nd
16 bit memory configuration. The other block protection commands are available in 16-bit
configuration only.
6.3.1 Enter Extended Block command
The M29DW128F has one e xtra 256 -byte bloc k (Exte nded Bloc k) that can only be a ccessed
using the Enter Exten ded Block command.
Three Bus Write cycles are required to issue the Extended Block command. Once the
command has been issued the device enters the Extended Bloc k mode wher e all Bus Read
or Program operations are conducted on the Extended Block. Once the device is in the
Extended Block mode, the Extend ed Block is addressed by using the addresses occupied
by the boot blocks in the other operating modes (see Table 34: Block Addresses and
Protection Groups).
The device remains in Extended Block mode until the Exit Extended Block command is
issued or pow er is remo ved fr om the device. After pow er- up or a ha rdw are r eset, the device
rever ts to the Read mode where commands issued to the Boot Block Address space will
address the Boot Blocks.
Note that when the device is in the Extended Block mode, the VPP/WP pin cannot be used
for fast programming and the Unlock Bypass mode is not available.
The Extended Block cannot be erased, and can be treated as one-time programmable
(OTP) memory. In Extended Block mode only array cell locations (B ank A) with the same
addresses as the Extended Block are not accessible. In Extended Block mode dual
operat ions are allowed and the Extended Block physically belongs to Bank A.
In Extended Block mode , Er ase , Chip Er ase , Er ase Suspend and Er ase resume command s
are not allowed.
To exit from the Extended Block mode the Exit Extended Block command must be issued.
The Extended Block can be protected by setting the Extended Block Protection bit to ‘1’;
however once protected the protection cannot be undon e.
6.3.2 Exit Extended Block command
The Exit Extended Block command is used to exit fr om the Extended Bloc k mode and return
the device to Read mode. Four Bus Write operations are required to issue the command.
Command interface M29DW128F
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6.3.3 Set Extended Block Protection bit command
The Set Extended Block Protection bit command programs the Extended Block Protection
bit to ‘1’ thus preventing the se cond section of the Extende d Bloc k fr om being prog r ammed.
A Read/Reset command must be issued to abort a Set Extended Block Prote ction bit
command.
Six successive steps are required to issue the Set Extended Block Protection bit command.
1. The command starts with two unlock cycles.
2. The third Bus Write cycle sets up the Set Extended Block Protection bit command.
3. The fourth Bus Write Cycle programs the Extended Block Protection bit to ‘1’.
4. The last two cycles verify the value programmed at the Extended Block Protection bit
address: if bit DQ0 of Data Inputs/Outputs is set to ’1’, it indicates that the Extended
Block Pr otection bit has been successfu lly progr ammed. If DQ0 is ‘0’, t he Set Extended
Block Prot ection bit command must be issued and verified again.
6.3.4 Verify Extended Block Protection bit command
The Verify Extended Block Protection bit command reads the status of the Extended Block
Protection bit on bit DQ0 of the Dat a Inpu ts/ Outpu ts. If DQ0 is ‘1’, the second section of the
Extended Block is protected from program opera tions.
6.3.5 Password Program command
The Password Program Command is used to program the 64-bit Password used in
Password Protection mode.
Four cycles are required to program the Password:
1. The first two cycles are unlock cycles.
2. The third cycle issu es the Pa ssword Program command.
3. The fourth cycle inputs the 16-bit data required to program the Password.
To program the 64-bit Password, the complete command sequence must be entered fou r
times at four consecut ive addresses selected by A1 to A0.
Read operations can be used to read the Status Register during a Password Program
operation. All other operations are forbidden.
The Password can be checked b y issuing a Password Verify command.
Once Passw ord Program operation ha s completed, a Read/ Reset command must be
issued to return the device to Read mode. The Password Protection mode can then be
selected.
By default, all Password bits are set to ‘1’.
M29DW128F Command interface
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6.3.6 Password Verify command
The P ass w ord Verify Command is used to verify the Password used in Password Protection
mode. To verify the 64-bit Password, the complete command sequence must be entered
four times at four consecutive addresses selected by A1 to A0. If the Password Mode
Locking bit is programmed and the user attempts to verify the Password, the device will
output all F’s onto the I/O data bus. The Password is output regardless of the bank address.
The user must issue a Read/reset command to return the device to Read mode.
Dual operations are not allo wed during a Password Verify operation.
6.3.7 Password Protection Unlock command
The Password Prot ection Unlock command is used to clear the Lock-Down bit in order to
unprotect all Non-Volatile Modify Protection bits when the device is in Password Protection
mode. The Password Protectio n Unlock command must be issued along with the correct
Password.
The complete command sequence must be entered for each 16 bits of the Password.
There must be a 2µs de lay between successive Password Protection Unlock commands in
order to prevent hackers fr om cracking the Password b y trying all possible 64-bit
combinations. If this delay is not respected, the latest command will be ignored.
6.3.8 Set Passwor d Protection mode command
The Set Passw ord Protec tion Mode command puts the device in P ass word Protection mo de
by progr amming the Passwo rd Protection Mode Loc k bit to ‘1’. This command can be issued
either with the Reset/Block Temporary Unprotect pin, RP, at VID or at VIH.
Six cycles are required to issue a Set Password Protection Mode command:
1. The first two cycles are unlock cycles.
2. The third cycle issu es the command.
3. The fourth and fifth cycles select the address (see Table 34).
4. The last cycle verifies if the operation has bee n successful. If DQ0 is set to ’1’, the
device has successfully entered the Password Protection mode. If DQ0 is ‘0’, the
operation has failed and the command must be re-issued.
There must be a 100µs delay between the fourth and fifth cycles.
Once the Password Protection mode is activated the device will permanently remain in this
mode.
6.3.9 Verify Password Protection mode command
The Verify Password Protection Mode comm and reads the status of the Password
Protection Mode Lock bit. If it is ‘1’, the device is in Password Protection mode.
Command interface M29DW128F
44/94
6.3.10 Set Standard Protection mode command
The Set Standard Protection Mode command puts the device in Standard Protection mode
by programming the Standard Protection Mode Lock bit to ‘1’.
Six cycles are required to issue the Standard Protection Mode command:
1. The first two cycles are unlock cycles.
2. The third cycle issu es the program command.
3. The fourth and fifth cycles select the address (see Table 34).
4. The last cycle verifies if the operation has bee n successful. If DQ0 is set to ’1’, the
Standard Protection Mode has been successfully activated. If DQ0 is ‘0’, the operation
has failed and the command must be re-issued.
There must be a 100µs delay between the fourth and fifth cycles.
Once the Standard Protection mode is activated the device will permanently remain in this
mode.
6.3.11 Verify Standard Protection mode command
The Verify Standar d Protect ion Mod e comman d reads t he statu s of t he Stand ard Prot ection
Mode Lock bit. If it is ‘1’, the device is in Standard Protection mode.
6.3.12 Set Non-Volatile Modify Protection bit command
A bl ock or group of blocks can be protected from program or erase by issuing a Set Non-
Volatile Modify Protection bit command along with the block address. This command sets
the Non-Volatile Modify Protection bit to ‘1’ for a given block or group of blocks.
Six cycles are required to issue the command:
1. The first two cycles are unlock cycles.
2. The third cycle issu es the program command.
3. The fourth and fifth cycles select the address (see Table 34).
4. The last cycle verifies if the operation has been successful. If DQ0 is set to ’1’, the Non-
Volatile Modify Protection bit has been successfully programmed. If DQ0 is ‘0’, the
operation has failed and the command must be re-issued.
There must be a 100µs delay between the fourth and fifth cycles.
The Non-Volatile Modify Protection bits are erased simultaneously by issuing a Clear Non-
Volatile Modify Protection bits command except if the Lock-Down bit is set to ‘1’.
The Non-Volatile Modify Protection bits can be set a maximum of 100 times.
6.3.13 Verify Non-Volatile Modify Protection bit command
The status of a Non-Volatile Modify Pro tection bit for a given bloc k or g roup of bloc ks can be
read by issuing a Verify Non-Volatile Modify Protection Bit command al ong with the block
address.
M29DW128F Command interface
45/94
6.3.14 Clear Non-Volatile Modify Protection bits command
This command is used to clear all Non-Volatile Modify Protection bits. No specific block
address is required. If the Lock-Down bit is set to ‘1’, the command will fail.
Six cycles are required to issue a Clear Non-Volatile Modify Protection bits command:
1. The first two cycles are unlock cycles.
2. The third cycle issu es the command.
3. The last three cycles verify if the operation has been successful. If DQ0 is set to ’0’, all
Non-Volatile Modify Protection bits have been successfully cleared. If DQ0 is ‘1’, the
operation has failed and the command must be re-issued.
There must be a 12ms delay between the fourth and fifth cycles.
6.3.15 Set Lock bit command
The Set Lock bit command individually sets the Lock bit to ‘1’ for a given block or group of
blocks.
If the Non-Volatile Lock bit for the same block or group of blocks is set, the block is locked
regardless of the value of the Lock bit. (see Table 10: Block Protection status).
6.3.16 Clear Lock bit command
The Clear Lock bit command individually clea rs (sets to ‘0’) the Loc k bit for a given block or
grou p of blocks.
If the Non-Volatile Lock bit for the same block or group of bloc ks is set, t he bloc k or gro up of
blocks remains locked (see Table 10: Block Protection status).
6.3.17 Verify Lock bit command
The status of a Lock bit for a given block can be read by issuing a Verify Lock bit command
along with the block address.
6.3.18 Set Lock-Down bit command
This command is used to set the Loc k-Down b it to ‘1’ thus protecting the Non-Volatile Modify
Protection bits from program and erase.
There is no Unprotect Lock-Down bit command.
6.3.19 Verify Lock-Down bit command
This command is used to read the status of the Lock-Down bit. The status is output on bit
DQ1. If DQ1 is ‘1’, all the Non-Volatile Modify Protection bits are protected from program or
erase operations.
Command interface M29DW128F
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Table 15. Block Protection Commands, 8-bit mode(1)(2)
Command
Length
Bus operations
1st 2nd 3rd 4th 5th 6th
Add Data Add Data Add Data Add Data Add Data Add Data
Set Extended Block Protection bit 6 AAA AA 555 55 AAA 60 OW 68 OW
(3) 48 OW DQ0
Verify Extended Block Protection
bit 4 AAA AA 555 55 AAA 60 OW DQ0
Enter Extended Block 3 AAA AA 555 55 AAA 88
Exit Extended Block 4 AAA AA 555 55 AAA 90 X 00
1. OW Extended Block Protection bit Address (A7-A0=’00011010’), X Don’t Care. All values in the table are in hexadecimal.
