- 1 -
K9F2G08U0C
Rev. 1.0, Jul. 2010
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SPECIFICATIONS WITHOUT NOTICE.
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2010 Samsung Electronics Co., Ltd. All rights reserved.
2Gb C-die NAND Flash
Single-Level-Cell (1bit/cell)
datasheet
- 2 -
datasheet FLASH MEMORY
K9F2G08U0C
Rev. 1.0
Revision History
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the
specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions about device. If you have any questions, please contact
the SAMSUNG branch office near your office.
Revision No. History Draft Date Remark Editor
0.0 1. Initial issue Aug. 12, 2009 Advance -
0.1 1. DC Parameter is chagned
2. Typo is modified Dec. 09, 2009 Advance -
0.2 1. Max tR value has changed from 35us to 40us
2. Min tRC/ tWC value has changed from 30ns to 25ns
3. Chapter 2.9, 2.10 AC parameters revised
4. Chapter 2.3 ISB2 MAX value has changed from 50 to 80
5. Chapter 7.0 2plane Erase NOT supported.
6. Chapter 2.8 tDBSY value has changed.
May. 03, 2010 Advance H.K.Kim
1.0 1. FBGA pkg code change H->B
2. Device code(3th Cycle) has changed from 15h to 95h
3. Chapter 1.5.1 63ball FBGA pkg dimension has changed.
Jul. 09, 2010 Final H.K.Kim
- 3 -
Table Of Contents
datasheet FLASH MEMORY
K9F2G08U0C
Rev. 1.0
1.0 INTRODUCTION ........................................................................................................................................................4
1.1 Product List..............................................................................................................................................................4
1.2 Features...........................................................................................................................................................4
1.3 General Description.................................................................................................................................................4
1.4 Pin Configuration (TSOP1)......................................................................................................................................5
1.4.1Package Dimensions .........................................................................................................................................5
1.5 Pin Configuration (FBGA)........................................................................................................................................6
1.5.1Package Dimensions .........................................................................................................................................7
1.6 Pin Description ........................................................................................................................................................8
2.0 PRODUCT INTRODUCTION......................................................................................................................................9
2.1 Absolute Maximum Ratings.....................................................................................................................................10
2.2 Recommended Operating Conditions .....................................................................................................................10
2.3 DC And Operating Characteristics(Recommended opera ting conditi ons otherwise noted.)...................................10
2.4 Valid Block...............................................................................................................................................................11
2.5 AC Test Condition . .. ................................................................................................................................................11
2.6 Capacitance(TA=25°C, VCC= 3.3V, f=1.0MHz)......................................................................................................11
2.7 Mode Selection........................................................................................................................................................11
2.8 Program / Erase Characteristics........................................................................................................................12
2.9 AC Timing Characteristics for Command / Address / Data Input ............................................................................12
2.10 AC Characteristics for Operation...........................................................................................................................13
3.0 NAND FLASH TECHNICAL NOTES ..........................................................................................................................14
3.1 Initial Invalid Block(s)...............................................................................................................................................14
3.2 Identifying Initial Invalid Block(s) .............................................................................................................................14
3.3 Error In Write Or Read Operation............................................................................................................................15
3.4 Addressing for Program Operation..........................................................................................................................17
4.0 SYSTEM INTERFACE USING CE DON’T-CARE. .....................................................................................................18
4.1 Command Latch Cycle ............................................................................................................................................19
4.2 Address Latch Cycle................................................................................................................................................19
4.3 Input Data Latch Cycle............. ... ................................................................... ... ......................................................20
4.4* Serial Access Cycle after Read(CLE=L, WE=H, ALE=L).......................................................................................20
4.5 Status Read Cycle..................................................................................................................................................21
4.6 Read Operation.......................................................................................................................................................21
4.7 Read Operation(Intercepted by CE)........................................................................................................................22
4.8 Random Data Output In a Page ........................ ................... .................... ... ................... ... ...... ...............................23
4.9 Page Program Operation.........................................................................................................................................24
4.10 Page Program Operation with Random Data Input.......... .....................................................................................25
4.11 Copy-Back Program Operation With Random Data Input ....................................................................................26
4.12 Two- Plane Page Program operatoin ....................................................................................................................27
4.13 Block Erase Operation...........................................................................................................................................28
4.14 Read ID Operation.................................................................................................................................................28
5.0 DEVICE OPERATION ................................................................................................................................................31
5.1 Page Read ...............................................................................................................................................................31
5.2 Page Program .........................................................................................................................................................33
5.3 Copy-back Program.................................................................................................................................................34
5.4 Read Status.............................................................................................................................................................35
5.5 Read ID ...................................................................................................................................................................36
5.6 Reset.......................................................................................................................................................................36
5.7 READY/BUSY .........................................................................................................................................................37
6.0 DATA PROTECTION & POWER UP SEQUENCE................................ .................... ................... ... ..........................38
7.0 BACKWARD COMPATIBILITY INFORMATION.........................................................................................................39
- 4 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
1.0 INTRODUCTION
1.1 Product List
1.2 Features
1.3 General Description
Offered in 256Mx8bit, the K9F2G08U0C is a 2G-bit NAND Flash Memory with spare 64M-bit. Its NAND cell provides the most cost-effective solution for
the solid state application market. A program operation can b e performed in typical 250μs on the (2K+64)Byte page and an erase operation can be per-
formed in typical 2ms on a (128K+4K)Byte block. Data in the data register can be read out at 25ns cycle time per Byte. The I/O pins serve as the ports for
address and data input/output as well as command input. The on-chip write controller automates al l program and erase functions including pulse repeti-
tion, where required, and internal verification and margining of data. Even the write-intensive systems can take advantage of the K9F2G08U0Cs
extended reliability of 100K program/erase cycles by providing ECC(Error Correcting Code) with real time mapping-out algorithm. The K9F2G08U0C is
an optimum solution for large nonvolatile storage applications such as solid state file storage and other portable applications requiring non-volatility.
