Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
DDR2 Unbuffered SODIMM
200pin Unbuffered SODIMM based on 512Mb B-die
64bit Non-ECC
* Samsung Electronics reserves the right to change products or specification without notice.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN RELATION TO SAMSUNG PRODUCTS,
AND IS SUBJECT TO CHANGE WITHOUT NOTICE.
NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS GRANTING ANY LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE,
TO ANY INTELLECTUAL PROPERTY RIGHTS IN SAMSUNG PRODUCTS OR TECHNOLOGY. ALL
INFORMATION IN THIS DOCUMENT IS PROVIDED
ON AS "AS IS" BASIS WITHOUT GUARANTEE OR WARRANTY OF ANY KIND.
1. For updates or additional information about Samsung products, contact your nearest Samsung office.
2. Samsung products are not intended for use in life support, critical care, medical, safety equipment, or similar
applications where Product failure couldresult in loss of life or personal or physical harm, or any military or
defense application, or any governmental procurement to which special terms or provisions may apply.
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
DDR2 Unbuffered SODIMM Ordering Information
Note: “Z” and “Y” of Part number(11th digit) stand for Lead-free products.
Note: “3” of Part number(12th digit) stand for Dummy Pad PCB products.
Part Number Density Organization Component Composition Number of
Rank Height
M470T3354BG(Z)3-CD5/CC 256MB 32Mx64 32Mx16(K4T51163QB)*4 1 30mm
M470T3354BG(Z)0-CD5/CC 256MB 32Mx64 32Mx16(K4T51163QB)*4 1 30mm
M470T3354BZ3-LD5/CC 256MB 32Mx64 32Mx16(K4T51163QB)*4 1 30mm
M470T3354BZ0-LD5/CC 256MB 32Mx64 32Mx16(K4T51163QB)*4 1 30mm
M470T6554BG(Z)3-CD5/CC 512MB 64Mx64 32Mx16(K4T51163QB)*8 2 30mm
M470T6554BG(Z)0-CD5/CC 512MB 64Mx64 32Mx16(K4T51163QB)*8 2 30mm
M470T6554BZ3-LD5/CC 512MB 64Mx64 32Mx16(K4T51163QB)*8 2 30mm
M470T6554BZ0-LD5/CC 512MB 64Mx64 32Mx16(K4T51163QB)*8 2 30mm
M470T2953BS(Y)3-CD5/CC 1GB 128Mx64 64Mx8(K4T51083QB)*16 2 30mm
M470T2953BS(Y)0-CD5/CC 1GB 128Mx64 64Mx8(K4T51083QB)*16 2 30mm
M470T2953BY3-LD5/CC 1GB 128Mx64 64Mx8(K4T51083QB)*16 2 30mm
M470T2953BY0-LD5/CC 1GB 128Mx64 64Mx8(K4T51083QB)*16 2 30mm
Features
Performance range
JEDEC standard 1.8V ± 0.1V Power Supply
•V
DDQ = 1.8V ± 0.1V
200 MHz fCK for 400Mb/sec/pin, 267MHz fCK for 533Mb/sec/pin
4 Banks
Posted CAS
Programmable CAS Latency: 3, 4, 5
Programmable Additive Latency: 0, 1 , 2 , 3 and 4
Write Latency(WL) = Read Latency(RL) -1
Burst Length: 4 , 8(Interleave/nibble sequential)
Programmable Sequential / Interleave Burst Mode
Bi-directional Differential Data-Strobe (Single-ended data-strobe is an optional feature)
Off-Chip Driver(OCD) Impedance Adjustment
On Die Termination
Average Refresh Period 7.8us at lower than a TCASE 85°C, 3.9us at 85°C < TCASE < 95 °C
- support High Temperature Self-Refresh rate enable feature
Package: 60ball FBGA - 64Mx8 , 84ball FBGA - 32Mx16
All of Lead-free products are compliant for RoHS
Note: For detailed DDR2 SDRAM operation, please refer to Samsung’s Device operation & Timing diagram.
D5(DDR2-533) CC(DDR2-400) Unit
Speed@CL3 400 400 Mbps
Speed@CL4 533 400 Mbps
CL-tRCD-tRP 4-4-4 3-3-3 CK
Address Configuration
Organization Row Address Column Address Bank Address Auto Precharge
64Mx8(512Mb) based Module A0-A13 A0-A9 BA0-BA1 A10
32Mx16(512Mb) based Module A0-A12 A0-A9 BA0-BA1 A10
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Pin Configurations (Front side/Back side)
Note : NC = No Connect; NC, TEST(pin 163)is for bus analysis tool and is not connected on normal memory modules.