2. Grey cells represent Read cycles. The other cells are Write cycles.
3. A 100µs timeout is required between cycles 4 and 5.
Table 16. Block Protection Commands, 16-bit mode (1)(2)(3)(4)
Command
Length
Bus operations
1st 2nd 3rd 4th 5th 6th 7th
Add Data Add Data Add Data Add Data Add Data Add Data Add Data
Set Extended
Block
Protection
bit(5)(6)
6 555 AA 2AA 55 555 60 OW 68 OW 48 OW DQ0
V erify Extended
Block
Protection bit 4 555 AA 2AA 55 555 60 OW DQ0
Enter Extended
Block 3 555 AA 2AA 55 555 88
Exit Extended
Block 4 555 AA 2AA 55 555 90 X 00
Password
Program (5)(7)(8) 4 555 AA 2AA 55 555 38 X[0-3] PW
[0-3]
Password
Verify(8)(9) 4 555 AA 2AA 55 555 C8 PWA
[0-3] RPW
[0-3]
Password
Protection
Unlock(7)(10)(11) 7 555 AA 2AA 55 555 28 PWA[0] RPW[0] PWA
[1] RPW
[1] PWA
[2] RPW
[2] PWA
[3] RPW
[3]
Set Password
Protection
mode(5)(6) 6 555 AA 2AA 55 555 60 PL 68 PL 48 PL DQ0
Verify Password
Protection
mode 4 555 AA 2AA 55 555 60 PL DQ0
Set Non-
Volatile Modify
Protection bit(5)
(6)
6 555 AA 2AA 55 555 60 (BA)/
NVMP 68 (BA)/
NVMP 48 (BA)/
NVMP DQ0
M29DW128F Command interface
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Verify Non-
Volatile Modify
Protection bit 4 555 AA 2AA 55 555 60 (BA)/
NVMP 48 (BA)/
NVMP DQ0
Clear Non-
Volatile Modify
Protection
bits(12)(13)(14)
6 555 AA 2AA 55 555 60 NVMP 60 (BA)/
NVMP 40 (BA)/
NVMP DQ0
Set Lock-Down
bit 3 555 AA 2AA 55 555 78
Verify Lock-
Down bit(15) 4 555 AA 2AA 55 555 58 BA DQ1
Set Lock bit(7) 4 555 AA 2AA 55 555 48 BA X1h
Clear Lock bit(7) 4 555 AA 2AA 55 555 48 BA X0h
Verify Lock bit 4 555 AA 2AA 55 555 58 BA DQ0
Set Standard
Protection
mode(5)(6) 6 555 AA 2AA 55 555 60 SL 68 SL 48 SL DQ0
Verify Standard
Protection
mode(5) 4 555 AA 2AA 55 555 60 SL DQ0
1. Grey cells represent Read cycles. The other cells are Write cycles.
2. SA Protection Group Address, BA Any address in the Block, BKA Bank Address, SL Standard Protection Mode Lock bit
Address, PL Password Protection Mode Lock bit Address, PW Password Data, PWA Password Address, RPW Password
Data Being Verified, NVMP Non-Volatile Modify Protection bit Address, OW Extended Block Protection bit Address, X Don’t
Care. All values in the table are in hexadecimal.
3. Addresses are described in Table 34.
4. During Unlock and Command cycles, if the lower address bits are 555h or 2AAh then the address bits higher than A11
(except where BA is required) and data bits higher than DQ7 are Don't Care.
5. A Reset Command must be issued to return to the Read mode.
6. The 4th Bus Write cycle programs a protection bit (Extended Block Protection bit, Password Protection Mode Lock bit,
Standard Protection Mode Lock bit, and a block NVMP bit). The 5th and 6th cycles verify that the bit has been successively
programmed when DQ0=1. If DQ0=0 in the 6th cycle, the program command must be issued again and verified again. A
100µs delay is required between the 4th and the 5th cycle.
7. Data is latched on the rising edge of W.
8. The entire command sequence must be entered for each portion of the password.
9. The command sequence returns FFh if the Password Protection Mode locking bit is set.
10. The password is written over four consecutive cycles, at addresses [0-3]
11. A 2µs timeout is required between any two portions of the password.
12. A 10ms delay is required between the 4th and the 5th cycle.
13. A 12ms timeout is required between cycles 4 and 5.
14. Cycle 4 erases all Non-Volatile Modify Protection bits. Cycles 5 and 6 verify that the bits have been successfully cleared
when DQ0=0. If DQ0=1 in the 6th cycle, the erase command must be issued again and verified again. Before issuing the
erase command, all Non-Volatile Modify Protection bits should be programmed to prevent over erasure.
15. DQ1=1 if the Non-Volatile Modify Protection bit is locked, DQ1 = 0 if it is unlocked.
Table 16. Block Protec tion Commands, 16-bit mode (continued)(1)(2)(3)(4)
Command
Length
Bus operations
1st 2nd 3rd 4th 5th 6th 7th
Add Data Add Data Add Data Add Data Add Data Add Data Add Data
Command interface M29DW128F
48/94
Table 17. Protection Command Addresses
Bit Condition Address Inputs A7-A0 Other Address Inputs
Password Protection Mode Lock bit Address
(PL) RP at VIH 00001010 X
RP at VID 10001010 X
Standard Protection Mode Lock bit Address (SL) 00010010 X
Non-Volatile Modify Protection bit Addre s s (NVMP) 00000010 Block Protection Group
Address
Extended Block Protection bit Address (OW) 00011010 X
Table 18. Program, Erase Times and Program, Erase Endurance Cycles
Parameter Min Typ(1)(2) Max(2) Unit
Chip Erase 80 400(3) s
Block Erase (64 kbytes) 0.8 6(4) s
Erase Suspend Latency Time 50(4) µs
Byte Program
Single or Multiple byte Progr am
(1, 2, 4 or 8 by tes at-a-time) 10 200(3) µs
Write to Buffer and Program
(64 bytes at-a-time) VPP/WP =VPPH 90 700(3) µs
VPP/WP=VIH 280 1400(3) µs
Wo rd Progr am
Single or Multiple Word Program
(1, 2 or 4 Words at-a-time) 10 200(3) µs
Write to Buffer and Program
(32 Words at-a-time) VPP/WP=VPPH 90 700(3) µs
VPP/WP=VIH 280 1400(3) µs
Chip Program (byte b y byte) 80 400(3) s
Chip Program (Word by Word) 40 200(3) s
Chip Program (Quadruple b yte or Double Word) 20 100(3) s
Chip Prog ram (Octuple byte or Quadruple Word) 10 50(3) s
Program Suspend Latency Time 5 15 µs
Program/Erase Cycles (per Block) 100,000 cycles
Data Retention 20 years
1. Typical values measured at room temperature and nominal voltages.
2. Sampled, but not 100% tested.
3. Maximum value measured at worst case conditions for both temperature and VCC after 100,00 program/erase cycles.
4. Maximum value measured at worst case conditions for both temperature and VCC.
M29DW128F Status Register
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7 Status Register
The M29D W1 28F has one Status Registe r. The Status Register provides information on the
current or previous Program or Erase operations executed in each bank. The various bits
convey informatio n and errors on the operation. Bus Read operat ions from any address
within the Bank, alw ays read the St atus Register during Progr am and Er ase ope rati ons . It is
also read during Erase Suspend when an address within a block being erased is accessed.
The bits in the Status Register are summarized in Table 19: Status Register bits.
7.1 Data Polling bit (DQ7)
The Data Polling bit can be used to identify whether the Program/Erase Controller has
successfully completed its operation or if it has responded to an Erase Suspend. The Data
Polling bit is output on DQ7 when the Status Register is read.
During Program operations the Data Polling bit outputs the complement of the bit being
programmed to DQ7. After su ccessful completion of the Pro gram operation the memory
returns to Read mode and Bus Read operations from the address just programmed output
DQ7, not its complement.
During Erase operations the Data Polling bit outputs ’0’, the complement of the er ased state
of DQ7. After successful completion of the Erase operation the memory returns to Read
mode.
In Erase Suspend mode the Data Polling bit will output a ’1’ during a Bus Read operation
within a block being erased. The Data Polling bit will change from a ’0’ to a ’1’ when the
Program/Erase Controller has suspended the Erase operation.
Figure 8: Data Po lling flowchart, giv es an example of how to use t he Data Polling bit. A Valid
Address is the address bein g programmed or an address within the block being erased.
7.2 Toggle bit (DQ6)
The Toggle bit can be used to identify whether the Program/Erase Controller has
successfully completed its operation or if it has responded to an Er ase Suspend. The Toggle
bit is output on DQ6 when the Status Register is read.
During a Program/Erase operation the Toggle bit changes from ’0’ to ’1’ to ’0’, etc., with
successive Bus Read operations at any address . After successful completion of the
operation the memory returns to Read mode.
During Erase Suspend mode the Toggle bit will output when addressing a cell within a b loc k
being erased. The Toggle bit will stop toggling when the Program/Erase Controller has
suspended the Erase operation.
Figure 9: Toggle flowchart, gives an example of how to use the Data Toggle bit. Figure 16
and Figure 17 describe Toggle bit timing waveform.
Status Register M29DW128F
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7.3 Error bit (DQ5)
The Error bit can be used to identify errors detected by the Pro gram/Erase Controller. The
Error bit is set to ’1’ when a Program, Block Erase or Chip Erase operation fails to write the
correct data to the memory. If the Error bit is set a Read/Reset command must be issued
before other commands are issued. The Error bit is output on DQ5 when the Status Register
is read.
Note that the Prog ram command cannot change a bit se t to ’0 ’ back to ’1’ and att emptin g t o
do so will set DQ5 to ‘1’. A Bus Read operation to that address will show the bit is still ‘0’.
One of the Erase commands must be used to set all the bits in a block or in the whole
memory from ’0’ to ’1’.
7.4 Erase Timer bit (DQ3)
The Erase Timer bit can be used to identify the start of Program/Erase Controller operation
during a Bloc k Erase command. Once the Program/Erase Controller starts erasing the
Erase Timer bit is set to ’1’. Before the Program/Erase Controller starts the Erase Timer bit
is set to ’0’ and additional blocks to be erased may be written to the Command Interface.
The Erase Timer bi t is output on DQ3 when the Status Register is read.
7.5 Alternative Toggle bit (DQ2)
The Alternative Toggle bit can be used to monitor the Progr am/Erase controller during Erase
operations. The Alternative Toggle bit is output on DQ2 when the Status Register is read.
During Chip Erase and Block Erase opera tions the Toggle bit changes from ’0’ to ’1’ to ’0’,
etc., with successiv e Bus Read operations from ad dresses within the b locks being er ased. A
protected block is treated the same as a block not being erased. Once the operation
completes the memory returns to Read mode.
During Erase Suspend the Alternative Toggle bit changes from ’0’ to ’1’ to ’0’, etc. with
successive Bus Read ope r at ion s f rom addre sses within the blocks being erased. Bu s Read
operat ions to addresses within bloc ks not being er ased will output the mem ory arra y data as
if in Read mode.
After an Erase operation that causes the Error bit to be set, the Alternativ e Toggle bit can be
used to identify which block or blocks have caused the error. The Alternative Toggle bit
changes from ’0’ to ’1’ to ’0’, etc. with successive Bus Read Operations from addresses
within blocks that have not erased correctly. The Alternative Toggle bit does not change if
the addressed block has erased correctly.
Figure 16 and Figure 17 describe Alternative Toggle bit timing waveform.
7.6 Write to Buffer and Program Abort bit (DQ1)
The Write to Buffer and Progr am Abort bit, DQ1, is set to ‘1’ when a Write to Buffer and
Program operation aborts. The Write to Buffer and Program Abort and Reset command
must be issued to return the device to Read mode (see Write to Buffer and Program in
COMMANDS section).