Part Number Vcc Range Organization PKG Type
K9F2G08U0C-S 2.7 ~ 3.6v x8 TSOP1
K9F2G08U0C-B 2.7 ~ 3.6v x8 63 FBGA
Voltage Supply
- 3.3V device(K9F2G08U0C): 2.70V ~ 3.60V
Organization
- Memory Cell Array : (256M + 8M) x 8bit
- Data Register : (2K + 64) x 8bit
Automatic Program and Erase
- Page Program : (2K + 64)Byte
- Block Erase : (128K + 4K)Byte
Page Read Operation
- Page Size : (2K + 64)Byt e
- Random Read : 40μs(Max.)
- Serial Access : 25ns(Min.)
Fast Write Cycle Time
- Page Program time : 250μs(Typ.)
- Block Erase Time : 2ms(Typ.)
Command/Address/Data Multiplexed I/O Port
Hardware Data Protection
- Program/Erase Lockout During Power Transitions
Reliable CMOS Floating-Gate Technology
-Endurance & Data Retention : Refor to the gualification report
-ECC regnirement : 1 bit / 528bytes Command Driven Operation
Unique ID for Copyright Protection
Package :
- K9F2G08U0C-SCB0/SIB0 : Pb-FREE PACKAGE
48 - Pin TSOP I (12 x 20 / 0.5 mm pitch)
- K9F2G08U0C-BCB0/BIB0 : Pb-FREE PACKAGE
63 - ball FBGA (9 x 11 / 0.8 mm pitch)
- 5 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
1.4 Pin Configuration (TSOP1)
K9F2G08U0C-SCB0/SIB0
48-pin TSOP1
Standard Type
12mm x 20mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
N.C
N.C
N.C
N.C
N.C
N.C
R/B
RE
CE
N.C
N.C
Vcc
Vss
N.C
N.C
CLE
ALE
WE
WP
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
I/O7
I/O6
I/O5
I/O4
N.C
N.C
N.C
Vcc
Vss
N.C
N.C
N.C
I/O3
I/O2
I/O1
I/O0
N.C
N.C
N.C
N.C
1.4.1 Package Dimensions
48-PIN LEAD FREE PLA STIC THIN SMALL OUT-LINE PACKAGE TYPE(I)
48 - TSOP1 - 1220F
Unit :mm/Inch
0.787
±
0.008
20.00
±
0.20
#1
#24
0.20
+0.07
-0.03
0.008
+0.003
-0.001
0.50
0.0197
#48
#25
0.488
12.40MAX
12.00
0.472
0.10
0.004 MAX
0.25
0.010
()
0.039
±
0.002
1.00
±
0.05
0.002
0.05 MIN
0.047
1.20 MAX
0.45~0.75
0.018~0.030
0.724
±
0.004
18.40
±
0.10
0~8
°
0.010
0.25 TYP
0.125
+0.075
0.035
0.005
+0.003
-0.001
0.50
0.020
()
- 6 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
1.5 Pin Configuration (FBGA)
K9F2G08U0C-BCB0/BIB0
R/B/WE/CEVssALE/WP
/RE CLE
NCNC
NC NC Vcc
NCNC I/O0
I/O1NC NC Vcc I/O5 I/O7
VssI/O6I/O4I/O3I/O2Vss
NC
NC
NC
NC NC
NC
NC NC
NC
NC
NC
NC
NC NC NC
NC
NC
NC
NC
NC
N.C
N.C N.C
N.C
N.C N.C
N.C
N.C
N.C N.C
N.CN.C
N.C N.C
N.C
3456 1 2
A
B
C
D
G
E
F
H
Top View
- 7 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
1.5.1 Package Dimensions
9.00±0.10
#A1
11.00±0.10
0.32±0.05
0.90±0.10
0.10 MAX
4321
A
B
C
D
G
63-0.45±0.05
9.00±0.10
(Datum B)
0.2
M
A B
0.80 x1 1= 8.80
0.80 x 9= 7.20
65
E
F
H
J
K
L
M
(Datum A)
8710 9 0.80 0.40 3.60
0.80 0.40 4.40
11.00±0.10
A
#A1 INDEX MARK
B
63-Ball FBGA (measured in millimeters)
TOP VIEW SIDE VIEW BOTTOM VIEW
- 8 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
1.6 Pin Description
NOTE :
Connect all VCC and VSS pins of each device to common power supply outputs.
Do not leave VCC or VSS disconnected.
Pin Name Pin Function
I/O0 ~ I/O7DATA INPUTS/OUTPUTS
The I/O pins are used to input command, address and data, and to output data during read operations. The I/O pins float to
high-z when the chip is deselected or when the outputs are disabled.
CLE COMMAND LATCH ENABLE
The CLE input controls the activating path for commands sent to the command register. When active high, commands are
latched into the command register through the I/O ports on the rising edge of the WE signal.
ALE ADDRESS LATCH ENABLE
The ALE input controls the activating path for address to the internal address registers. Addresses are latched on the rising
edge of WE with ALE high.
CE CHIP ENABLE
The CE input is the device selection control. When the device is in the Busy state, CE high is ignored, and the device does
not return to standby mode in program or erase op eration.
RE READ ENABLE
The RE input is the serial data-out control, and when active drives the da ta onto the I/O bus. Data is valid tREA after the fall-
ing edge of RE which also increments the internal column address counter by one.
WE WRITE ENABLE
The WE input controls writes to the I/O port. Commands, address and data are latched on the rising edge of the WE pulse.
WP WRITE PROTECT
The WP pin provides inadvertent program/erase protection during power transitions. The internal high voltage generator is
reset when the WP pin is active low.
R/B
READY/BUSY OUTPUT
The R/B output indicates the status of the device operation. When low, it indicates that a program, erase or random read
operation is in process and returns to high state upon completion. It is an open drain output and does not float to high-z con-
dition when the chip is deselected or when outputs are disabled.
Vcc POWER
VCC is the power supply for device.
Vss GROUND
N.C NO CONNECTION
- 9 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
2.0 PRODUCT INTRODUCTION
NAND Flash Memory has addresses multiplexed into 8 I/Os. This scheme dramatically reduces pin counts and allows system upgrades to future densities
by maintaining consistency in system board design. Command, address and data are all written through I/O's by bringing WE to low while CE is low.