Pin Front Pin Back Pin Front Pin Back Pin Front Pin Back Pin Front Pin Back
1VREF 2VSS 51 DQS2 52 DM2 101 A1 102 A0 151 DQ42 152 DQ46
3VSS 4DQ453
VSS 54 VSS 103 VDD 104 VDD 153 DQ43 154 DQ47
5 DQ0 6 DQ5 55 DQ18 56 DQ22 105 A10/AP 106 BA1 155 VSS 156 VSS
7DQ18 VSS 57 DQ19 58 DQ23 107 BA0 108 RAS 157 DQ48 158 DQ52
9VSS 10 DM0 59 VSS 60 VSS 109 WE 110 S0 159 DQ49 160 DQ53
11 DQS012 VSS 61 DQ24 62 DQ28 111 VDD 112 VDD 161 VSS 162 VSS
13 DQS0 14 DQ6 63 DQ25 64 DQ29 113 CAS 114 ODT0 163 NC, TEST 164 CK1
15 VSS 16 DQ7 65 VSS 66 VSS 115 NC/ S1 116 A13 165 VSS 166 CK1
17 DQ2 18 VSS 67 DM3 68 DQS3117 VDD 118 VDD 167 DQS6168 VSS
19 DQ3 20 DQ12 69 NC 70 DQS3 119 NC/ODT1 120 NC 169 DQS6 170 DM6
21 VSS 22 DQ13 71 VSS 72 VSS 121 VSS 122 VSS 171 VSS 172 VSS
23 DQ8 24 VSS 73 DQ26 74 DQ30 123 DQ32 124 DQ36 173 DQ50 174 DQ54
25 DQ9 26 DM1 75 DQ27 76 DQ31 125 DQ33 126 DQ37 175 DQ51 176 DQ55
27 VSS 28 VSS 77 VSS 78 VSS 127 VSS 128 VSS 177 VSS 178 VSS
29 DQS1 30 CK0 79 CKE0 80 NC/CKE1 129 DQS4 130 DM4 179 DQ56 180 DQ60
31 DQS1 32 CK081VDD 82 VDD 131 DQS4 132 VSS 181 DQ57 182 DQ61
33 VSS 34 VSS 83 NC 84 NC 133 VSS 134 DQ38 183 VSS 184 VSS
35 DQ10 36 DQ14 85 BA2 86 NC 135 DQ34 136 DQ39 185 DM7 186 DQS7
37 DQ11 38 DQ15 87 VDD 88 VDD 137 DQ35 138 VSS 187 VSS 188 DQS7
39 VSS 40 VSS 89 A12 90 A11 139 VSS 140 DQ44 189 DQ58 190 VSS
41 VSS 42 VSS 91 A9 92 A7 141 DQ40 142 DQ45 191 DQ59 192 DQ62
43 DQ16 44 DQ20 93 A8 94 A6 143 DQ41 144 VSS 193 VSS 194 DQ63
45 DQ17 46 DQ21 95 VDD 96 VDD 145 VSS 146 DQS5195 SDA 196 VSS
47 VSS 48 VSS 97 A5 98 A4 147 DM5 148 DQS5 197 SCL 198 SA0
49 DQS2 50 NC 99 A3 100 A2 149 VSS 150 VSS 199 VDDSPD 200 SA1
Pin Description
Pin Name Function Pin Name Function
CK0,CK1 Clock Inputs, positive line SDA SPD Data Input/Output
CK0,CK1 Clock Inputs, negative line SA1,SA0 SPD address
CKE0,CKE1 Clock Enables DQ0~DQ63 Data Input/Output
RAS Row Address Strobe DM0~DM7 Data Masks
CAS Column Address Strobe DQS0~DQS7 Data strobes
WE Write Enable DQS0~DQS7 Data strobes complement
S0,S1 Chip Selects TEST Logic Analyzer specific test pin (No connect on So-DIMM)
A0~A9, A11~A13 Address Inputs VDD Core and I/O Power
A10/AP Address Input/Autoprecharge VSS Ground
BA0,BA1 SDRAM Bank Address VREF Input/Output Reference
ODT0,ODT1 On-die termination control VDDSPD SPD Power
SCL Serial Presence Detect(SPD) Clock Input NC Spare pins, No connect
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Input/Output Functional Description
Symbol Type Function
CK0-CK1
CK0-CK1Input
The system clock inputs. All address and command lines are sampled on the cross point of the rising edge of CK and falling
edge of CK . A Delay Locked Loop (DLL) circuit is driven from the clock input and output timing for read operations is syn-
chronized to the input clock.
CKE0-CKE1 Input Activates the DDR2 SDRAM CK signal when high and deactivates the CK signal when low, By deactivating the clocks, CKE
low initiates the Power Down mode or the Self Refesh mode.
S0-S1 Input
Enables the associated DDR2 SDRAM command decoder when low and disables the command decoder when high. When
the command decoder is disabled, new commands are ignored but previous operations continue. Rank 0 is selected by S0,
Rank 1 is selected by S1. Ranks are also called “Physical banks”.
RAS, CAS, WE Input When sampled at the cross point of the rising edge of CK and falling edge of CK, CAS, RAS, and WE define the operation
to be executed by the SDRAM.