M29DW128F Status Register
51/94
Figure 8. Data Polling flowchart
Table 19. Status Register bits(1)(2)
Operation Address DQ7 DQ6 DQ5 DQ3 DQ2 DQ1 RB
Program Bank Address DQ7 Toggle 0 – – 0 0
Program During Erase
Suspend Bank Address DQ7 Toggle 0 – – – 0
Write to Buffer and
Program Abort Bank Address DQ7 Toggle 0 – – 1 0
Program Error Bank Address DQ7 Toggle 1 – – – Hi-Z
Chip Erase Any Address 0 Toggle 0 1 Toggle – 0
Block Erase before
timeout Erasing Block 0 Toggle 0 0 Toggle – 0
Non-Erasing Block 0 Toggle 0 0 No Toggle – 0
Block Erase Erasing Block 0 Toggle 0 1 Toggle – 0
Non-Erasing Block 0 Toggle 0 1 No Toggle – 0
Erase Suspend Erasing Block 1 No Toggle 0 – Toggle – Hi-Z
Non-Erasing Block Data read as normal – Hi-Z
Erase Error Good Block Address 0 Toggle 1 1 No Toggle – Hi-Z
Faulty Block Address 0 Toggle 1 1 Toggle – Hi-Z
1. Unspecified data bits should be ignored.
2. Figure 16 and Figure 17 describe Toggle and Alternative Toggle bits timing waveforms.
READ DQ5 & DQ7
at VALID ADDRESS
START
READ DQ7
at VALID ADDRESS
FAIL PASS
AI07760
DQ7
=
DATA YES
NO
YES
NO
DQ5 = 1
DQ7
=
DATA YES
NO
Status Register M29DW128F
52/94
Figure 9. Toggle flowchart
1. BA = Address of Bank being Programmed or Erased.
READ DQ6
ADDRESS = BA
START
READ DQ6
TWICE
ADDRESS = BA
FAIL PASS
AI08929b
DQ6
=
TOGGLE NO
NO
YES
YES
DQ5
= 1
NO
YES
DQ6
=
TOGGLE
READ
DQ5 & DQ6
ADDRESS = BA
M29DW128F Dual Operations and Multiple Bank architecture
53/94
8 Dual Operations and Multiple Bank architecture
The Multiple Bank Architecture of the M29D W128F giv es greater fle xibility fo r software de v elopers to split
the code and data spaces within the memory array. The Dual Operations feature simplifies the software
management of the device by allowing code to be executed from one bank while another bank is being
programmed or erased.
The Dual Oper at ions feature means that while programming or erasing in one ban k, rea d ope r at ion s ar e
possible in another bank with zero latency.
Only one bank at a time is allowed to be in program or erase mode. However, certain commands can
cross bank bou ndaries, which me ans that during an o peration only the banks that ar e not concerned with
the cross bank operation are available for dual oper ations. For example, if a Block Erase command is
issued to erase blocks in both Bank A and Bank B, then only Banks C or D are available for read
operat ions while the erase is being executed.
If a read operation is required in a ba nk, which is programming or erasing, the program or erase
operation can be suspended.
Also if the suspen ded ope ration w as er a se then a p rogram command ca n be issued to anoth er block, so
the de vice can ha ve on e bloc k in Erase Suspend mod e, one prog ramming and ot her banks in read mode .
By using a combination of these features, read operations are possible at any moment.
Table 20 and Table 21 show the dual operations possib le in other banks and in the same bank. Note that
only the commonly used comma nds are represented in these t ables.
Table 20. Dual Operations allowed in other Banks(1)
Status of Bank
Commands allo wed in an oth e r bank
Read/
Reset
Read
Status
Register(2)
Read CFI
Query Auto
Select Program Erase Program/
Erase
Suspend
Program/
Erase
Resume
Idle Yes Yes(3) Yes Yes Yes Yes Yes(3) Yes(4)
Programming Yes No No No – – No No
Erasing Yes No No No – – No No
Program Suspended Yes No Yes Yes No No - Yes(5)
Erase Suspended Yes No Yes Yes Yes No - Yes(6)
1. If several banks are involved in a program or erase operation, then only the banks that are not concerned with the
operation are available for dual operations.
2. Read Status Register is not a command. The Status Register can be read during a block program or erase operation.
3. Only after a program or erase operation in that bank.
4. Only after a Program or Erase Suspend command in that bank.
5. Only a Program Resume is allowed if the bank wa s previously in Program Suspend mode.
6. Only an Erase Resume is allowed if the bank was previously in Erase Suspend mode.
Dual Operations and Multiple Bank architecture M29DW128F
54/94
Table 21. Dual Operations allowed in same Bank
Status of Bank
Commands allowed in same Bank
Read/
Reset
Read
Status
Register
(1)
Read CFI
Query Auto
Select Program Erase Program/
Erase
Suspend
Program/
Erase
Resume
Idle Yes Yes Yes Yes Yes Yes Yes(2) Yes(3)
Programming No Yes No No – – Yes(4) –
Erasing No Yes No No – No Yes(5) –
Program
Suspended Yes(6) No Yes Yes No – – Yes
Erase Suspended Yes(6) Yes(7) Yes Yes Yes(6) No – Yes
1. Read Status Register is not a command. The Status Register can be read by addressing the block being programmed or
erased.
2. Only after a program or erase operation in that bank.
3. Only after a Program or Erase Suspend command in that bank.
4. Only a Program Suspend.
5. Only an Erase suspend.
6. Not allowed in the Block or Word that is being erased or programmed.
7. The Status Register can be read by addressing the block being erase suspended.
M29DW128F Maximum rating
55/94
9 Maximum rating
Stressing the device above the rating listed in the Absolute Maximum Ratings table may
cause permanent damage to the device. Exposure to Absolute Maximum Rating conditions
for extended periods may affect device reliability. These are stress ratings only and
operation of the device at these or any other conditions above those indicated in the
Operating sections of this specification is not implied. Re fer also to the STMicroelectronics
SURE Program and other relevant quality docu ments.
Table 22. Absolute maximum ratings
Symbol Parameter Min Max Unit
TBIAS Temperature Under Bias –50 125 °C
TSTG Storage Temperature –65 150 °C
VIO Input or Output voltage (1)(2)
1. Minimum voltage may undershoot to –2V during transition and for less than 20ns during transitions.
2. Maximum voltage may overshoot to VCC +2V during transition and for less than 20ns during transitions.
–0.6 VCC +0.6 V
VCC Supply voltage –0.6 4 V
VID Identification voltage –0.6 13.5 V
VPP(3)
3. VPP must not remain at 12V for more than a total of 80hrs.
Program v oltage –0.6 13.5 V
DC and AC parameters M29DW128F
56/94
10 DC and AC parameters
This section summarizes the operating measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC characteristics Tables th at
follow, are derived from tests performed under the Measurement Conditions summarized in
Table 23: Operating and A C measurement conditions. Design er s sho u ld che ck that the
operat ing conditions in their circuit match the operating conditions when relying on the
quoted parameters.