Those are latched on the rising edge of WE. Command Latch Enable(CLE) and Address Latch Enable(ALE) are used to multiplex command and address
respectively, via the I/O pins. Some commands require one bus cycle. For example, Reset Command, S t atus Read Command, etc. require just one cycle
bus. Some other commands, like page read and block erase and page program, require two cycles: one cycle for setup and the other cycle for execution..
Page Read and Page Program need the same five address cycles following the r equired command input. In Block Erase operation, however, only the
three row address cycles are used. Device operations are selected by writing specific commands into the command register. Table 1 defines the specific
commands of the K9G2G08U0C.
[Table 1] Command Sets
NOTE :
1) Random Data Input/Output can be executed in a page.
2) Any command between 11h and 81h is prohibited except 70h/F1h and FFh.
Caution :
Any undefined command inputs are prohibited except for above command set of Table 1.
Function 1st Cycle 2nd Cycle Acceptable Command during Busy
Read 00h 30h
Read for Copy Back 00h 35h
Read ID 90h -
Reset FFh - O
Page Program 80h 10h
Copy-Back Program 85h 10h
Two-Plane Page Program(2) 80h---11h 81h---10h
Block Erase 60h D0h
Random Data Input(1) 85h -
Random Data Output(1) 05h E0h
Read Status 70h - O
Read Status 2 F1h - O
- 10 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
2.1 Absolute Maximum Ratings
NOTE :
1) Minimum DC voltage is -0.6V on input/output pins. During transitions, this level may undershoo t to -2.0V for periods <30ns.
Maximum DC voltage on input/out put pins is VCC+0.3V which, during transitions, may overshoot to VCC+2.0V for periods <20ns.
2) Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the cond itions
as detailed in the operation al sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2.2 Recommended Operating Conditions
(Voltage reference to GND, K9F2G08U0C-XCB0 :TA=0 to 70°C, K9F2G08U0C-XIB0:TA=-40 to 85°C)
2.3 DC And Operating Characteristics(Recommended operating conditions otherwise noted.)
NOTE :
1) VIL can undershoot to -0.4V and VIH can overshoot to VCC +0.4V for durations of 20 ns or less.
2) Typical value is measured at Vcc= 3.3V, TA=25°C. Not 100% tested.
Parameter Symbol Rating Unit
Voltage on any pin relative to VSS
VCC -0.6 to +4.6
VVIN -0.6 to +4.6
VI/O -0.6 to Vcc + 0.3 (< 4.6V)
Temperature Under Bias K9F2G08U0C-XCB0 TBIAS -10 to +125 °C
K9F2G08U0C-XIB0 -40 to +125
Storage Temperature K9F2G08U0C-XCB0 TSTG -65 to +150 °C
K9F2G08U0C-XIB0
Short Circuit Current IOS 5mA
Parameter Symbol 3.3V Unit
Min Typ. Max
Supply Voltage VCC 2.7 3.3 3.6 V
Supply Voltage VSS 000V
Parameter Symbol Test Conditions 3.3V Unit
Min Typ Max
Operating
Current
Page Read with Serial
Access ICC1tRC=25ns
CE=VIL, IOUT=0mA -2035
mA
Program ICC2-
Erase ICC3-
Stand-by Current(TTL) ISB1CE=VIH, WP=0V/VCC --1
Stand-by Current(CMOS) ISB2CE=VCC-0.2, WP=0V/VCC -1080
μA
Input Leakage Current ILI VIN=0 to Vcc(max) - - ±10
Output Leakage Current ILO VOUT=0 to Vcc(max) - - ±10
Input High Voltage VIH(1) - 0.8xVcc - Vcc+0.3
V
Input Low Voltage, All inputs VIL(1) - -0.3 - 0.2xVcc
Output High Voltage Level VOH K9F2G08B0C: IOH=-100μA
K9F2G08U0C: IOH=-400μA2.4 - -
Output Low Voltage Level VOL K9F2G08B0C: IOL=100μA
K9F2G08U0C: IOL=2.1mA --0.4
Output Low Current(R/B)IOL(R/B)K9F2G08B0C: VOL=0.1V
K9F2G08U0C: VOL=0.4V 810-mA
- 11 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
2.4 Valid Block
NOTE :
1) The device may include initial invalid blocks when first shipped. Additional invalid blocks may develop while being us ed. The number of valid blocks is presented with both
cases of invalid blocks considered. Invalid blocks are defined as bl ocks that contain one or more bad bits. Do not erase or program factory-marked bad blocks. Refer to the
attached technical notes for appropriate management of invalid blocks.
2) The 1st block, which is placed on 00h block address, is guaranteed to be a valid block up to 1K program/erase cycles with 1bit/528Byte ECC.
3) The number of valid block is on the basis of single plane operations, and this may be decreased with two plane operations.
2.5 AC Test Condition
(K9F2G08U0C-XCB0 :TA=0 to 70°C, K9F2G08U0C-XIB0:TA=-40 to 85°C, K9F2G08U0C: Vcc=2.7V~3.6V unless otherwise noted)
2.6 Capacitance(TA=25°C, VCC= 3.3V, f=1.0MHz)
NOTE :
Capacita nce is periodically sampled and not 100% tested.
2.7 Mode Selection
NOTE :
1) X can be VIL or VIH.
2) WP should be biased to CMOS high or CMOS low for standby.
Parameter Symbol Min Typ. Max Unit
K9F2G08U0C NVB 2,008 - 2,048 Blocks
Parameter K9F2G08U0C
Input Pulse Levels 0V to Vcc
Input Rise and Fall Times 5ns
Input and Output Timing Levels Vcc/2
Output Load 1 TTL GATE and CL=50pF
Item Symbol Test Condition Min Max Unit
Input/Output Capacitance CI/O VIL=0V - 10 pF
Input Capacitance CIN VIN=0V - 10 pF
CLE ALE CE WE RE WP Mode
HLL HX
Read Mode Command Input
L H L H X Address Input(5clock)
HLL HH
Write Mode Command Input
L H L H H Address Input(5clock)
LLL HH
Data Input
LLLH X Data Output
X X X X H X During Read(Busy)
X X X X X H During Program(Busy)
X X X X X H During Erase(Busy)
XX(1) X X X L Write Protect
XXHXX
0V/VCC(2) Stand-by
- 12 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
2.8 Program / Erase Characteristics
NOTE :
1) Typical value is measured at Vcc=3.3V, TA=25°C. Not 100% tested.