BA0~BA1 Input Selects which DDR2 SDRAM internal bank is activated.
ODT0~ODT1 Input Asserts on-die termination for DQ, DM, DQS, and DQS signals if enabled via the DDR2 SDRAM Extended Mode Register
Set (EMRS).
A0~A9,
A10/AP,
A11~A13
Input
During a Bank Activate command cycle, defines the row address when sampled at the cross point of the rising edge of CK
and falling edge of CK. During a Read or Write command cycle, defines the column address when sampled at the cross
point of the rising edge of CK and falling edge of CK. In addition to the column address, AP is used to invoke autoprecharge
operation at the end of the burst read or write cycle. If AP is high, autoprecharge is selected and BA0-BAn defines the bank
to be precharged. If AP is low, autoprecharge is disabled. During a Precharge command cycle, AP is used in conjunction
with BA0-BAn to control which bank(s) to precharge. If AP is high, all banks will be pecharged regardiess of the state of
BA0-BAn inputs. If AP is low, then BA0-BAn are used to define which bank to precharge.
DQ0~DQ63 In/Out Data Input/Output pins.
DM0~DM7 Input
The data write masks, associated with one data byte. In Write mode, DM operates as a byte
mask by allowing input data to be written if it is low but blocks the write operation if it is high. In
Read mode, DM lines have no effect.
DQS0~DQS7
DQS0~DQS7In/Out
The data strobes, associated with one data byte, sourced with data transfers. In Write mode,
the data strobe is sourced by the controller and is centered in the data window. In Read mode,
the data strobe is sourced by the DDR2 SDRAMs and is sent at the leading edge of the data
window. DQS signals are complements, and timing is relative to the crosspoint of respective
DQS and DQS If the module is to be operated in single ended strobe mode, all DQS signals
must be tied on the system board to VSS and DDR2 SDRAM mode registers programmed appropriately.
VDD,VDD
SPD,VSS
Supply Power supplies for core, I/O, Serial Presence Detect, and ground for the module.
SDA In/Out This is a bidirectional pin used to transfer data into or out of the SPD EEPROM. A resistor must be connected to VDD to act
as a pull up.
SCL Input This signal is used to clock data into and out of the SPD EEPROM. A resistor may be connected from SCL to VDD to act as
a pull up.
SA0~SA1 Input Address pins used to select the Serial Presence Detect base address.
TEST In/Out The TEST pin is reserved for bus analysis tools and is not connected on normal memory modules(SO-DIMMs).
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Functional Block Diagram: 512MB, 64Mx64 Module(Populated as 2 rank of x16 DDR2 SDRAMs)
M470T6554BG(Z)3/M470T6554BG(Z)0
S0
DQS1
DQS1
DM1
CS
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D0
LDQS
LDQS
LDM
DQS0
DQS0
DM0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS5
DQS5
DM5
CS
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D2
LDQS
LDQS
LDM
DQS4
DQS4
DM4
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS3
DQS3
DM3
CS
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D1
LDQS
LDQS
LDM
DQS2
DQS2
DM2
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS7
DQS7
DM7
CS
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D3
LDQS
LDQS
LDM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
C
K
E
O
D
T
C
K
E
O
D
T
C
K
E
O
D
T
C
K
E
O
D
T
CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D4
LDQS
LDQS
LDM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D5
LDQS
LDQS
LDM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
C
K
E
O
D
T
C
K
E
O
D
T
CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D6
LDQS
LDQS
LDM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D7
LDQS
LDQS
LDM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
C
K
E
O
D
T
C
K
E
O
D
T
S1
CKE0
CKE1
ODT0
ODT1
SPD
SA0
SCL
SDA
VSS DDR2 SDRAMs D0 - D7, SPD
VREF DDR2 SDRAMs D0 - D7
DDR2 SDRAMs D0 - D7, VDD and VDDQVDD
VDDSPD Serial PD
WP
SA1
SCL
A0
A1
A2
A0 - A13 DDR2 SDRAMs D0 - D7
RAS DDR2 SDRAMs D0 - D7
CAS DDR2 SDRAMs D0 - D7
WE DDR2 SDRAMs D0 - D7
BA0 - BA1 DDR2 SDRAMs D0 - D7
3 + 5%
Notes :