Figure 10. AC measurement I/O waveform
Figure 11. AC measurement Load Cir cuit
Table 23. Operating and AC measurement conditions
Parameter
M29DW128F
Unit60 70
Min Max Min Max
VCC supply voltage 2.7 3.6 2.7 3.6 V
Ambient Operating Temperature –40 85 –40 85 °C
Load capacitance (CL)3030pF
Input Rise and Fall Times 10 10 ns
Input pulse voltages 0 to VCC 0 to VCC V
Input and Output Timing Ref. voltages VCC/2 VCC/2 V
AI05557
VCC
0V
VCC/2
AI05558
CL
CL includes JIG capacitance
DEVICE
UNDER
TEST
25kΩ
VCC
25kΩ
VCC
0.1µF
VPP
0.1µF
M29DW128F DC and AC parameters
57/94
Table 24. Device capacitance
Symbol Parameter Test condition Min Max(1) Unit
CIN Input capacitance VIN = 0V 6 pF
COUT Output capacitance VOUT = 0V 12 pF
1. Sampled only, not 100% tested.
Table 25. DC Characteristics
Symbol Parameter Test condition Min Ma x Unit
ILI Input Leakage Current 0 V ≤ VIN ≤ VCC ±1 µA
ILO Output Leakage Current 0V ≤ VOUT ≤ VCC ±1 µA
ICC1(1) Supply Current (Read) E = VIL, G = VIH,
f = 6MHz 10 mA
ICC2 Supply Current (Standby) E = VCC ±0.2V,
RP = VCC ±0.2V 100 µA
ICC3(1)(2) Supply Current
(Program/Erase) Program/Erase
Controller active
VPP/WP =
VIL or VIH 20 mA
VPP/WP =
VPPH 20 mA
VIL Input Low voltage –0.5 0.8 V
VIH Input High voltage 0.7VCC VCC +0.3 V
VPPH Voltage for VPP/WP Program
Acceleration VCC = 2.7V ±10% 11.5 12.5 V
IPP Current for VPP/WP Program
Acceleration VCC =2.7V ±10% 15 mA
VOL Output Low voltage IOL = 1.8mA 0. 45 V
VOH Output High voltage IOH = –100µAV
CC –0.4 V
VID Identification voltage 11.5 12.5 V
VLKO Program/Erase Lockout supply
voltage 1.8 2.3 V
1. In Dual operations the Supply Current will be the sum of ICC1(read) and ICC3 (program/erase).
2. Sampled only, not 100% tested.
DC and AC parameters M29DW128F
58/94
Figure 12. Random Read AC wavef o rms
AI08970
tAVAV
tAVQV tAXQX
tELQX tEHQZ
tGLQV
tGLQX tGHQX
VALID
A0-A22/
A–1
G
DQ0-DQ7/
DQ8-DQ15
E
tELQV tEHQX
tGHQZ
VALID
tBHQV
tELBL/tELBH tBLQZ
BYTE
M29DW128F DC and AC parameters
59/94
Figure 13. Page Read AC waveforms
AI08971c
tEHQZ
tGHQX
VALID
A3-A22
A-1
G
DQ0-DQ15
E
tELQV tEHQX
tGHQZ
VALID
A0-A2 VALID VALID VALID VALID
VALID VALID VALID
tGLQV
tAVQV
tAVQV1
VALID VALID VALID VALID
VALID VALID VALID VALID
DC and AC parameters M29DW128F
60/94
Table 26. Read A C characteristics
Symbol Alt Parameter Test condition M29DW128F Unit
60 70
tAVAV tRC Address Valid to Next Address Valid E = VIL,
G = VIL Min 60 70 ns
tAVQV tACC Address Valid to Output Valid E = VIL,
G = VIL Max 60 70 ns
tAVQV1 tPAGE Address Valid to Output Valid (Page) E = VIL,
G = VIL Max 25 30 ns
tELQX(1) tLZ Chip Enable Low to Output Transition G = VIL Min 0 0 ns
tELQV tCE Chip Enable Low to Output Valid G = VIL Max 60 70 ns
tGLQX(1) tOLZ Output Enab le Low to Output
Transition E = VIL Min 0 0 ns
tGLQV tOE Output Enable Low to Output Valid E = VIL Max 20 25 ns
tEHQZ(1) tHZ Chip Enable High to Output Hi-Z G = VIL Max 25 25 ns
tGHQZ(1) tDF Output Enable High to Output Hi-Z E = VIL Max 25 25 ns
tEHQX
tGHQX
tAXQX
tOH Chip Enable, Output Enable or
Address Transition to Output Transition Min 0 0 ns
tELBL
tELBH
tELFL
tELFH Chip Enable to BYTE Low or High(2) Max 5 5 ns
tBLQZ tFLQZ BYTE Low to Output Hi-Z(2) Max 25 25 ns
tBHQV tFHQV BYTE High to Output Valid(2) Max 30 30 ns
1. Sampled only, not 100% tested.
2. TSOP56 package only.
M29DW128F DC and AC parameters
61/94
Figure 14. Write AC waveforms, Write Enable Controlled
AI08972
E
G
W
A0-A22/
A–1
DQ0-DQ7/
DQ8-DQ15
VALID
VALID
VCC
tVCHEL
tWHEH
tWHWL
tELWL
tAVWL
tWHGL
tWLAX
tWHDX
tAVAV
tDVWH
tWLWHtGHWL
RB
tWHRL
Table 27. Write AC characteristics, Write Enable Controlled
Symbol Alt Parameter M29DW128F Unit
60 70
tAVAV tWC Address Valid to Next Address Valid Min 60 70 ns
tELWL tCS Chip Enable Low to Write Enable Low Min 0 0 ns
tWLWH tWP Write Enable Low to Write Enable High Min 45 45 ns
tDVWH tDS Input Valid to Write Enable High Min 45 45 ns
tWHDX tDH Write Enable High to Input Transition Min 0 0 ns
tWHEH tCH Write Enable High to Chip Enable High Min 0 0 ns
tWHWL tWPH Write Enable High to Write Enable Low Min 30 30 ns
tAVWL tAS Address Valid to Write Enable Low Min 0 0 ns
tWLAX tAH Write Enable Low to Address Transition Min 45 45 ns
tGHWL Output Enable High to Write Enable Low Min 0 0 ns
tWHGL tOEH Write Enable High to Output Enable Low Min 0 0 ns
tWHRL(1) tBUSY Program/Erase Valid to RB Low Max 30 30 ns
tVCHEL tVCS VCC High to Chip Enable Low Min 50 50 µs
1. Sampled only, not 100% tested.
DC and AC parameters M29DW128F
62/94
Figure 15. Write AC waveforms, Chip Enable Controlled
AI0897
3
E
G
W
A0-A22/
A–1
DQ0-DQ7/
DQ8-DQ15
VALID
VALID
VCC
tVCHWL
tEHWH
tEHEL
tWLEL
tAVEL
tEHGL
tELAX
tEHDX
tAVAV
tDVEH
tELEHtGHEL
RB
tEHRL
Table 28. Write AC characteristics, Chip Enable Controlled
Symbol Alt Parameter M29DW128F Unit
60 70
tAVAV tWC Address Valid to Next Address Valid Min 60 70 ns
tWLEL tWS Write Enable Low to Chip Enable Low Min 0 0 ns
tELEH tCP Chip Enable Low to Chip Enable High Min 45 45 ns
tDVEH tDS Input Valid to Chip Enable High Min 45 45 ns
tEHDX tDH Chip Enable High to Input Transition Min 0 0 ns
tEHWH tWH Chip Enable High to Write Enable High Min 0 0 ns
tEHEL tCPH Chip Enable High to Chip Enable Low Min 30 3 0 ns
tAVEL tAS Add ress Valid to Chip Enable Low Min 0 0 ns
tELAX tAH Chip Enable Low to Address Transition Min 45 4 5 ns
tGHEL Output Enable High Chip Enable Low Min 0 0 ns
tEHGL tOEH Chip Enable High to Output Enable Low Min 0 0 ns
tEHRL(1) tBUSY Program/Erase Valid to RB Low Max 30 30 ns
tVCHWL tVCS VCC High to Write En able Low Min 50 50 µs
1. Sampled only, not 100% tested.
M29DW128F DC and AC parameters
63/94
Figure 16. Toggle and Alternative Toggle bits mechanism, Chip Enable Controlle d
1. The Toggle bit is output on DQ6.
2. The Alternative Toggle bit is output on DQ2.
3. Refer to Table 26: Read AC characteristics for the value of tELQV.
Figure 17. Toggle and Alternative Toggle bits mechanism, Output Enable Controlled
1. The Toggle bit is output on DQ6.
2. The Alternative Toggle bit is output on DQ2.
3. Refer to Table 26: Read AC characteristics for the value of tGLQV.
AI08914e
G
A0-A22
DQ2(1)/DQ6(2)
E
tAXEL
tELQV
Data Data
Toggle/
Alt.Toggle Bit
tELQV
Address in the Bank
being Programmed or Erased
Read Operation outside the Bank
Being Programmed or Erased
Address Outside the Bank
being Programmed or Erased
Toggle/
Alt.Toggle Bit
Read Operation Outside the Bank
Being Programmed or Erased
Read Operation in the Bank
Being Programmed or Erased
Address Outside the Bank
being Programmed or Erased
AI08915e
G
A0-A22
DQ2
(1)
/DQ6
(2)
E
tAXGL
tGLQV
Data Data
Toggle/
Alt.Toggle Bit
tGLQV
Address in the Bank
being Programmed/Erased
Read Operation outside Bank
Being Programmed or Erased
Address Outside the Bank
being Programmed/Erased
Toggle/
Alt.Toggle Bit
Read Operation outside Bank
Being Programmed or Erased
Read Operation in Bank
Being Programmed or Erased
Address Outside the Bank
being Programmed/Erased
Table 29. Toggle and Alternative Toggle bits AC characteristics
Symbol Alt Parameter M29DW128F Unit
60 70
tAXEL Address Transition to Chip Enable Low Min 10 10 ns
tAXGL Address Transition to Output Enable Low Min 10 10 ns
DC and AC parameters M29DW128F
64/94
Figure 18. Reset/Block Temporary Unprotect AC waveforms (No Program/Erase ongoing)
Figure 19. Reset/Block Temporary Unpr otect During Program/Erase Operation AC waveforms
Figure 20. Accelerated Program Timing waveforms
AI11300b
RB
RP tPLPX
tPHEL,
tPHGL
E, G
AI11301b
RB
RP
tPLPX
tRHEL, tRHGL
E, G
tPLYH
AI05563
VPP/WP
VPP
VIL or VIH tVHVPP tVHVPP
M29DW128F DC and AC parameters
65/94
Table 30. Reset/Block Temporary Unprotect AC cha r acteristics
Symbol Alt Parameter M29DW128F Unit
60 70
tPLYH(1) tREADY RP Low to Re ad mod e, during Program or
Erase Max 20 µs
tPLPX tRP RP Pulse Widt h Min 500 ns
tPHEL,
tPHGL(1) tRH RP High to Write Enable Low, Chip Enable
Low, Output Enable Low Min 50 ns
tRPD RP Low to Standby Mode. Min 20 ns
tRHEL
tRHGL(1) tRB RB High to Write Enable Low, Chip Enable
Low, Output Enable Low Min 0 ns
1. Sampled only, not 100% tested.
Package mechanical M29DW128F
66/94
11 Package mechanical
Figure 21. TSOP56 – 56 lead Plastic Thin Small Outline, 14 x 20mm, package outline
1. Drawing is not to scale.
TSOP-b
D1
E
1 N
CP
B
e
A2
A
N/2
D
DIE
C
LA1 α
Table 31. TSOP56 – 56 lead Plastic Thin Small Outline, 14 x 20mm, package mechanical data
Symbol millimeters inches
Typ Min Max Typ Min Max
A 1.200 0.0472
A1 0.100 0.050 0.150 0.0039 0.0020 0.0059
A2 1.000 0.950 1.050 0.0394 0.0374 0.0413
B 0.220 0.170 0.270 0.0087 0.0067 0.0106
C 0.100 0.210 0.0039 0.0083
CP 0.100 0.0039
D 20.000 19.800 20.200 0.7874 0.7795 0.7953
D1 18.400 18.300 18.500 0.7244 0.7205 0.7283
e 0.500 – – 0.0197 – –
E 14.000 13.900 14.100 0.5512 0.5472 0.5551
L 0.600 0.500 0.700 0.0236 0.0197 0.0276
α3° 0 5° 3° 0 5°
N56 56
M29DW128F Package mechanical
67/94
Figure 22. TBGA64 10x13mm - 8x8 active ball array, 1mm pitch, pac kage outline
1. Drawing is not to scale.
E1E
D1
D
eb
SD
SE
A2
A1
A
BGA-Z23
ddd
FD
FE
BALL "A1"
Table 32. TBGA64 10x13mm - 8x8 active ball array, 1mm pitch, package mechanical data
Symbol millimeters inches
Typ Min Max Typ Min Max
A 1.200 0.0472
A1 0.300 0.200 0.350 0.0118 0.0079 0.0138
A2 0.800 0.0315
b 0.350 0.500 0.0138 0.0197
D 10.000 9.900 10.100 0.3937 0.3898 0.3976
D1 7.000 – – 0.2756 – –
ddd 0.100 0.0039
e 1.000 – – 0.0394 – –
E 13.000 12.900 13.100 0.5118 0.5079 0.5157
E1 7.000 – – 0.2756 – –
FD 1.500 – – 0.0591 – –
FE 3.000 – – 0.1181 – –
SD 0.500 – – 0.0197 – –
SE 0.500 – – 0.0197 – –
Part numbering M29DW128F
68/94
12 Part numbering
Note: This product is also a vailab le with the Extende d Bloc k f a ctory lock ed. For further details and
ordering information contact your nearest ST sales office.
De vices are shipped from the factory with the memory content bits erased to ’1’.
For a list of available options (Sp eed, Package, etc.) or for further information on any aspect of this
device, please contact your nearest ST Sales Office.