2) Typical program time is defined as the time within which more than 50% of the whole pages are programmed at 3.3V Vcc and 25°C temperature.
2.9 AC Timing Characteristics for Command / Address / Data Input
NOTE :
1) The transition of the corresponding cont rol pins must occur only once while WE is held low
2) tADL is the time from the WE rising edge of final address cycle to the WE rising edge of first data cycle
Parameter Symbol Min Typ Max Unit
Program Time tPROG - 250 750 μs
Dummy Busy time for Two-Plane Page Program tDBSY -2.5 3 μs
Number of Partial Program Cycles Nop - - 4 cycles
Block Erase Time tBERS -210ms
Parameter Symbol Min Max Unit
CLE Setup Time tCLS(1) 12 - ns
CLE Hold Time tCLH 5-ns
CE Setup Time tCS(1) 20 - ns
CE Hold Time tCH 5-ns
WE Pulse Width tWP 12 - ns
ALE Setup Time tALS(1) 12 - ns
ALE Hold Time tALH 5-
ns
Data Setup Time tDS(1) 12 - ns
Data Hold Time tDH 5-ns
Write Cycle Time tWC 25 - ns
WE High Hold Time tWH 10 - ns
Address to Data Loading Time tADL(2) 100 - ns
- 13 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
2.10 AC Characteristics for Operation
NOTE :
1) If reset command(FFh) is written at Ready state, the device goes into Busy for maximum 5μs.
Parameter Symbol Min Max Unit
Data Transfer from Cell to Register tR-40μs
ALE to RE Delay tAR 10 - ns
CLE to RE Delay tCLR 10 - ns
Ready to RE Low tRR 20 - ns
RE Pulse Width tRP 12 - ns
WE High to Busy tWB -100
ns
Read Cycle Time tRC 25 - ns
RE Access Time tREA -20ns
CE Access Time tCEA -25ns
RE High to Output Hi-Z tRHZ -100ns
CE High to Output Hi-Z tCHZ -30ns
CE High to ALE or CLE Don’t Care tCSD 10 - ns
RE High to Output Hold tRHOH 15 - ns
CE High to Output Hold tCOH 15 - ns
RE High Hold Time tREH 15 - ns
Output Hi-Z to RE Low tIR 0-ns
RE High to WE Low tRHW 100 - ns
WE High to RE Low tWHR 60 - ns
Device Resetting Time(Read/Program/Erase) tRST -5/10/500(1) μs
- 14 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
3.0 NAND FLASH TECHNICAL NOTES
3.1 Initial Invalid Block(s)
[Figure 1] Flow chart to create initial invalid block table
Initial invalid blocks are defined as blocks that contain one or more initial invalid bits whose reliability is not guaranteed by Samsung. The information
regarding the initial invalid block(s) is called the initial invalid block information. Devices with initial invalid block(s) have the same quality level as devices
with all valid blocks and have the same AC and DC characteristics. An initial invalid block(s) does not affect the performance of valid block(s) because it
is isolated from the bit line and the common source line by a select transistor. The system design must be able to mask out the initial invalid block(s) via
address mapping. The 1st block, which is placed on 00h block address, is guaranteed to be a valid block up to 1K program/erase cycles with 1bit/528Byte
ECC.
3.2 Identifying Initial Invalid Block(s)
All device locations are erased(FFh) except locations where the initial invalid block(s) information is written prior to shipping. The initial invalid block(s)
status is defined by the 1st byte in the spare area. Samsung makes sure that either the 1st or 2nd page of every initial invalid block has non-FFh data at
the column address of 2048. Since the initial invalid block information is also erasable in most cases, it is impossible to recover the information once it has
been erased. Therefore, the system must be able to recognize the initial invalid block(s) based on the original initial invalid block information and create
the initial invalid block table via the following suggested flow chart(Figure 1). Any intentional erasure of the original initial invalid block information is pro-
hibited.
*Check "FFh" at the column addres s 2048
Star t
Set Block Address = 0
Check "FFh"
Increment Block Address
Last Block ?
End
No
Yes
Yes
Create (or update) No
Initial
of the 1st and 2nd page in the block
Invalid Block(s) Table
- 15 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
NAND Flash Technical Notes (Continued)
3.3 Error In Write Or Read Operation
Within its life time, additional invalid blocks may develop with NAND Flash memory. Refer to the qualification report for the actual data.The following pos-
sible failure modes should be considered to implement a highly reliable system. In the case of status read failure after erase or program, block replace-
ment should be done. Because program status fail during a page program does not affect the data of the other pages in the same block, block
replacement can be executed with a page-sized buffer by finding an erased empty block and reprogramming the current target data and copying the rest
of the replaced block. In case of Read, ECC must be employed. To improve the efficiency of memory space, it is recommended that the read or verifica-
tion failure due to single bit error be reclaimed by ECC without any block replacement. The said additional block failure rate does not include those
reclaimed blocks.
ECC
: Error Correcting Code --> Hamming Code etc.
Example) 1bit correction & 2bit detection
Program Flow Chart
Failure Mode Detection and Countermeasure sequence
Write Erase Failure Status Read after Erase --> Block Replacement
Program Failure Status Read after Program --> Block Replacement
Read Single Bit Failure Verify ECC -> ECC Correction
Start
I/O 6 = 1 ?
I/O 0 = 0 ?
No
*
Write 80h
Write Address
Write Data
Write 10h
Read Sta tu s R eg ister
Program Completed
or R/B = 1 ?
Program E rror
Yes
No
Yes
: If program operation results in an error, map out
the block including the page in error and copy the
targ et da ta to another bloc k.
*
- 16 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
NAND Flash Technical Notes (Continued)
* Step1
When an error happens in the nth page of the Block ’A’ during erase or program operation.
* Step2
Copy the data in the 1st ~ (n-1)th page to the same location of another free block. (Block ’B’)
* Step3
Then, copy the nth page data of the Block ’A’ in the buffer memory to the nth page of the Block ’B’.
* Step4
Do not erase or program to Block ’A’ by creating an ’invalid block’ table or other appropriate scheme.
Erase Flow Chart
Star t
I/O 6 = 1 ?