1. DQ,DM, DQS/DQS resistors : 22 Ohms ± 5%.
2. BAx, Ax, RAS, CAS, WE resistors : 3.0 Ohms ± 5%.
* Wire per Clock Loading
Table/Wiring Diagrams
* Clock Wiring
Clock Input DDR2 SDRAMs
*CK0/CK0
*CK1/CK1
4 DDR2 SDRAMs
4 DDR2 SDRAMs
3 + 5%
DQS6
DQS6
DM6
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Functional Block Diagram: 256MB, 32Mx64 Module(Populated as 1 rank of x16 DDR2 SDRAMs)
M470T3354BG(Z)3/M470T3354BG(Z)0
S0
DQS1
DQS1
DM1
CS
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D0
LDQS
LDQS
LDM
DQS0
DQS0
DM0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS5
DQS5
DM5
CS
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D2
LDQS
LDQS
LDM
DQS4
DQS4
DM4
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS3
DQS3
DM3
CS
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D1
LDQS
LDQS
LDM
DQS2
DQS2
DM2
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
DQS7
DQS7
DM7
CS
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D3
LDQS
LDQS
LDM
DQS6
DQS6
DM6
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
UDQS
UDQS
UDM
O
D
T
C
K
E
O
D
T
C
K
E
O
D
T
C
K
E
O
D
T
C
K
E
ODT0
CKE0
SPD
SA0
SCL
SDA
VSS DDR2 SDRAMs D0 - D3, SPD
VREF DDR2 SDRAMs D0 - D3
DDR2 SDRAMs D0 - D3, VDD and VDDQVDD
VDDSPD Serial PD
WP
SA1
SCL
A0
A1
A2
A0 - A13 DDR2 SDRAMs D0 - D3
RAS DDR2 SDRAMs D0 - D3
CAS DDR2 SDRAMs D0 - D3
WE DDR2 SDRAMs D0 - D3
BA0 - BA1 DDR2 SDRAMs D0 - D3
3
Notes :
1. DQ,DM, DQS/DQS resistors : 22 Ohms ± 5%.
2. BAx, Ax, RAS, CAS, WE resistors : 3.0 Ohms ± 5%.
* Wire per Clock Loading
Table/Wiring Diagrams
* Clock Wiring
Clock Input DDR2 SDRAMs
*CK0/CK0
*CK1/CK1
2 DDR2 SDRAMs
2 DDR2 SDRAMs
3 + 5%
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Functional Block Diagram: 1GB, 128Mx64 Module(Populated as 2 ranks of x8 DDR2 SDRAMs)
M470T2953BS(Y)3/M470T2953BS(Y)0
ODT0
CKE0
S1
ODT1
CKE1
SPD
SA0
SCL
SDA
VSS DDR2 SDRAMs D0 - D15, SPD
VREF DDR2 SDRAMs D0 - D15
DDR2 SDRAMs D0 - D15, VDD and VDDQVDD
VDDSPD Serial PD
WP
SA1
SCL
A0
A1
A2
A0 - A13 DDR2 SDRAMs D0 - D15
RAS DDR2 SDRAMs D0 - D15
CAS DDR2 SDRAMs D0 - D15
WE DDR2 SDRAMs D0 - D15
BA0 - BA1 DDR2 SDRAMs D0 - D15
10 + 5%
3 + 5%
S0
DQS1
DQS1
DM1
CS0
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D0
DQS
DQS
DM
DQS0
DQS0
DM0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
DQS5
DQS5
DM5
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D4
DQS
DQS
DM
DQS4
DQS4
DM4
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
DQS3
DQS3
DM3
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQS
DQS
DM
DQS2
DQS2
DM2
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
DQS7
DQS7
DM7
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQS
DQS
DM
DQS6
DQS6
DM6
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
O
D
T
0
C
K
E
0
CS1
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D8
DQS
DQS
DM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQS
DQS
DM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
O
D
T
1
C
K
E
1I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D12
DQS
DQS
DM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQS
DQS
DM
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
DQS
DQS
DM
CS0O
D
T
0
C
K
E
0
CS1O
D
T
1
C
K
E
1
CS0
D1 D5
O
D
T
0
C
K
E
0
CS1
D9
O
D
T
1
C
K
E
1
D13
CS0O
D
T
0
C
K
E
0
CS1O
D
T
1
C
K
E
1
CS0
D2 D6
O
D
T
0
C
K
E
0
CS1
D10
O
D
T
1
C
K
E
1
D14
CS0O
D
T
0
C
K
E
0
CS1O
D
T
1
C
K
E
1
CS0
D3 D7
O
D
T
0
C
K
E
0
CS1
D11
O
D
T
1
C
K
E
1
D15
CS0O
D
T
0
C
K
E
0
CS1O
D
T
1
C
K
E
1
Notes :
1. DQ,DM, DQS/DQS resistors : 22 Ohms ± 5%.
2. BAx, Ax, RAS, CAS, WE resistors : 10 Ohms ± 5%.
* Wire per Clock Loading
Table/Wiring Diagrams
* Clock Wiring
Clock Input DDR2 SDRAMs
*CK0/CK0
*CK1/CK1
8 DDR2 SDRAMs
8 DDR2 SDRAMs
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Absolute Maximum DC Ratings
Note :
1. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2. Storage Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51-2
standard.
AC & DC Operating Conditions
Recommended DC Operating Conditions (SSTL - 1.8)
Note : There is no specific device VDD supply voltage requirement for SSTL-1.8 compliance. However under all conditions VDDQ must be less than or equal
to VDD.
1. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the value of VREF is expected to be about 0.5
x VDDQ of the transmitting device and VREF is expected to track variations in VDDQ.
2. Peak to peak AC noise on VREF may not exceed +/-2% VREF(DC).
3. VTT of transmitting device must track VREF of receiving device.
4. AC parameters are measured with VDD, VDDQ and VDDL tied together.
Symbol Parameter Rating Units Notes
VDD Voltage on VDD pin relative to VSS - 1.0 V ~ 2.3 V V 1
VDDQ Voltage on VDDQ pin relative to VSS - 0.5 V ~ 2.3 V V 1
VDDL Voltage on VDDL pin relative to VSS - 0.5 V ~ 2.3 V V 1
VIN, VOUT Voltage on any pin relative to VSS - 0.5 V ~ 2.3 V V 1
TSTG Storage Temperature -55 to +100 °C 1, 2
Symbol Parameter Rating Units Notes
Min. Typ. Max.
VDD Supply Voltage 1.7 1.8 1.9 V
VDDL Supply Voltage for DLL 1.7 1.8 1.9 V 4
VDDQ Supply Voltage for Output 1.7 1.8 1.9 V 4
VREF Input Reference Voltage 0.49*VDDQ 0.50*VDDQ 0.51*VDDQ mV 1,2
VTT Termination Voltage VREF-0.04 VREF VREF+0.04 V 3
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Operating Temperature Condition
Note :
1. Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51.2
standard.
2. At 0 - 85 °C, operation temperature range are the temperature which all DRAM specification will be supported.
3. At 85 - 95 °C operation temperature range, doubling refresh commands in frequency to a 32ms period ( tREFI=3.9 us ) is required, and to enter to self
refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
Input DC Logic Level
Input AC Logic Level
AC Input Test Conditions
Notes:
1. Input waveform timing is referenced to the input signal crossing through the VIH/IL(AC) level applied to the device under test.
2. The input signal minimum slew rate is to be maintained over the range from VREF to VIH(AC) min for rising edges and the range from VREF to VIL(AC)
max for falling edges as shown in the below figure.
3. AC timings are referenced with input waveforms switching from VIL(AC) to VIH(AC) on the positive transitions and VIH(AC) to VIL(AC) on the negative
transitions.
Symbol Parameter Rating Units Notes
TOPER Operating Temperature 0 to 95 °C 1, 2, 3
Symbol Parameter Min. Max. Units Notes
VIH(DC) DC input logic high VREF + 0.125 VDDQ + 0.3 V
VIL(DC) DC input logic low - 0.3 VREF - 0.125 V
Symbol Parameter Min. Max. Units Notes
VIH(AC) AC input logic high VREF + 0.250 - V
VIL(AC) AC input logic low -V
REF - 0.250 V
Symbol Condition Value Units Notes
VREF Input reference voltage 0.5 * VDDQ V1
VSWING(MAX) Input signal maximum peak to peak swing 1.0 V 1
SLEW Input signal minimum slew rate 1.0 V/ns 2, 3
VDDQ
VIH(AC) min
VIH(DC) min
VREF
VIL(DC) max
VIL(AC) max
VSS
< AC Input Test Signal Waveform >
VSWING(MAX)
delta TRdelta TF
VREF - VIL(AC) max
delta TF
Falling Slew = Rising Slew = VIH(AC) min - VREF
delta TR
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
IDD Specification Parameters Definition
(IDD values are for full operating range of Voltage and Temperature)
Symbol Proposed Conditions Units Notes
IDD0
Operating one bank active-precharge current;
tCK = tCK(IDD), tRC = tRC(IDD), tRAS = tRASmin(IDD); CKE is HIGH, CS\ is HIGH between valid commands;
Address bus inputs are SWITCHING; Data bus inputs are SWITCHING
mA
IDD1
Operating one bank active-read-precharge current;
IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRC = tRC (IDD), tRAS = tRASmin(IDD), tRCD =
tRCD(IDD); CKE is HIGH, CS\ is HIGH between valid commands; Address bus inputs are SWITCHING; Data pattern
is same as IDD4W
mA
IDD2P
Precharge power-down current;
All banks idle; tCK = tCK(IDD); CKE is LOW; Other control and address bus inputs are STABLE; Data bus inputs are
FLOATING
mA
IDD2Q
Precharge quiet standby current;
All banks idle; tCK = tCK(IDD); CKE is HIGH, CS\ is HIGH; Other control and address bus inputs are STABLE; Data
bus inputs are FLOATING
mA
IDD2N
Precharge standby current;