Table 33. Ordering information scheme
Example: M29DW128F 70 NF 1 T
Device type
M29
Architecture
D = Dual Operation
Operatin g voltage
W = VCC = 2.7 to 3.6V
Device function
128F = 128 Mbit (x8/x16), Multiple Bank , Page, Boot Block, 16+48+48+16
partitioning, Flash Memory
Speed
60 = 60ns
70 = 70ns
Package
NF = TSOP56: 14 x 20 mm
ZA = TBGA64: 10 x13mm, 1mm pitch
Temperature range
1 = 0 to 70 °C
6 = –40 to 85 °C
Option
Blank = Standard Packing
T = Tape & Reel Packing
E = ECOPACK Package, Standard Packing
F = ECOPACK Package, Tape & Reel 24mm Packing
M29DW128F Block addresses and Read/Modify Protection Groups
69/94
Appendix A Block addresses and Read/Modify Protection
Groups
Table 34. Block Addresses and Protection Groups
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
Bank A
0 8/4 Protection Group 000000h-001FFFh(1) 000000h–000FFFh(1)
1 8/4 Protection Group 002000h-003FFFh(1) 001000h–001FFFh(1)
2 8/4 Protection Group 004000h-005FFFh(1) 002000h–002FFFh(1)
3 8/4 Protection Group 006000h-007FFFh(1) 003000h–003FFFh(1)
4 8/4 Protection Group 008000h-009FFFh(1) 004000h–004FFFh(1)
5 8/4 Protection Group 00A0 00h-00BFFFh(1) 005000h–005FFFh(1)
6 8/4 Protection Group 00C000h-00DFFFh(1) 006000h–006FFFh(1)
7 8/4 Protection Group 00E000h-00FFFFh(1) 007000h–007FFFh(1)
8 64/32
Protection Group
010000h-01FFFFh 008000h–00FFFFh
9 64/32 020000h-02FFFFh 010000h–017FFFh
10 64/32 030000h-03FFFFh 018000h–01FFFFh
11 64/32
Protection Group
040000h-04FFFFh 020000h–027FFFh
12 64/32 050000h-05FFFFh 028000h–02FFFFh
13 64/32 060000h-06FFFFh 030000h–037FFFh
14 64/32 070000h-07FFFFh 038000h–03FFFFh
15 64/32
Protection Group
080000h-08FFFFh 040000h–047FFFh
16 64/32 090000h-09FFFFh 048000h–04FFFFh
17 64/32 0A0000h-0AFFFFh 050000h–057FFFh
18 64/32 0B0000h-0BFFFFh 058000h–05FFFFh
19 64/32
Protection Group
0C0000h-0CFFFFh 060000h–067FFFh
20 64/32 0D0000h-0DFFFFh 068000h–06FFFFh
21 64/32 0E0000h-0EFFFFh 070000h–077FFFh
22 64/32 0F0000h-0FFFFFh 078000h–07FFFFh
23 64/32
Protection Group
100000h-10FFFFh 080000h–087FFFh
24 64/32 110000h-11FFFFh 088000h–08FFFFh
25 64/32 120000h-12FFFFh 090000h–097FFFh
26 64/32 130000h-13FFFFh 098000h–09FFFFh
Block addresses and Read/Modify Protection Groups M29DW128F
70/94
Bank A
27 64/32
Protection Group
140000h-14FFFFh 0A0000h–0A7FFFh
28 64/32 150000h-15FFFFh 0A8000h–0AFFFFh
29 64/32 160000h-16FFFFh 0B0000h–0B7FFFh
30 64/32 170000h-17FFFFh 0B8000h–0BFFFFh
31 64/32
Protection Group
180000h-18FFFFh 0C0000h–0C7FFFh
32 64/32 190000h-19FFFFh 0C8000h–0CFFFFh
33 64/32 1A0000h-1AFFFFh 0D0000h–0D7FFFh
34 64/32 1B0000h-1BFFFFh 0D8000h–0DFFFFh
35 64/32
Protection Group
1C0000h-1CFFFFh 0E0000h–0E7FFFh
36 64/32 1D0000h-1DFFFFh 0E8000h–0EFFFFh
37 64/32 1E0000h-1EFFFFh 0F0000h–0F7FFFh
38 64/32 1F0000h-1FFFFFh 0F8000h–0FFFFFh
Bank B
39 64/32
Protection Group
200000h-20FFFFh 100000h–107FFFh
40 64/32 210000h-21FFFFh 108000h–10FFFFh
41 64/32 220000h-22FFFFh 110000h–117FFFh
42 64/32 230000h-23FFFFh 118000h–11FFFFh
43 64/32
Protection Group
240000h-24FFFFh 120000h–127FFFh
44 64/32 250000h-25FFFFh 128000h–12FFFFh
45 64/32 260000h-26FFFFh 130000h–137FFFh
46 64/32 270000h-27FFFFh 138000h–13FFFFh
47 64/32
Protection Group
280000h-28FFFFh 140000h–147FFFh
48 64/32 290000h-29FFFFh 148000h–14FFFFh
49 64/32 2A0000h-2AFFFFh 150000h–157FFFh
50 64/32 2B0000h-2BFFFFh 158000h–15FFFFh
51 64/32
Protection Group
2C0000h-2CFFFFh 160000h–167FFFh
52 64/32 2D0000h-2DFFFFh 168000h–16FFFFh
53 64/32 2E0000h-2EFFFFh 170000h–177FFFh
54 64/32 2F0000h-2FFFFFh 178000h–17FFFFh
55 64/32
Protection Group
300000h-30FFFFh 180000h–187FFFh
56 64/32 310000h-31FFFFh 188000h–18FFFFh
57 64/32 320000h-32FFFFh 190000h–197FFFh
58 64/32 330000h-33FFFFh 198000h–19FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
M29DW128F Block addresses and Read/Modify Protection Groups
71/94
Bank B
59 64/32
Protection Group
340000h-34FFFFh 1A0000h–1A7FFFh
60 64/32 350000h-35FFFFh 1A8000h–1AFFFFh
61 64/32 360000h-36FFFFh 1B0000h–1B7FFFh
62 64/32 370000h-37FFFFh 1B8000h–1BFFFFh
63 64/32
Protection Group
380000h-38FFFFh 1C0000h–1C7FFFh
64 64/32 390000h-39FFFFh 1C8000h–1CFFFFh
65 64/32 3A0000h-3AFFFFh 1D0000h–1D7FFFh
66 64/32 3B0000h-3BFFFFh 1D8000h–1DFFFFh
67 64/32
Protection Group
3C0000h-3CFFFFh 1E0000h–1E7FFFh
68 64/32 3D0000h-3DFFFFh 1E8000h–1EFFFFh
69 64/32 3E0000h-3EFFFFh 1F0000h–1F7FFFh
70 64/32 3F0000h-3FFFFFh 1F8000h–1FFFFFh
71 64/32
Protection Group
400000h–40FFFFh 200000h–207FFFh
72 64/32 410000h–41FFFFh 208000h–20FFFFh
73 64/32 420000h–42FFFFh 210000h–217FFFh
74 64/32 430000h–43FFFFh 218000h–21FFFFh
75 64/32
Protection Group
440000h–44FFFFh 220000h–227FFFh
76 64/32 450000h–45FFFFh 228000h–22FFFFh
77 64/32 460000h–46FFFFh 230000h–237FFFh
78 64/32 470000h–47FFFFh 238000h–23FFFFh
79 64/32
Protection Group
480000h–48FFFFh 240000h–247FFFh
80 64/32 490000h–49FFFFh 248000h–24FFFFh
81 64/32 4A0000h–4AFFFFh 250000h–257FFFh
82 64/32 4B0000h–4BFFFFh 258000h–25FFFFh
83 64/32
Protection Group
4C0000h–4CFFFFh 260000h–267FFFh
84 64/32 4D0000h–4DFFFFh 268000h–26FFFFh
85 64/32 4E0000h–4EFFFFh 270000h–277FFFh
86 64/32 4F0000h–4FFFFFh 278000h–27FFFFh
87 64/32
Protection Group
500000h–50FFFFh 280000h–287FFFh
88 64/32 510000h–51FFFFh 288000h–28FFFFh
89 64/32 520000h–52FFFFh 290000h–297FFFh
90 64/32 530000h–53FFFFh 298000h–29FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
Block addresses and Read/Modify Protection Groups M29DW128F
72/94
Bank B
91 64/32
Protection Group
540000h–54FFFFh 2A0000h–2A7FFFh
92 64/32 550000h–55FFFFh 2A8000h–2AFFFFh
93 64/32 560000h–56FFFFh 2B0000h–2B7FFFh
94 64/32 570000h–57FFFFh 2B8000h–2BFFFFh
95 64/32
Protection Group
580000h–58FFFFh 2C0000h–2C7FFFh
96 64/32 590000h–59FFFFh 2C8000h–2CFFFFh
97 64/32 5A0000h–5AFFFFh 2D0000h–2D7FFFh
98 64/32 5B0000h–5BFFFFh 2D8000h–2DFFFFh
99 64/32
Protection Group
5C0000h–5CFFFFh 2E0000h–2E7FFFh
100 64/32 5D0000h–5DFFFFh 2E8000h–2EFFFFh
101 64/32 5E0000h–5EFFFFh 2F0000h–2F7FFFh
102 64/32 5F0000h–5FFFFFh 2F8000h–2FFFFFh
103 64/32
Protection Group
600000h–60FFFFh 300000h–307FFFh
104 64/32 610000h–61FFFFh 308000h–30FFFFh
105 64/32 620000h–62FFFFh 310000h–317FFFh
106 64/32 630000h–63FFFFh 318000h–31FFFFh
107 64/32
Protection Group
640000h–64FFFFh 320000h–327FFFh
108 64/32 650000h–65FFFFh 328000h–32FFFFh
109 64/32 660000h–66FFFFh 330000h–337FFFh
110 64/32 670000h–67FFFFh 338000h–33FFFFh
111 64/32
Protection Group
680000h–68FFFFh 340000h–347FFFh
112 64/32 690000h–69FFFFh 348000h–34FFFFh
113 64/32 6A0000h–6AFFFFh 350000h–357FFFh
114 64/32 6B0000h–6BFFFFh 358000h–35FFFFh
115 64/32
Protection Group
6C0000h–6CFFFFh 360000h–367FFFh
116 64/32 6D0000h–6DFFFFh 368000h–36FFFFh
117 64/32 6E0000h–6EFFFFh 370000h–377FFFh
118 64/32 6F0000h–6FFFFFh 378000h–37FFFFh
119 64/32
Protection Group
700000h–70FFFFh 380000h–387FFFh
120 64/32 710000h–71FFFFh 388000h–38FFFFh
121 64/32 720000h–72FFFFh 390000h–397FFFh
122 64/32 730000h–73FFFFh 398000h–39FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
M29DW128F Block addresses and Read/Modify Protection Groups
73/94
Bank B
123 64/32
Protection Group
740000h–74FFFFh 3A0000h–3A7FFFh
124 64/32 750000h–75FFFFh 3A8000h–3AFFFFh
125 64/32 760000h–76FFFFh 3B0000h–3B7FFFh
126 64/32 770000h–77FFFFh 3B8000h–3BFFFFh
127 64/32
Protection Group
780000h–78FFFFh 3C0000h–3C7FFFh
128 64/32 790000h–79FFFFh 3C8000h–3CFFFFh
129 64/32 7A0000h–7AFFFFh 3D0000h–3D7FFFh
130 64/32 7B0000h–7BFFFFh 3D8000h–3DFFFFh
131 64/32
Protection Group
7C0000h–7CFFFFh 3E0000h–3E7FFFh
132 64/32 7D0000h–7DFFFFh 3E8000h–3EFFFFh
133 64/32 7E0000h–7EFFFFh 3F0000h–3F7FFFh
134 64/32 7F0000h-7FFFFFh 3F8000h-3FFFFFh
Bank C