I/O 0 = 0 ?
No
*
Write 60h
Write Block Address
Write D0h
Read Status Register
or R/B = 1 ?
Erase Error
Yes
No
: If erase operation results in an error, map out
the failing block and replace it with another blo ck.
*
Erase Completed
Yes
Read Flow Chart
Start
Verify ECC
No
Write 00h
Write Address
Read Data
ECC Generation
Reclaim the Error
Page Read Completed
Yes
Write 30h
Block Replac e m ent
Buffer memory of the controller.
1st Block A
Block B
(n-1)th
nth
(page)
{
1st
(n-1)th
nth
(page)
{
an error occurs. 1
2
- 17 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
3.4 Addressing for Program Operation
Within a block, the pages must be programmed con secutively fro m the LSB(least significant bit) page of the block to the MSB( most significant bit) pages
of the block. Random page address programming is prohibited. In this case, the definition of LSB page is the LSB among the pages to be programmed.
Therefore, LSB doesn't need to be page 0.
From the LSB page to MSB page
DATA IN: Data (1) Data (64)
(1)
(2)
(3)
(32)
(64)
Data register
Page 0
Page 1
Page 2
Page 31
Page 63
Ex.) Random page program (Prohibition)
DATA IN: Data (1) Data (64)
(2)
(32)
(3)
(1)
(64)
Data register
Page 0
Page 1
Page 2
Page 31
Page 63
:
:
:
:
[Figure 3] Read Operation with CE don’t-care.
[Figure 2] Program Operation with CE don’t-care.
- 18 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.0 SYSTEM INTERFACE USING CE DON’T-CARE.
For an easier system interface, CE may be inactive during the data-loading or serial access as shown below. The internal 2,112byte data registers are
utilized as separate buffers for this operation and the system design gets more flexible. In addition, for voice or audio applications which use slow cycle
time on the order of μ-seconds, de-activating CE during the data-loading and serial access would provide significant savings in power consumption.
NOTE :
Device I/O DATA ADDRESS
I/Ox Data In/Out Col. Add1 Col. Add2 Row Add1 Row Add2 Row Add3
K9F2G08U0C I/O 0 ~ I/O 7 2,112byte A0~A7 A8~A11 A12~A19 A20~A27 A28
CE
WE
tWP
tCH
tCS
Address(5Cycles)80h Data Input
CE
CLE
ALE
WE
Data Input
CE don’t-care
10h
tCEA
out
tREA
CE
RE
I/O
0
~
7
I/Ox
Address(5Cycle)00h
CE
CLE
ALE
WE
I/O
X
Data Output(serial access)
CE don’t-care
R/B
tR
RE
30h
- 19 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.1 Command Latch Cycle
CE
WE
CLE
ALE
Command
tCLS
tCS
tCLH
tCH
tWP
tALS tALH
tDS tDH
I/Ox
4.2 Address Latch Cycle
CE
WE
CLE
ALE
Col. Add1
tCS tWC
tWP
tALS
tDS tDH
tALH tALS
tWH
tWC
tWP
tDS tDH
tALH tALS
tWH
tWC
tWP
tDS tDH
tALH tALS
tWH
tDS tDH
tWP
I/Ox
Col. Add2 Row Add1 Row Add2
tWC
tWH
tALH tALS
tDS tDH
Row Add3
tALH
tCLS
- 20 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.3 Input Data Latch Cycle
CE
CLE
WE
DIN 0 DIN 1 DIN final
ALE
tALS
tCLH
tWC
tCH
tDS tDH tDS tDH tDS tDH
tWP
tWH
tWP tWP
I/Ox
4.4* Serial Access Cycle after Read(CLE=L, WE=H, ALE=L)
RE
CE
R/B
Dout Dout Dout
tRC
tREA
tRR
tRHOH
tREA
tREH tREA tCOH
tRHZ
I/Ox
tCHZ
tRHZ
NOTE :
Transition is measured at ±200mV from steady state voltage with load.
This parameter is sampled and not 100% tested.
tRHOH starts to be valid when fr equency is lower than 33MHz.
- 21 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.5 Status Read Cycle
CE
WE
CLE
RE
Status Output
tCLR
tCLH
tWP tCH
tDS tDH tREA
tIR tRHOH
tCOH
tWHR
tCEA
tCLS
I/Ox
tCHZ
tRHZ
tCS
70h/F1h
4.6 Read Operation
CE
CLE
R/B
WE
ALE
RE
Busy
00h
Col. Add1 Col. Add2 Row Add1
Dout N Dout N+1
Column Address Row Address
tWB tAR
tRtRC tRHZ
tRR
Dout M
tWC
Row Add2
30h
tCLR
I/Ox
Row Add3
tCSD
- 22 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.7 Read Operation(Intercepted by CE)
CE
CLE
R/B
WE
ALE
RE
Busy
00h
Dout N Dout N+1 Dout N+2
Row Address
Column Address
tWB tAR
tCHZ
tR
tRR
tRC
30h
I/Ox
Col. Add1 Col. Add2 Row Add1 Row Add2 Row Add3
tCOH
tCLR
tCSD
- 23 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.8 Random Data Output In a Page
CE
CLE
R/B
WE
ALE
RE
Busy
00h Dout N Dout N+1
Row Address
Column Address
tWB
tAR
tR
tRR
30h 05h
Column Address
Dout M Dout M+1
I/Ox
Col. Add1 Col. Add2 Row Add1 Row Add2 Col Add1 Col Add2
Row Add3
tCLR
E0h
tWHR
tREAtRC
tRHW
- 24 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.9 Page Program Operation
CE
CLE
R/B
WE
ALE
RE
80h 70h I/O
0
Din
NDin 10h
M
SerialData
Input Command Column Address Row Address 1 up to m Byte
Serial Input Program
Command Read Status
Command
I/O
0
=0 Successful Program
I/O
0
=1 Error in Program
tPROG
tWB
tWC tWC tWC
I/Ox
Co.l Add1 Col. Add2 Row Add1 Row Add2 Row Add3
tAD tWHR
NOTE :
tADL is the time from the WE rising edge of final address cycle to the WE rising edge of first data cycle.