All banks idle; tCK = tCK(IDD); CKE is HIGH, CS\ is HIGH; Other control and address bus inputs are SWITCHING;
Data bus inputs are SWITCHING
mA
IDD3P
Active power-down current;
All banks open; tCK = tCK(IDD); CKE is LOW; Other control and address bus
inputs are STABLE; Data bus inputs are FLOATING
Fast PDN Exit MRS(12) = 0mA mA
Slow PDN Exit MRS(12) = 1mA mA
IDD3N
Active standby current;
All banks open; tCK = tCK(IDD), tRAS = tRASmax(IDD), tRP = tRP(IDD); CKE is HIGH, CS\ is HIGH between valid
commands; Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING
mA
IDD4W
Operating burst write current;
All banks open, Continuous burst writes; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRAS = tRASmax(IDD), tRP
= tRP(IDD); CKE is HIGH, CS\ is HIGH between valid commands; Address bus inputs are SWITCHING; Data bus
inputs are SWITCHING
mA
IDD4R
Operating burst read current;
All banks open, Continuous burst reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = 0; tCK = tCK(IDD), tRAS = tRAS-
max(IDD), tRP = tRP(IDD); CKE is HIGH, CS\ is HIGH between valid commands; Address bus inputs are SWITCH-
ING; Data pattern is same as IDD4W
mA
IDD5B
Burst auto refresh current;
tCK = tCK(IDD); Refresh command at every tRFC(IDD) interval; CKE is HIGH, CS\ is HIGH between valid commands;
Other control and address bus inputs are SWITCHING; Data bus inputs are SWITCHING
mA
IDD6
Self refresh current;
CK and CK\ at 0V; CKE 0.2V; Other control and address bus inputs are
FLOATING; Data bus inputs are FLOATING
Normal mA
Low Power mA
IDD7
Operating bank interleave read current;
All bank interleaving reads, IOUT = 0mA; BL = 4, CL = CL(IDD), AL = tRCD(IDD)-1*tCK(IDD); tCK = tCK(IDD), tRC =
tRC(IDD), tRRD = tRRD(IDD), tFAW = tFAW(IDD), tRCD = 1*tCK(IDD); CKE is HIGH, CS\ is HIGH between valid
commands; Address bus inputs are STABLE during DESELECTs; Data pattern is same as IDD4R; Refer to the follow-
ing page for detailed timing conditions
mA
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Operating Current Table(1-1) (TA=0oC, VDD= 1.9V)
M470T6554BG(Z)3/M470T6554BG(Z)0 : 64Mx64 512MB Module
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CD5
(DDR533@CL=4)
LD5
(DDR533@CL=4)
CCC
(DDR400@CL=3)
LCC
(DDR400@CL=3) Unit Notes
IDD0 760 460 720 460 mA
IDD1 860 560 760 520 mA
IDD2P 64 64 64 64 mA
IDD2Q 200 200 200 200 mA
IDD2N 240 200 240 200 mA
IDD3P-F 240 120 240 120 mA
IDD3P-S 120 120 120 120 mA
IDD3N 560 260 520 260 mA
IDD4W 1,200 700 1,000 700 mA
IDD4R 1,100 700 940 700 mA
IDD5B 1,060 860 1,000 860 mA
IDD6 44 40 44 40 mA
IDD7 1,840 1,060 1,760 1,060 mA
M470T3354BG(Z)3/M470T3354BG(Z)0 : 32Mx64 256MB Module
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CD5
(DDR533@CL=4)
LD5
(DDR533@CL=4)
CCC
(DDR400@CL=3)
LCC
(DDR400@CL=3) Unit Notes
IDD0 480 360 460 360 mA
IDD1 580 460 500 420 mA
IDD2P 32 32 32 32 mA
IDD2Q 100 100 100 100 mA
IDD2N 120 100 120 100 mA
IDD3P-F 120 60 120 60 mA
IDD3P-S 60 60 60 60 mA
IDD3N 280 160 260 160 mA
IDD4W 920 600 740 520 mA
IDD4R 820 600 680 520 mA
IDD5B 780 760 740 760 mA
IDD6 22 20 22 20 mA
IDD7 1,560 960 1,500 960 mA
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Operating Current Table(1-2) (TA=0oC, VDD= 1.9V)
M470T2953BS(Y)3/M470T2953BS(Y)0 : 128Mx64 1GB Module
* Module IDD was calculated on the basis of component IDD and can be differently measured according to DQ loading cap.
Symbol CD5
(DDR533@CL=4)
LD5
(DDR533@CL=4)
CCC
(DDR400@CL=3)
LCC
(DDR400@CL=3) Unit Notes
IDD0 1,360 760 1,280 760 mA
IDD1 1,440 920 1,320 840 mA
IDD2P 128 128 128 128 mA
IDD2Q 400 400 400 400 mA
IDD2N 480 400 480 400 mA
IDD3P-F 480 240 480 240 mA
IDD3P-S 240 240 240 240 mA
IDD3N 1,120 520 1,040 520 mA
IDD4W 2,160 1,160 1,680 1,000 mA
IDD4R 2,000 1,160 1,680 1,000 mA
IDD5B 2,120 1,720 2,000 1,720 mA
IDD6 88 80 88 80 mA
IDD7 2,760 1,960 2,680 1,960 mA
Input/Output Capacitance(VDD=1.8V, VDDQ=1.8V, TA=25oC)
* DM is internally loaded to match DQ and DQS identically.