135 64/32
Protection Group
800000h–80FFFFh 400000h–407FFFh
136 64/32 810000h–81FFFFh 408000h–40FFFFh
137 64/32 820000h–82FFFFh 410000h–417FFFh
138 64/32 830000h–83FFFFh 418000h–41FFFFh
139 64/32
Protection Group
840000h–84FFFFh 420000h–427FFFh
140 64/32 850000h–85FFFFh 428000h–42FFFFh
141 64/32 860000h–86FFFFh 430000h–437FFFh
142 64/32 870000h–87FFFFh 438000h–43FFFFh
143 64/32
Protection Group
880000h–88FFFFh 440000h–447FFFh
144 64/32 890000h–89FFFFh 448000h–44FFFFh
145 64/32 8A0000h–8AFFFFh 450000h–457FFFh
146 64/32 8B0000h–8BFFFFh 458000h–45FFFFh
147 64/32
Protection Group
8C0000h–8CFFFFh 460000h–467FFFh
148 64/32 8D0000h–8DFFFFh 468000h–46FFFFh
149 64/32 8E0000h–8EFFFFh 470000h–477FFFh
150 64/32 8F0000h-8FFFFFh 478000h–47FFFFh
151 64/32
Protection Group
900000h-90FFFFh 480000h–487FFFh
152 64/32 910000h–91FFFFh 488000h–48FFFFh
153 64/32 920000h–92FFFFh 490000h–497FFFh
154 64/32 930000h–93FFFFh 498000h–49FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
Block addresses and Read/Modify Protection Groups M29DW128F
74/94
Bank C
155 64/32
Protection Group
940000h–94FFFFh 4A0000h–4A7FFFh
156 64/32 950000h–95FFFFh 4A8000h–4AFFFFh
157 64/32 960000h–96FFFFh 4B0000h–4B7FFFh
158 64/32 970000h–97FFFFh 4B8000h–4BFFFFh
159 64/32
Protection Group
980000h–98FFFFh 4C0000h–4C7FFFh
160 64/32 990000h–99FFFFh 4C8000h–4CFFFFh
161 64/32 9A0000h–9AFFFFh 4D0000h–4D7FFFh
162 64/32 9B0000h–9BFFFFh 4D8000h–4DFFFFh
163 64/32
Protection Group
9C0000h–9CFFFFh 4E0000h–4E7FFFh
164 64/32 9D0000h–9DFFFFh 4E8000h–4EFFFFh
165 64/32 9E0000h–9EFFFFh 4F0000h–4F7FFFh
166 64/32 9F0000h–9FFFFFh 4F8000h-4FFFFFh
167 64/32
Protection Group
A00000h–A0FFFFh 500000h–507FFFh
168 64/32 A10000h–A1FFFFh 508000h–50FFFFh
169 64/32 A20000h–A2FFFFh 510000h–517FFFh
170 64/32 A30000h–A3FFFFh 518000h–51FFFFh
171 64/32
Protection Group
A40000h–A4FFFFh 520000h–527FFFh
172 64/32 A50000h–A5FFFFh 528000h–52FFFFh
173 64/32 A60000h–A6FFFFh 530000h–537FFFh
174 64/32 A70000h–A7FFFFh 538000h–53FFFFh
175 64/32
Protection Group
A80000h–A8FFFFh 540000h–547FFFh
176 64/32 A90000h–A9FFFFh 548000h–54FFFFh
177 64/32 AA0000h–AAFFFFh 550000h–557FFFh
178 64/32 AB0000h–ABFFFFh 558000h–55FFFFh
179 64/32
Protection Group
AC0000h–ACFFFFh 560000h–567FFFh
180 64/32 AD0000h–ADFFFFh 568000h–56FFFFh
181 64/32 AE0000h–AEFFFFh 570000h–577FFFh
182 64/32 AF0000h-AFFFFFh 578000h–57FFFFh
183 64/32
Protection Group
B00000h–B0FFFFh 580000h–587FFFh
184 64/32 B10000h–B1FFFFh 588000h–58FFFFh
185 64/32 B20000h–B2FFFFh 590000h–597FFFh
186 64/32 B30000h-B3FFFFh 598000h–59FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
M29DW128F Block addresses and Read/Modify Protection Groups
75/94
Bank C
187 64/32
Protection Group
B40000h–B4FFFFh 5A0000h–5A7FFFh
188 64/32 B50000h–B5FFFFh 5A8000h–5AFFFFh
189 64/32 B60000h–B6FFFFh 5B0000h–5B7FFFh
190 64/32 B70000h-B7FFFFh 5B8000h–5BFFFFh
191 64/32
Protection Group
B80000h–B8FFFFh 5C0000h–5C7FFFh
192 64/32 B90000h–B9FFFFh 5C8000h–5CFFFFh
193 64/32 BA0000h–BAFFFFh 5D0000h–5D7FFFh
194 64/32 BB0000h–BBFFFFh 5D8000h–5DFFFFh
195 64/32
Protection Group
BC0000h–BCFFFFh 5E0000h–5E7FFFh
196 64/32 BD0000h–BDFFFFh 5E8000h–5EFFFFh
197 64/32 BE0000h–BEFFFFh 5F0000h–5F7FFFh
198 64/32 BF0000h–BFFFFFh 5F8000h-5FFFFFh
199 64/32
Protection Group
C00000h–C0FFFFh 600000h–607FFFh
200 64/32 C10000h–C1FFFFh 608000h–60FFFFh
201 64/32 C20000h–C2FFFFh 610000h–617FFFh
202 64/32 C30000h–C3FFFFh 618000h–61FFFFh
203 64/32
Protection Group
C40000h–C4FFFFh 620000h–627FFFh
204 64/32 C50000h–C5FFFFh 628000h–62FFFFh
205 64/32 C60000h–C6FFFFh 630000h–637FFFh
206 64/32 C70000h-C7FFFFh 638000h–63FFFFh
207 64/32
Protection Group
C80000h–C8FFFFh 640000h–647FFFh
208 64/32 C90000h–C9FFFFh 648000h–64FFFFh
209 64/32 CA0000h–CAFFFFh 650000h–657FFFh
210 64/32 CB0000h–CBFFFFh 658000h–65FFFFh
211 64/32
Protection Group
CC0000h–CCFFFFh 660000h–667FFFh
212 64/32 CD0000h–CDFFFFh 668000h–66FFFFh
213 64/32 CE0000h–CEFFFFh 670000h–677FFFh
214 64/32 CF0000h-CFFFFFh 678000h–67FFFFh
215 64/32
Protection Group
D00000h–D0FFFFh 680000h–687FFFh
216 64/32 D10000h–D1FFFFh 688000h–68FFFFh
217 64/32 D20000h–D2FFFFh 690000h–697FFFh
218 64/32 D30000h–D3FFFFh 698000h–69FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
Block addresses and Read/Modify Protection Groups M29DW128F
76/94
Bank C
219 64/32
Protection Group
D40000h–D4FFFFh 6A0000h–6A7FFFh
220 64/32 D50000h–D5FFFFh 6A8000h–6AFFFFh
221 64/32 D60000h–D6FFFFh 6B0000h–6B7FFFh
222 64/32 D70000h-D7FFFFh 6B8000h–6BFFFFh
223 64/32
Protection Group
D80000h-D8FFFFh 6C0000h–6C7FFFh
224 64/32 D90000h-D9FFFFh 6C8000h–6CFFFFh
225 64/32 DA0000h-DAFFFFh 6D0000h–6D7FFFh
226 64/32 DB0000h-DBFFFFh 6D8000h–6DFFFFh
227 64/32
Protection Group
DC0000h-DCFFFFh 6E0000h–6E7FFFh
228 64/32 DD0000h-DDFFFFh 6E8000h–6EFFFFh
229 64/32 DE0000h-DEFFFFh 6F0000h–6F7FFFh
230 64/32 DF0000h-DFFFFFh 6F8000h-6FFFFFh
Bank D
231 64/32
Protection Group
E00000h-E0FFFFh 700000h–707FFFh
232 64/32 E10000h-E1FFFFh 708000h–70FFFFh
233 64/32 E20000h-E2FFFFh 710000h–717FFFh
234 64/32 E30000h-E3FFFFh 718000h–71FFFFh
235 64/32
Protection Group
E40000h-E4FFFFh 720000h–727FFFh
236 64/32 E50000h-E5FFFFh 728000h–72FFFFh
237 64/32 E60000h-E6FFFFh 730000h–737FFFh
238 64/32 E70000h-E7FFFFh 738000h–73FFFFh
239 64/32
Protection Group
E80000h-E8FFFFh 740000h–747FFFh
240 64/32 E90000h-E9FFFFh 748000h–74FFFFh
241 64/32 EA0000h-EAFFFFh 750000h–757FFFh
242 64/32 EB0000h-EBFFFFh 758000h–75FFFFh
243 64/32
Protection Group
EC0000h-ECFFFFh 760000h–767FFFh
244 64/32 ED0000h-EDFFFFh 768000h–76FFFFh
245 64/32 EE0000h-EEFFFFh 770000h–777FFFh
246 64/32 EF0000h-EFFFFFh 778000h–77FFFFh
247 64/32
Protection Group
F00000h-F0FFFFh 780000h–787FFFh
248 64/32 F10000h-F1FFFFh 788000h–78FFFFh
249 64/32 F20000h-F2FFFFh 790000h–797FFFh
250 64/32 F30000h-F3FFFFh 798000h–79FFFFh
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
M29DW128F Block addresses and Read/Modify Protection Groups
77/94
Bank D
251 64/32
Protection Group
F40000h-F4FFFFh 7A0000h–7A7FFFh
252 64/32 F50000h-F5FFFFh 7A8000h–7AFFFFh
253 64/32 F60000h-F6FFFFh 7B0000h–7B7FFFh
254 64/32 F70000h-F7FFFFh 7B8000h–7BFFFFh
255 64/32
Protection Group
F80000h-F8FFFFh 7C0000h–7C7FFFh
256 64/32 F90000h-F9FFFFh 7C8000h–7CFFFFh
257 64/32 FA0000h-FAFFFFh 7D0000h–7D7FFFh
258 64/32 FB0000h-FBFFFFh 7D8000h–7DFFFFh
259 64/32
Protection Group
FC0000h-FCFFFFh 7E0000h–7E7FFFh
260 64/32 FD0000h-FDFFFFh 7E8000h–7EFFFFh
261 64/32 FE0000h-FEFFFFh 7F0000h-7F7FFFh
262 8/4 Protection Group FF0000h-FF1FFFh(1) 7F8000h-7F8FFFh(1)
263 8/4 Protection Group FF2000h-FF3FFFh(1) 7F9000h-7F9FFFh(1)
264 8/4 Protection Group FF4000h-FF5FFFh(1) 7FA000h-7FAFFFh(1)
265 8/4 Protection Group FF6000h-FF7FFFh(1) 7FB000h-7FBFFFh(1)
266 8/4 Protection Group FF8000h-FF9FFFh(1) 7FC000h-7FCFFFh(1)
267 8/4 Protection Group FFA000h-FFBFFFh(1) 7FD000h-7FDFFFh(1)
268 8/4 Protection Group FFC000h-FFDFFFh(1) 7FE000h-7FEFFFh(1)
269 8/4 Protection Group FFE000h-FFFFFFh(1) 7FF000h-7FFFFFh(1)
1. Parameter Blocks.
Table 34. Block Addresses and Protection Groups (continued)
Bank Block Size
(kbytes/KWords) Protection Block
Group (x8) (x16)
Common Flash Interface (CFI) M29DW128F
78/94
Appendix B Common Flash Interface (CFI)
The Common Flash Interface is a JEDEC approved, standardized data structure that can be read from
the Flash memory device. It allo ws a syst em so ft ware to query the device t o d etermine v arious el ectrical
and timing parameters , density information and functions supported by the memory. The system can
interface easily with the device, enabling the software to upgrade itself when necessary.