- 25 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.10 Page Program Operation with Random Data Input
CE
CLE
R/B
WE
ALE
RE
80h 70h I/O
0
Din
NDin 10h
M
Serial Data
Input Command Column Address Row Address Serial Input Program
Command Read Status
Command
tPROG
tWB
tWC tWC
85h
Random Data
Input Command Column Address
tWC
Din
JDin
K
Serial Input
I/Ox
Col. Add1 Col. Add2 Row Add1 Row Add2 Col. Add1 Col. Add2
Row Add3
NOTE :
tADL tADL tWHR
tADL is h time from the WE rising edge of final address cycle to the WE risin g edge of first data cycle.
- 26 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.11 Copy-Back Program Operation With Random Data Input
CE
CLE
R/B
WE
ALE
RE
00h I/O
x
85h
Column Address Row Address
I/O
0
=0 Successful Progra m
I/O
0
=1 Error in Pro gram
tPROG
tWB
tWC
Busy
tWB
tR
Busy
10h
Copy-Back Data
Input Command
35h
Column Address Row Address
Data 1 Data N
I/Ox
Col Add1 Col Add2 Row Add1 Row Add2 Col Add1 Col Add2 Row Add1 Row Add2 Row Add3
Row Add3
70h
NOTE :
tADL
tWHR
Read Status Command
tADL is the time from the WE rising edge of final addr ess cycle to the WE rising edge of first data cycle.
- 27 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.12 Two- Plane Page Program operatoin
80h
I/O0~7
R/B
11h
Ex.) Two-Plane Page Program
tDBSY
Address & Data Input 81h 10h
Address & Data Input 70h/F1h
tPROG
Col Add1,2 & Row Add 1,2,3
2112 Byte Data
CE
CLE
R/B
WE
ALE
RE
80h Din
NDin 11h
M
Serial Data
Input Command
Column Address
Program
tDBSY
tWB
tWC
Command
(Dummy)
Din
N10h
tPROG
tWB
I/O
Program Confirm
Command
(True)
81h
70h/F1h
Page Row Address
I/Ox
1 up to 2112 Byte Data
Serial Input
Din
M
Read Status Command
t
DBSY :
typ. 2.5us
max. 3us
Col Add1 Col A dd2 Row Add1 Row Add2 Row Add3 Col Add1 Col Add2 Row Add1 Row Add2 Row Add3
Col Add1,2 & Row Add 1,2,3
2112 Byte Data
A0 ~ A11 : Valid
A12 ~ A17 : Fixed ’Low’
A18 : Fixed ’Low’
A19 ~ A29 : Fixed ’Low’
A0 ~ A11 : Valid
A12 ~ A17 : Valid
A18 : Fixed ’High’
A19 ~ A29 : Valid
NOTE:
Any command between 11h and 81h is prohibited except 70h and FFh.
Note
tWHR
- 28 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
4.13 Block Erase Operation
CE
CLE
R/B
WE
ALE
RE
60h
Erase Command Read Status
Command I/O
0
=1 Error in Erase
D0h 70h I/O 0
Busy
tWB tBERS
I/O
0
=0 Successful Erase
Row Address
tWC
Auto Block Erase
Setup Command
I/Ox
Row Add1 Row Add2 Row Add3
tWHR
4.14 Read ID Operation
CE
CLE
WE
ALE
RE
90h
Read ID Command Maker Code Device Code
00h ECh
t
REA
Address 1cycle
I/Ox
t
AR
Device 4th cyc.
Code 3rd cyc. 5th cyc.
Device Device Code (2nd Cycle) 3rd Cycle 4th Cycle 5th Cycle
K9F2G08U0C DAh 10h 95h 44h
- 29 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
ID Definition Table
3rd ID Data
4th ID Data
Description
1st Byte
2nd Byte
3rd Byte
4th Byte
5th Byte
Maker Code
Device Code
Internal Chip Number, Cell Type, Number of Simultaneously Programmed Pages, Etc
Page Size, Block Size,Redundant Area Size, Organization, Serial Access Minimum
Plane Number, Plane Size
Description I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
Internal Chip Number
1
2
4
8
0 0
0 1
1 0
1 1
Cell Type
2 Level Cell
4 Level Cell
8 Level Cell
16 Level Cell
0 0
0 1
1 0
1 1
Number of
Simultaneously
Programmed Pages
1
2
4
8
0 0
0 1
1 0
1 1
Interleave Program
Between multiple chips Not Support
Support 0
1
Cache Program Not Support
Support 0
1
Description I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
Page Size
(w/o redundant area )
1KB
2KB
4KB
8KB
0 0
0 1
1 0
1 1
Block Size
(w/o redundant area )
64KB
128KB
256KB
512KB
0 0
0 1
1 0
1 1
Redundant Area Size
( byte/512byte) 8
16 0
1
Organization x8
x16 0
1
Serial Access Minimum
50ns/30ns
25ns
Reserved
Reserved
0
1
0
1
0
0
1
1
- 30 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5th ID Data
Description I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
Plane Number
1
2
4
8
0 0
0 1
1 0
1 1
Plane Size
(w/o redundant Area)
64Mb
128Mb
256Mb
512Mb
1Gb
2Gb
4Gb
8Gb
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Reserved 0 0 0
- 31 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.0 DEVICE OPERATION
[Figure 4] Read Operation
5.1 Page Read
Page read is initiated by writing 00h-30h to the command register alo ng with five address cycles. After initial power up, 00h command is latched. There-
fore only five address cycles and 30h comma nd in itiates that operatio n after initial pow er up. The 2,112 bytes of data within the selected page are trans-
ferred to the data registers in less than 40μs(tR). The system controller can detect the completion of this data transfer(tR) by analyzing the output of R/B
pin. Once the data in a page is loaded into the data registers, they may be read out in 25ns cycle time by sequentially pulsing RE. The repetitive high to
low transitions of the RE clock make the device output the data starting from the selected column address up to the last column address.
The device may output random data in a page instead of the consecutive sequential data by writing random data output command. The column address
of next data, which is going to be out, may be changed to the address which follows random data output command. Random data output can be operated
multiple times regardless of how many times it is done in a page.