Parameter
Symbol
Min Max Min Max Min Max
Units
Non-ECC M470T6554BG(Z)3
M470T6554BG(Z)0
M470T3354BG(Z)3
M470T3354BG(Z)0
M470T2953BS(Y)3
M470T2953BS(Y)0
Input capacitance, CK and CK CCK -32 -24 -48
pFInput capacitance, CKE , CS, Addr, RAS, CAS, WE CI -34 -34 -42
Input/output capacitance, DQ, DM, DQS, DQS CIO - 10 - 6 - 10
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Electrical Characteristics & AC Timing for DDR2-533/400 SDRAM
(0 °C < TCASE < 95 °C; VDDQ = 1.8V + 0.1V; VDD = 1.8V + 0.1V)
Refresh Parameters by Device Density
Speed Bins and CL, tRCD, tRP, tRC and tRAS for Corresponding Bin
Parameter Symbol 256Mb 512Mb 1Gb 2Gb 4Gb Units
Refresh to active/Refresh command time tRFC 75 105 127.5 195 tbd ns
Average periodic refresh interval tREFI
0 °CTCASE 85°C7.8 7.8 7.8 7.8 7.8 µs
85 °C < TCASE 95°C3.9 3.9 3.9 3.9 3.9 µs
Speed DDR2-533(D5) DDR2-400(CC)
UnitsBin (CL - tRCD - tRP) 4 - 4 - 4 3 - 3 - 3
Parameter min max min max
tCK, CL=3 5 8 5 8 ns
tCK, CL=4 3.75 8 5 8 ns
tCK, CL=5 - - - - ns
tRCD 15 15 ns
tRP 15 15 ns
tRC 55 55 ns
tRAS 40 70000 40 70000 ns
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Timing Parameters by Speed Grade
(Refer to notes for informations related to this table at the bottom)
Parameter Symbol DDR2-533 DDR2-400 Units Notes
min max min max
DQ output access time from CK/CK tAC -500 +500 -600 +600 ps
DQS output access time from CK/CK tDQSCK -450 +450 -500 +500 ps
CK high-level width tCH 0.45 0.55 0.45 0.55 tCK
CK low-level width tCL 0.45 0.55 0.45 0.55 tCK
CK half period tHP min(tCL,
tCH) xmin(tCL,
tCH) xps
Clock cycle time, CL=x tCK 3750 8000 5000 8000 ps
DQ and DM input hold time tDH 225 x275 xps
DQ and DM input setup time tDS 100 x150 xps
Control & Address input pulse width for each input tIPW 0.6 x0.6 xtCK
DQ and DM input pulse width for each input tDIPW 0.35 x0.35 xtCK
Data-out high-impedance time from CK/CK tHZ x tAC max x tAC max ps
DQS low-impedance time from CK/CK tLZ(DQS) tAC min tAC max tAC min tAC max ps
DQ low-impedance time from CK/CK tLZ(DQ) 2* tACmin tAC max 2* tACmin tAC max ps
DQS-DQ skew for DQS and associated DQ signals tDQSQ x 300 x 350 ps
DQ hold skew factor tQHS x 400 x 450 ps
DQ/DQS output hold time from DQS tQH tHP - tQHS xtHP - tQHS xps
Write command to first DQS latching transition tDQSS WL-0.25 WL+0.25 WL-0.25 WL+0.25 tCK
DQS input high pulse width tDQSH 0.35 x0.35 x tCK
DQS input low pulse width tDQSL 0.35 x0.35 x tCK
DQS falling edge to CK setup time tDSS 0.2 x0.2 x tCK
DQS falling edge hold time from CK tDSH 0.2 x0.2 x tCK
Mode register set command cycle time tMRD 2 x 2 x tCK
Write postamble tWPST 0.4 0.6 0.4 0.6 tCK
Write preamble tWPRE 0.35 x0.35 x tCK
Address and control input hold time tIH 375 x475 xps
Address and control input setup time tIS 250 x350 xps
Read preamble tRPRE 0.9 1.1 0.9 1.1 tCK
Read postamble tRPST 0.4 0.6 0.4 0.6 tCK
Active to active command period for 1KB page size products tRRD 7.5 x7.5 xns
Active to active command period for 2KB page size products tRRD 10 x10 xns
Four Activate Window for 1KB page size products tFAW 37.5 37.5 ns
Four Activate Window for 2KB page size products tFAW 50 50 ns
CAS to CAS command delay tCCD 2 2 tCK
Write recovery time tWR 15 x15 xns
Auto precharge write recovery + precharge time tDAL tWR+tRP xtWR+tRP x tCK
Internal write to read command delay tWTR 7.5 x10 xns
Internal read to precharge command delay tRTP 7.5 7.5 ns