When the Read CFI Query command is issued the addressed bank enters Read CFI Q uery mode and
read oper ations in t he same ba nk (A22-A19) output t he CFI d ata. Table 35, Table 36, Table 37, Table 38,
Table 39 and Table 40 show the addresses (A-1, A0-A10) used to retrieve the data.
The CFI data structure also contains a security area where a 64 bit unique security number is written
(see Table 40: Security Code Area). This a re a ca n be acce ssed o nly in Read mo de by the fina l user. It is
impossible to change the security number after it has been written by ST.
Table 35. Query Structure Overview(1)
Address Sub-section Name Description
x16 x8
10h 20h CFI Query Identification String Command set ID and algorithm data offset
1Bh 36h System Interface Information Device timing & voltage information
27h 4Eh Device Geometry Definition Flash device layout
40h 80h Primary Al gorithm-specific Extended
Query table Additional information specific to the Primary
Algorithm (optional)
61h C2h Security Code Area 64 bit unique device number
1. Query data are always presented on the lowest order data outputs.
Table 36. CFI Query Identification String(1)
Address Data Description Value
x16 x8
10h 20h 0051h “Q”
11h 22h 0052h Query Unique ASCII String "QRY" "R"
12h 24h 0059h "Y"
13h 26h 0002h Primary Algorithm Command Set and Control Interface ID code 16 bit
ID code defining a specific algorithm AMD
Compatible
14h 28h 0000h
15h 2Ah 0040h Address for Primary Algor ithm extended Query table (see Table 39)P = 40h
16h 2Ch 0000h
17h 2Eh 0000h Alternate Vendor Command Set and Control Interface ID Code
second vendor - specified algorithm supported NA
18h 30h 0000h
19h 32h 0000h Address for Alternate Algorithm extended Query table NA
1Ah 34h 0000h
1. Query data are always presented on the lowest order data outputs (DQ7-DQ0) only. DQ8-DQ15 are ‘0’.
M29DW128F Common Flash Interface (CFI)
79/94
Table 37. CFI Query System Interface information(1)
Address Data Description Value
x16 x8
1Bh 36h 0027h VCC Logic Supply Minimum Program/Erase voltage
bit 7 to 4BCD value in volts
bit 3 to 0BCD value in 100mV 2.7V
1Ch 38h 0036h VCC Logic Supply Maximum Program/Erase voltage
bit 7 to 4BCD value in volts
bit 3 to 0BCD value in 100mV 3.6V
1Dh 3Ah 00B5h VPP [Programming] Supply Minimum Program/Erase voltage
bit 7 to 4HEX value in volts
bit 3 to 0BCD value in 100mV 11.5V
1Eh 3Ch 00C5h VPP [Programming] Supply Maximum Program/Erase voltage
bit 7 to 4HEX value in volts
bit 3 to 0BCD value in 10mV 12.5V
1Fh 3Eh 0004h Typical timeout per single byte/Word program = 2n µs 16µs
20h 40h 0000h Typical timeout for minimum size write buffer program = 2n µs NA
21h 42h 0009h Typical timeout per individual block erase = 2n ms 512ms
22h 44h 0000h Typical timeout for full Chip Erase = 2n ms NA
23h 46h 0005h Maximum timeout for byte/Word program = 2n times typical 512µs
24h 48h 0000h Maximum timeout for write buffer program = 2n times typical NA
25h 4Ah 0004 h Maximum timeout per individual block erase = 2n times typical 8s
26h 4Ch 0000h Maximum timeout for Chip Erase = 2n times typical NA
1. The values given in the above table are valid for both packages.
Common Flash Interface (CFI) M29DW128F
80/94
Table 38. Device Geometry Definition(1)
Address Data Description Value
x16 x8
27h 4Eh 0018h Device Size = 2n in number of bytes 16
Mbytes
28h 50h 0001h TBGA64
(x16 only)
Flash Device Interface Code description x8, x16
Async.
0002h TSOP56
(x8/x16)
29h 52h 0000h Both
Packages
2Ah 54h 0006h Maximum number of bytes in Multiple-byte program or Page= 2n64
2Bh 56h 0000h
2Ch 58h 0003h Number of Erase Block Regions(1). It specifies the number of regions
containing contiguous Erase Blocks of the same size. 3
2Dh
2Eh 5Ah
5Ch 0007h
0000h Erase Block Region 1 Information
Number of Erase Blocks of identical size = 0007h+1 8
2Fh
30h 5Eh
60h 0020h
0000h Erase Block Region 1 Information
Block size in Region 1 = 0020h * 256 byte 8
Kbytes
31h
32h 62h
64h 00FDh
0000h Erase Block Region 2 Information
Number of Erase Blocks of identical size = 00FDh+1 254
33h
34h 66h
68h 0000h
0001h Erase Block Region 2 Information
Block size in Region 2 = 0100h * 256 byte 64
Kbytes
35h
36h 6Ah
6Ch 0007h
0000h Erase Block Region 3 information
Number of Erase Blocks of identical size = 0007h + 1 8
37h
38h 6Eh
70h 0020h
0000h Erase Block Region 3 information
Block size in region 3 = 0020h * 256 bytes 8
Kbytes
39h
3Ah
3Bh
3Ch
72h
74h
76h
78h
0000h
0000h
0000h
0000h
Erase Block Region 4 information 0
1. Erase Block Region 1 corresponds to addresses 000000h to 007FFFh; Erase block Region 2 corresponds to addresses
008000h to 3F7FFFh and Erase Block Region 3 corresponds to addresses 3F8000h to 3FFFFFh.
M29DW128F Common Flash Interface (CFI)
81/94
Table 39. Primary Algorithm-Specific Extended Query table (1)
Address Data Description Value
x16 x8
40h 80h 0050h
Primary Algorithm Extended Query table unique ASCII string “PRI”
"P"
41h 82h 0052h "R"
42h 84h 0049h "I"
43h 86h 0031h Major version number, ASCII "1"
44h 88h 0033h Minor version number, ASCII "3"
45h 8Ah 000Ch Address Sensitive Unlock (bits 1 to 0)
00 = required, 01= not required
Silicon Revision Number (bits 7 to 2) Yes
46h 8Ch 0002h Erase Suspend
00 = not supported, 01 = Read only, 02 = Read and Write 2
47h 8Eh 0001h Block Protection
00 = not supported, x = number of sectors in per group 1
48h 90h 0001h Temporar y Block Unprotect
00 = not supported, 01 = supported Yes
49h 92h 0006h Block Protect /Unprotect
06 = M29DW128F 6
4Ah 94h 00E7 Simultaneous Operations,
x = number of blocks (excluding Bank A) 231
4Bh 96h 0000h Burst Mode, 00 = not supported, 01 = supported No
4Ch 98h 0002h Page Mode, 00 = not supported, 02 = 8-W ord page Yes
4Dh 9Ah 00B5h VPP Supply Minimum Program/Erase voltage
bit 7 to 4 HEX value in volts
bit 3 to 0 BCD value in 100mV 11.5V
4Eh 9Ch 00C5h VPP Supply Maximum Program/Er ase voltage
bit 7 to 4 HEX value in volts
bit 3 to 0 BCD value in 100mV 12.5V
4Fh 9Eh 0001h
Top/Bottom Boot Block Flag
00h = Uniform device
01h = 8 x8 Kbyte Blocks or 4KWords, Top and Bottom Boot with
Write Protect
02h = Bottom boot device
03h = Top Boot Device
04h = Both Top and Bottom
T/B
50h A0h 0001h Program Suspend, 00 = not supported, 01 = supported Yes
57h AEh 0004h Bank Organization, 00 = data at 4Ah is zero
X = number of banks 4
58h B0h 0027h Bank A information
X = number of blocks in Bank A 39
Common Flash Interface (CFI) M29DW128F
82/94
59h B2h 0060h Bank B information
X = number of blocks in Bank B 96
5Ah B4h 0060h Bank C information
X = number of blocks in Bank C 96
5Bh B6h 0027h Bank D information
X = number of blocks in Bank D 39
1. The values given in the above table are valid for both packages.
Table 39. Primary Algorithm-Specific Extended Query table (continued)(1)
Address Data Description Value
x16 x8
Table 40. Security Code Area
Address Data Description
x16 x8
61h C3h, C2h XXXX
64 bit: unique device number
62h C5h, C4h XXXX
63h C7h, C6h XXXX
64h C9h, C8h XXXX
M29DW128F Extended Memory Block
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Appendix C Extended Memory Block
The M29DW128F has an extra block, the Extended Block, that can be accessed using a
dedicated command.
This Extended Block is 128 Words in x16 mode and 256 bytes in x8 mode. It is used as a
security block (to provide a permanent security identification number) or to store additional
information.
The Extended Block is divided into two memory areas of 64 Words each:
●The first one is Factory Locked.
●The second one is Cust omer Lockable. It is up to the customer to protect it from
progr am oper a tions . It s statu s is indicated by bit DQ6 and DQ7. When DQ7 is set to ‘1’
and DQ6 to ‘0’, it ind icat es t hat t h is seco nd mem ory area is Custo mer Lo ckab le. When
DQ7 and DQ6 are both set to ‘1’, it indicates that t he second part of the Extend ed Block
is Customer Locked and p rotected from prog ram operat ions. Bit DQ7 being
permanently locked to either ‘1’ or ‘0’ is another security feature which ensures that a
customer lockable device cannot be used instead of a factory locked one.
Bits DQ6 and DQ7 are the most sig nif icant bits in the Extended Block Protection Indicator
and a specific procedure must be followed to read it. See “Section 3.6.2: Verify Extended
Block Protection Indicator” and Table 5 and Table 8, Block Protection, for details of how to
read bit DQ7.
The Extended Block can only be acce ssed wh en the device is in Extended Block mode. For
details of how the Extended Block mode is entered and exited, refer to the Section 6.1.11:
Program command and Section 6.3.2: Exit Extended Block command paragraphs, and to
Table 15 and Table 16, Block Protection Commands.
C.1 Factory Locked Section of the Extended Bloc k
The first section of The Exten ded Block is permanently protected from program operations
and cannot be unpr otected. The Random Number, Electronic Serial Number (ESN) and
Security Identification Number (see Table 41: Extended Bloc k Address and Data) are written
in this section in the factory.
Extended Memory Block M29DW128F
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C.2 Customer Lockable Section of the Extended Block
The device is delivered with the second section of th e Extended Block "Customer Lockable": bits DQ7
and DQ6 are set to '1' and '0' respectively. It is up to the customer to pro gram and protect this section of
the Extended Block but care must be taken because the protection is not reversible.
There are thre e ways of protecting this sectio n:
●Issue the Enter Ext ended Bloc k command to place the de vice in Extended Bloc k mode, then use th e
In-System Technique with RP either at VIH or at VID. Refer to Section D.2: In-System technique in
Appendix D: High Voltage Block Protection, and to the corresponding flowcharts Figure 25 and
Figure 26 for a detailed explanation of the technique).
●Issue the Enter Ext ended Bloc k command to place the de vice in Extended Bloc k mode, then use th e
Programmer Technique. Refer to Section D.1: Programmer technique in Appendix D: High Voltage
Block Protection, and to the corresponding flowcharts Figure 23 and Figure 24 for a detailed
explanation of the technique).