Address(5Cycle)00h
Col. Add.1,2 & Row Add.1,2,3
Data Output(Serial Access)
Data Field Spare Field
CE
CLE
ALE
R/B
WE
RE
t
30h
I/Ox
[Figure 5] Random Data Output In a Page
- 32 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
Address
00h Data Output
R/B
RE
t
30h Address
05h E0h
5Cycles 2Cycles Data Output
Data Field Spare Field Data Field Spare Field
I/Ox
Col. Add.1,2 & Row Ad d. 1,2 ,3 Col. Add.1,2
[Figure 7] Random Data Input In a Page
[Figure 6] Program & Read Status Operation
- 33 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.2 Page Program
The device is programmed basically on a page basis, but it does allow multiple partial page programming of a word or consecutive bytes up to 2,112, in a
single page program cycle. The number of consecutive partial page programming operation within the same page without an intervening erase operation
must not exceed 4 times for a single page. The addressing should be done in sequential order in a block. A page program cycle consists of a serial data
loading period in which up to 2,112bytes of data may be loaded into the data register, followed by a non-volatile programming period where the loaded
data is programmed into the appropriate cell.
The serial data loading period begins by inputting the Serial Data Input command(80h), followed by the five cycle address inputs and then serial data
loading. The words other than those to be programmed do not need to be loaded. The device supports random data input in a page. The column address
for the next data, which will be entered, may be changed to the address which follows random data input command(85h). Random data input may be
operated multiple times regardless of how many times it is done in a page. The Page Program confirm command(10h) initiates the programming process.
Writing 10h alone without previously entering the serial data will not initiate the programming process. The internal write state controller automatically exe-
cutes the algorithms and timings necessary for program and verify, thereby freeing the system controller for other tasks. Once the program process starts,
the Read Status Register command may be entered to read the status register. The system controller can detect the completion of a program cycle by
monitoring the R/B output, or the Status bit(I/O 6) of the Status Register. Only the Read Status command and Reset command are valid while program-
ming is in progress. When the Page Program is complete, the Write Status Bit(I/O 0) may be checked(Figure 6). The internal write verify detects only
errors for "1"s that are not successfully programmed to "0"s. The command register remains in Read St atus command mode until another valid command
is written to the command register.
80h
R/B
Address & Data Input I/O0 Pass
Data
10h 70h
Fail
tPROG
I/Ox
Col. Add.1,2 & Row Add.1,2,3
"0"
"1"
80h
R/B
Address & Data Input I/O0 Pass
10h 70h
Fail
tPROG
85h Address & Data Input
I/Ox
Col. A dd. 1,2 & Row Add1,2,3 Col. Add.1,2
Data Data
"0"
"1"
[Figure 9] Page Copy-Back Program Operation with Random Data Input
[Figure 8] Page Copy-Back Program Operation
- 34 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.3 Copy-back Program
Copy-Back program with Read for Copy-Back is configur ed to quickly and efficiently rewrite data stored in one page without data re-loading when the bit
error is not in data stored. Since the time-consuming re-loading cycles are removed, the system performance is improved. The be nefit is especially obvi-
ous when a portion of a block is updated and the rest of the block also needs to be copied to the newly assigned free block. Copy-Back operation is a
sequential execution of Read for Copy-Back and of copy-back program with the destination page address. A read operation with "35h" command and the
address of the source page moves the whole 2,112-byte data into the internal data buffer. A bit error is checked by sequential read ing the data output. In
the case where there is no bit error , the data do not need to be reloaded. Therefore Copy-Back program operation is initiated by issuing Page-Copy Data-
Input command (85h) with destination page address. Actual programmin g operation begins after Program Confirm command (10h ) is issued. Once the
program process starts, the Read Status Register command (70h) may be ente red to read the status register. The system controller can detect the com-
pletion of a program cycle by monitoring the R/B output, or the Status bit(I/O 6) of the Status Register. When the Copy-Back Program is complete, the
Write Status Bit(I/O 0) may be checked(Figure 8 & Figure 9). The command register remains in Read Status command mode until another valid com-
mand is written to the command register.
During copy-back program, data modification is possible using random data input command (85h) as shown in Figure 9.
NOTE :
Copy-Back Program operation is allowed only within the same memory plane.
"0"
"1"
00h
R/B
Add.(5Cycles) I/O0 Pass
85h 70h
Fail
tPROG
Add.(5Cycles)
tR
Source Address Destination Address
35h 10h
I/Ox
Col. Add.1,2 & Row Add.1,2,3
Col. Add.1,2 & Row Add.1,2,3
00h
R/B
Add.(5Cycles) 85h 70h
tPROG
Add.(5Cycles)
tR
Source Address Destination Address
Data
35h 10h
85h Data
Add.(2Cycles)
There is no limitation for the number of repetition.
I/Ox
Col. Add.1,2 & Row Add.1,2,3 Col. Add.1,2 & Row Add.1,2,3 Col. Add.1,2
- 35 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.4 Read Status
The device contains a S tatus Register which may be read to find out whether program or erase operation is completed, and whether the program or erase
operation is completed successfully. After writing 70h/F1h command to the command register, a read cycle outputs the content of the Status Register to
the I/O pins on the falling edge of CE or RE, whichever occurs last. This two line control allows the system to poll the progress of each device in multiple
memory connections even when R/B pins are common-wired. RE or CE does not need to be toggled for updated status. Refer to Table 2 for specific Sta-
tus Register definitions and Table 3 for specific F1h Status Register definitions. The command register remains in Status Read mode until further com-
mands are issued to it. Therefore, if the status register is read during a random read cycle, the read command(00h) should be given before starting read
cycles.
[Table 2] Read Status Register Definition for 70h Command
NOTE :
I/Os defined ’Not use’ are recommended to be masked out when Read Status is being executed.
[Table 3] Read Status 2 Register Definition for F1h Command
NOTE :
I/Os defined ’Not use’ are recommended to be masked out when Read Status is being executed.