Exit self refresh to a non-read command tXSNR tRFC + 10 tRFC + 10 ns
Exit self refresh to a read command tXSRD 200 200 tCK
Exit precharge power down to any non-read command tXP 2 x 2 x tCK
Exit active power down to read command tXARD 2 x 2 x tCK
Exit active power down to read command (Slow exit, Lower
power) tXARDS 6 - AL 6 - AL tCK
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Parameter Symbol DDR2-533 DDR2-400 Units Notes
min max min max
CKE minimum pulse width (high and low pulse width) tCKE 3 3 tCK
ODT turn-on delay tAOND 2 2 2 2 tCK
ODT turn-on tAON tAC(min) tAC(max)+1 tAC(min) tAC(max)+1 ns
ODT turn-on(Power-Down mode) tAONPD tAC(min)+2 2tCK+tAC(
max)+1 tAC(min)+2 2tCK+tAC
(max)+1 ns
ODT turn-off delay tAOFD 2.5 2.5 2.5 2.5 tCK
ODT turn-off tAOF tAC(min) tAC(max)+
0.6 tAC(min) tAC(max)+
0.6 ns
ODT turn-off (Power-Down mode) tAOFPD tAC(min)+2 2.5tCK+
tAC(max)+1 tAC(min)+2 2.5tCK+
tAC(max)+1 ns
ODT to power down entry latency tANPD 3 3 tCK
ODT power down exit latency tAXPD 8 8 tCK
OCD drive mode output delay tOIT 0 12 0 12 ns
Minimum time clocks remains ON after CKE asynchronously
drops LOW tDelay tIS+tCK +tIH tIS+tCK +tIH ns
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Physical Dimensions: 32Mbx16 based 64Mx64 Module(2 Rank)
The used device is 32M x16 DDR2 SDRAM, FBGA.
DDR2 SDRAM Part NO : K4T51163QB
M470T6554BG(Z)3/M470T6554BG(Z)0
67.60 mm
4.00 ± 0.10
20.00
30.00
1199
11.40 47.40
6.00
SPD
3.8 mm
Max
1.1 mm
Max
a
63.00
16.25
2.00
67.60 mm
30.00
2200
4.20
2.70 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
1.50 ± 0.10
FRONT SIDE
4.20
1.80 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
2.40 ± 0.10
BACK SIDE
0.60
0.45 ± 0.03
2.55
0.20 ± 0.15
DETAIL a DETAIL b
a
b
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Physical Dimensions: 32Mbx16 based 32Mx64 Module(1 Rank)
The used device is 32M x16 DDR2 SDRAM, FBGA.
DDR2 SDRAM Part NO : K4T51163QB
M470T3354BG(Z)3/M470T3354BG(Z)0
2.45 mm
Max
1.1 mm
Max
67.60 mm
4.00 ± 0.10
20.00
30.00
1199
11.40 47.40
6.00
SPD
a
63.00
16.25
2.00
67.60 mm
30.00
2200
a
b
4.20
2.70 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
1.50 ± 0.10
FRONT SIDE
4.20
1.80 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
2.40 ± 0.10
BACK SIDE
0.60
0.45 ± 0.03
2.55
0.20 ± 0.15
DETAIL a DETAIL b
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Physical Dimensions: 64Mbx8 based 128Mx64 Module(2 Ranks)
M470T2953BS(Y)3/M470T2953BS(Y)0
The used device is 64M x8 DDR2 SDRAM, FBGA.
DDR2 SDRAM Part NO : K4T51083QB
3.8 mm
1.1mm
max
max
67.60 mm
4.00 ± 0.10
20.00
30.00
1199
11.40 47.40
6.00
63.00
16.25
2.00
67.60 mm
30.00
2200
SPD
ab
a
4.20
2.70 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
1.50 ± 0.10
FRONT SIDE
4.20
1.80 ± 0.10
4.00 ± 0.10 1.0 ± 0.05
2.40 ± 0.10
BACK SIDE
0.60
0.45 ± 0.03
2.55
0.20 ± 0.15
DETAIL a DETAIL b
Rev. 1.5 Aug. 2005
256MB, 512MB, 1GB Unbuffered SODIMMs DDR2 SDRAM
Revision History
Revision 1.0 (Jan. 2004)
- Initial Release
Revision 1.1 (Jun. 2004)
- Added lead-free part number in the ordering information
- Changed IDD2P
Revision 1.2 (Jul. 2004)
- Added current values and part number of low power product
Revision 1.3 (Feb. 2005)
- Added the detail information for mechanical dimension
Revision 1.4 (Mar. 2005)
- Changed 1GB Functional Block Diagram
Revision 1.5 (Aug. 2005)
- Changed the IDD Specification Parameters Definition