●Issue a Set Extended Block Protection bit command to program the Extended Bloc k Protection bit to
‘1’ thus preventing the second section of the Extended Block from being programmed.
Bit DQ6 of the Extended Block Protection Indicator is automatically set to '1' to indicate that the second
section of the Extended Block is Customer Locked.
Once the Extended Block is programmed and protected, the Exit Extended Block command must be
issued to exit the Extended Block mode and return the device to Read mode.
Table 41. Extended Block Address and Data
Device Address(1) Data
x8 x16 Factory Locked Customer Lockable
M29DW128F
000000h-
00007Fh 000000h-
00003Fh Random Number, ESN(2),
Security Identification Number Unavailable
000080h-
0000FFh 000040h-
00007Fh Unavailable Determined by
Customer
1. See Table 34: Block Addresses and Protection Groups.
2. ESN = Electronic Serial Number.
M29DW128F High Voltage Block Protection
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Appendix D High Voltage Block Protection
The High Voltage Block Prote ction can b e used to pr ev en t an y o per ation f rom mo difying the
data stored in the memory. The blocks are protected in groups, ref er to Appendix A , Table 34
for details of the Protection Groups. Once protected, Program and Erase operations within
the protected group fail to change the data.
There are three techniques that can be used to control Block Protection, these are the
Programmer technique, the In-System technique and Temporary Unprotection. Temporary
Unprotection is controlled by the Reset/Block Temporary Unprotection pin, RP; this is
descr ibe d in th e S ign al De scriptions section.
To protect the Extended Block issue the Enter Extended Block command and then use
either the Programmer or In-System technique. Once protected issue the Exit Extended
Bloc k comm and to return to read mode. The Extended Block protection is ir reversible, once
protected th e protection cannot be undone.
D.1 Programmer technique
The Programmer technique uses high (VID) voltage levels on some of the bus pins. These
cannot be achieved using a standard microprocessor bus, therefore the technique is
recommended only for use in Programming Equipment.
To protect a group of blocks f ollow the flowchart in Figure 23: Programme r equipment Group
Protect flo wchart. To unpro tect the whole chip it is necessary to pro tect all of the groups first,
then all grou ps can be unprotected at the same time . To unprotect the chip follo w Figure 24:
Programmer equipment Ch ip Unprotect flowchart. Table 42: Programmer technique Bus
operations, 8-bit or 16-bit mode, gives a summary of each operation.
The timing on these flowcharts is critical. Care should be taken to ensure that, where a
pause is specified, it is followed as closely as possible. Do not abort the pr ocedure before
reaching the end. Chip Unprotect can take several seconds and a user message should be
provided to show that the operation is progressing.
High Voltage Bloc k Protection M29DW128F
86/94
D.2 In-System technique
The In-System technique requires a high voltage level on the Reset/Blocks Temporary Unprotect pin, RP
(1). This can be achieved without violating the maximum ratings of the components on the
microprocessor bus, therefore this technique is suitable for use after the memory has been fitted to the
system.
To protect a group of blocks follow the flowchart in Figure 25: In-System equipment Group Protect
flowchart. To unprotect the whole chip it is necessary to protect all of the groups first, then all the groups
can be unprotected at the same time. To unprotect the chip follow Figure 26: In-System equipment Chip
Unprotect flowchart.
The timing on these flowcharts is critical. Care should be taken to ensure that, where a pause is
specified, it is followed as closely as possible. Do not allow the microprocessor to service interrupts that
will upset the timing and do not abort the procedure before reaching the end. Chip Unprotect can take
several seconds and a user message should be provided to show that the operation is progressing.
Note: RP can be either at VIH or at VID when using the In-System Techniqu e to protect the
Extended Block.
Table 42. Programmer technique Bus operations, 8-bit or 16-bit mode
Operation E G W Address Inputs
A0-A22 Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
Block (Group) Protect(1) VIL VID VIL Pulse A9 = VID, A12-A22 Block Address
Others = X X
Chip Unprotect VID VID VIL Pulse A6 = VIH, A9 = VID, A12 = VIH,
A15 = VIH Others = X X
Block (Group) Protect
Verify VIL VIL VIH
A0 = VIL, A1 = VIH, A2-A7 = VIL,
A9 = VID, A12-A22 Bloc k Address
Others = X
Pass = xx01h
Retr y = xx00h.
Block (Group) Unprotect
Verify VIL VIL VIH
A0 = VIL, A1 = VIH, A2 -A5 = VIL,
A6 = VIH, A7 = VIL,
A9 = VID, A12-A22 Bloc k Address
Others = X
Pass = xx00h
Retr y = xx01h.
1. Block Protection Groups are shown inAppendix A, Table 34.
M29DW128F Flowcharts
87/94
Appendix E Flowcharts
Figure 23. Programmer equipment Group Protect flowchart
1. Block Protection Groups are shown in Appendix A, Table 34.
ADDRESS =
GROUP ADDRESS
AI07756b
G, A9 = VID,
E = VIL
n = 0
Wait 4µs
Wait 100µs
W = VIL
W = VIH
E, G = VIH, A1 = VIH
A0, A2 to A7 = VIL
A9 = VIH
E, G = VIH
++n
= 25
START
FAILPASS
YES
NO
DATA = 01h
YES
NO
W = VIH
E = VIL
Wait 4µs
G = VIL
Wait 60ns
Read DATA
Verify Protect Set-upEnd
A9 = VIH
E, G = VIH
Flowcharts M29DW128F
88/94
Figure 24. Programmer equipment Chip Unprotect flowchart
1. Block Protection Groups are shown in Appendix A, Table 34.
PROTECT ALL
GROUPS
AI07757b
A6, A12, A15 = VIH(1)
E, G, A9 = VID
DATA = 00h
W = VIH
E, G = VIH
ADDRESS = CURRENT
GROUP ADDRESS
A0, A2, A3, A4, A5, A7 = VIL
A1, A6 = VIH
Wait 10ms
INCREMENT
CURRENT GROUP
n = 0
CURRENT GROUP = 0
Wait 4µs
W = VIL
++n
= 1000
START
YES
YESNO
NO LAST
GROUP
YES
NO
E = VIL
Wait 4µs
G = VIL
Wait 60ns
Read DATA
FAIL PASS
Verify Unprotect Set-upEnd
A9 = VIH
E, G = VIH A9 = VIH
E, G = VIH
M29DW128F Flowcharts
89/94
Figure 25. In-System equipment Group Protect flowchart
1. Block Protection Groups are shown in Appendix A, Table 34.
2. RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Block.
AI07758b
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
n = 0
Wait 100µs
WRITE 40h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
RP = VIH ++n
= 25
START
PASS
YES
NO
DATA = 01h
YES
NO
RP = VIH
Wait 4µs
Verify Protect Set-upEnd
READ DATA
ADDRESS = GROUP ADDRESS
A1 = VIH, A0, A2 to A7 = VIL
RP = VID
ISSUE READ/RESET
COMMAND
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
ISSUE READ/RESET
COMMAND
FAIL
Flowcharts M29DW128F
90/94
Figure 26. In-System equipment Chip Unprotect flowc hart
1. Block Protection Groups are shown in Appendix A, Table 34.
AI07759d
WRITE 60h
ANY ADDRESS WITH
A0, A2, A3, A4, A5, A7 = VIL
A1, A6 = VIH
n = 0
CURRENT GROUP = 0
Wait 10ms
WRITE 40h
ADDRESS =
CURRENT GROUP ADDRESS
A1 = VIH, A0, A2 to A7 = VIL
RP = VIH
++n
= 1000
START
FAIL PASS
NO
DATA = 00h YESNO
RP = VIH
Wait 4µs
READ DATA
ADDRESS =
CURRENT GROUP ADDRESS
A1 = VIH, A0, A2 to A7 = VIL
RP = VID
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
PROTECT ALL GROUPS
INCREMENT
CURRENT GROUP
LAST
GROUP
YES
NO
WRITE 60h
ANY ADDRESS WITH
A1 = VIH, A0, A2 to A7 = VIL
Verify Unprotect Set-upEnd
YES
M29DW128F Flowcharts
91/94
Figure 27. Write to Buffer and Program flowchart and Pseudo Code
1. n+1 is the number of addresses to be programmed.
2. A Write to Buffer and Program Abort and Reset must be issued to return the device in Read mode.
Write to Buffer F0h
Command,
Block Address
AI08968b
Start
Write Buffer Data,
Start Address
YES
Abort Write
to Buffer
FAIL OR ABORT(5)
NO
Write n(1),
Block Address
X = 0
Write Next Data,
Program Address Pair
X = X-1
Program Buffer
to Flash Block Address
Read Status Register
(DQ1, DQ5, DQ7) at
Last Loaded Address
YES
DQ7 = Data
NO
Check Status Register
(DQ5, DQ7) at
Last Loaded Address
(3)
NO
YES
Write to a Different
Block Address
Write to Buffer and
Program Aborted(2)
NO DQ5 = 1
YES
NO
DQ1 = 1
YES
YES
DQ7 = Data
(4)
NO
END
First Part of the
Write to Buffer and Program Command
X=n
Flowcharts M29DW128F
92/94
3. When the block address is specified, any address in the selected block address space is acceptable. However when
loading Write Buffer address with data, all addresses must fall within the selected Write Buffer page.
4. DQ7 must be checked since DQ5 and DQ7 may change simultaneously.
5. If this flowchart location is reached because DQ5=’1’, then the Write to Buffer and Program command failed. If this
flowchart location is reached because DQ1=’1’, then the Write to Buffer and Program command aborted. In both cases, the
appropriate reset command must be issued to return the device in Read mode: a Reset command if the operation failed, a
Write to Buffer and Program Abort and Reset command if the operation aborted.
6. See Table 11 and Table 12, for details on Write to Buffer and Program command sequence.
M29DW128F Revision history
93/94
Revision history
Table 43. Document revision history
Date Revision Changes
02-Aug-2005 1.0 First Issue derived from the M29DW128F/FS datasheet revision 0.5.
13-Oct-2005 2.0 Table 18: Program, Erase Times and Program, Erase Endurance
Cycles updated.
02-Dec-2005 3.0 Datasheet status updated to “FULL DATASHEET“.
Program Suspend Latency time updated in Table 18: Program, Er ase
Times and Program, Erase Endurance Cycles.
13-Mar-2006 4.0
Table 19: Status Register bits: DQ7 changed into DQ7 for Program,
Program Error and Program during Erase Suspend operations.
Section 6.2.1: Write to Buffer and Program command, and
Section 6.2.2: Write to Buffer and Program Confirm command
updated to cover 8-bit mode. Note 2, Note 3, and Note 4 updated in
Table 13: Fast Program Commands, 8-bit mode.
13-Jun-2006 5 Blank Verify command added in Section 6: Command inte rface.
Input/output supply voltage, VCCQ, removed.
20-Jun-2006 6 Address Inputs A7-A0 modifi ed for NVMPbi ts in Table 17: Protection
Command Addresses.
26-Oct-2006 7 Updated Table 19: Status Register bits; updated blank verify
command description and removed verify command in Section 6:
Command interface.
M29DW128F
94/94
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