I/O Page Program Block Erase Read Definition
I/O 0 Pass/Fail Pass/Fail Not use Pass : "0" Fail : "1"
I/O 1 Not use Not use Not use Don’t -cared
I/O 2 Not use Not use Not use Don’t -cared
I/O 3 Not Use Not Use Not Use Don’t -cared
I/O 4 Not Use Not Use Not Use Don’t -cared
I/O 5 Not Use Not Use Not Use Don’t -cared
I/O 6 Ready/Busy Ready/Busy Ready/Busy Busy : "0" Ready : "1"
I/O 7 Write Protect Write Protect Write Protect Protected : "0" Not Protected : "1" "1"otected
I/O No. Page Program Block Erase Read Definition
I/O 0 Chip Pass/Fail Chip Pass/Fail Not use Pass : "0" Fail : "1"
I/O 1 Plane0 Pass/Fail Plane0 Pass/Fail Not use Pass : "0" Fail : "1"
I/O 2 Plane1 Pass/Fail Plane1 Pass/Fail Not use Pass : "0" Fail : "1"
I/O 3 Not Use Not Use Not Use Don’t -cared
I/O 4 Not Use Not Use Not Use Don’t -cared
I/O 5 Not Use Not Use Not Use Don’t -cared
I/O 6 Ready/Busy Ready/Busy Ready/Busy Busy : "0" Ready : "1"
I/O 7 Write Protect Write Protect Write Protect Protected : "0" Not Protected : "1" "1"otected
[Figure 10] Read ID Operation
[Figure 11] RESET Operation
- 36 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.5 Read ID
The device contains a product identification mode, initiated by writing 90h to the command register, followed by an address input of 00h. Five read cycles
sequentially output the manufacturer code(ECh), and the device code and 3rd, 4th, 5th cycle ID respectively. The command register remains in Read ID
mode until further commands are issued to it. Figure 10 shows the operation sequence.
5.6 Reset
The device offers a reset feature, executed by writing FFh to the command register. When the device is in Busy state during random read, program or
erase mode, the reset operation will abort these operations. The contents of memory cells being altered are no longer valid, as the data will be partially
programmed or erased. The command register is cleared to wait for the next command, and the St atus Register is cleared to value C0h when WP is high.
If the device is already in reset state a new reset command will be accepted by the command register. The R/B pin changes to low for tRST after the
Reset command is written. Refer to Figure 11 below.
Device Device Code (2nd Cycle) 3rd Cycle 4th Cycle 5th Cycle
K9F2G08U0C DAh 10h 95h 44h
After Power-up After Reset
Operation mode Mode 00h Command is latched Waiting for next command
CE
CLE
I/O
X
ALE
RE
WE
90h 00h
Address. 1cycle Maker code Device code
tCEA
tAR
tREA
tWHR
tCLR
Device 4th Cyc.
Code
ECh 3rd Cyc. 5th Cyc.
FFh
I/O
X
R/B
tRS
[Figure 12] Rp vs tr ,tf & Rp vs ibusy
- 37 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
5.7 READY/BUSY
The device has a R/B output that provides a hardware method of indicating the completion of a page program, erase and random read completion. The R/
B pin is normally high but transitions to low after program or erase command is written to the command register or random read is started after address
loading. It returns to high when the internal controller has finished the operation. The pin is an open-drain driver thereby allowing two or more R/B outputs
to be Or-tied. Because pull-up resistor value is related to tr(R/B) and current drain during busy(ibusy) , an appropriate value can be obtained with the fol-
lowing reference chart(Figure 12). Its value can be determined by the following guidance.
VCC
R/B
open drain output
Device
GND
Rp ibusy
Busy
Ready Vcc
VOH
tf tr
VOL
C
L
3.3V device - VOL : 0.4V, VOH : 2.4V
tr,tf [s]
Ibusy [A]
Rp(ohm)
Ibusy
tr
@ Vcc = 3.3V, Ta = 25°C , CL = 50pF
1K 2K 3K 4K
100n
200n 2m
1m
50
tf
100
150
200
3.6 3.6 3.6 3.6
2.4
1.2
0.8 0.6
where IL is the sum of the input currents of all devices tied to the R/B pin.
Rp value guidance
Rp(max) is determined by maximum permissible limit of tr
Rp(min, 3.3V part) = VCC(Max.) - VOL(Max.)
IOL + ΣIL = 3.2V
8mA + ΣIL
[Figure 13] AC Waveforms for Power Transition
- 38 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
6.0 DATA PROTECTION & POWER UP SEQUENCE
The device is designed to offer protection from any involuntary program/erase during power-transitions. An internal voltage detector disables all functions
whenever Vcc is below about 2V(3.3V device). WP pin provides hardware protection and is recommended to be kept at VIL during power-up and power-
down. A recovery time of minimum 1ms is required before internal circuit gets ready for any command sequences as shown in Figure 13. The two step
command sequence for program/erase provides additional software protection.
V
CC
WP
High
WE
Ready/Busy
5 ms max Operation
1ms
~ 2.3V ~ 2.3V
Invalid Don’t care
Don’t care
- 39 -
datasheet FLASH MEMORY
Rev. 1.0
K9F2G08U0C
7.0 BACKWARD COMPATIBILITY INFORMATION
The below table shows key parameters which a re different with previous product, so that the host could use make or modify its firmware without misun-
derstanding of compatibility. But the below table don’t have all the difference with previous product, but only key parameters’ changing which can be
defined to have an effect on developing NAND firmware or hardware.
Previous Generation Product Current Generation Device
Part ID K9F2G08U0B K9F2G08U0C
Features & Operations
1. tR: 25us / tPROG(200us typ, 700us Max)
tERS(1.5ms Typ, 10ms Max)
2. tRC/tWC: 25ns
3. 2 Plane Program: support
4. 2Plane Copy-back Program: Support
5. 2Plane Erase: Support
6. EDO: Support
1. tR: 40us / tPROG(250us typ, 750us Max)
tERS(2ms Typ, 10ms Max)
2. tRC/tWC: 25ns
3. 2 Plane Program: support
4. 2Plane Copy-back Program: N/A
5. 2Plane Erase: N/A
6. EDO: N/A
AC & DC Parameters 1. ICC1 : 15mA(typ)/ 30mA(max)
2. ICC2 : 15mA(typ)/ 30mA(max)
3. ICC3 : 15mA(typ)/ 30mA(max)
1. ICC1 : 20mA(typ)/ 35mA(max)
2. ICC2 : 20mA(typ)/ 35mA(max)
3. ICC3 : 20mA(typ)/ 35mA(max)
Technical Notes