NT256T64UH4A0FY-3C - Nanya Technology Corporation

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 1

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

240pin Unbuffered DDR2 SDRAM MODULE

Based on 32Mx16 DDR2 SDRAM

Features

• JEDEC Standard 240-pin Dual In-Line Memory Module

• 32Mx64 DDR2 Unbuffered DIMM based on 32Mx16 DDR2

SDRAM

• Performance:

PC2-3200 PC2-4200 PC2-5300

Speed Sort 5A 37B 3C

DIMM CAS Latency* 3 4 5

Unit

f CK Clock Frequency 200 266 333 MHz

t CK Clock Cycle 5 3.7 3 ns

f DQ DQ Burst Frequency 400 533 667 MHz

• Intended for 200 MHz, 266MHz, and 333MHz applications

• Inputs and outputs are SSTL-18 compatible

• VDD = VDDQ = 1.8Volt ± 0.1

• SDRAMs have 4 internal banks for concurrent operation

• Differential clock inputs

• Data is read or written on both clock edges

• Bi-directional data strobe with one clock cycle preamble and

one-half clock post-amble

• Address and control signals are fully synchronous to positive

clock edge

• Programmable Operation:

- Device CAS Latency: 3, 4, 5

- Burst Type: Sequential or Interleave

- Burst Length: 4, 8

- Operation: Burst Read and Write

• Auto Refresh (CBR) and Self Refresh Modes

• Automatic and controlled precharge commands

• 13/10/1 Addressing (row/column/bank) – NT256T64UH4A0F

• 7.8µs Max. Average Periodic Refresh Interval

• Serial Presence Detect

• Gold contacts

• SDRAMs in 84-ball FBGA Package

Description

NT256T64UH4A0F is 240-Pin Double Data Rate 2 (DDR2) Synchronous DRAM Unbuffered Dual In-Line Memory Module (UDIMM),

organized as a one-rank 64Mx64 high-speed memory array. Modules use four 32Mx16 DDR2 SDRAMs in FBGA packages. These

DIMMs manufactured using raw cards developed for broad industry use as reference designs. The use of these common design files

minimizes electrical variation between suppliers. All NANYA DDR2 SDRAM DIMMs provide a high-performance, flexible 8-byte interface

in a 5.25” long space-saving footprint.

The DIMM is intended for use in applications operating up to 200 MHz (266MHz and 333MHz) clock speeds and achieves high-speed

data transfer rates of up to 400 MHz (533MHz and 667MHz). Prior to any access operation, the device CAS latency and burst type/

length/operation type must be programmed into the DIMM by address inputs A0-A13 and I/O inputs BA0 and BA1 using the mode

The DIMM uses serial presence-detect implemented via a serial 2,048-bit EEPROM using a standard IIC protocol. The first 128 bytes of

serial PD data are programmed and locked during module assembly. The remaining 128 bytes are available for use by the customer.

Ordering Information

Part Number Speed Organization Leads Power Note

NT256T64UH4A0F-5A

NT256T64UH4A0FY-5A

200MHz (5ns @ CL = 3) DDR2-400 PC2-3200

Green

NT256T64UH4A0F-37B

NT256T64UH4A0FY-37B

266MHz (3.7ns @ CL = 4) DDR2-533 PC2-4200

Green

NT256T64UH4A0F-3C

NT256T64UH4A0FY-3C

333MHz (3ns @ CL = 5) DDR2-667 PC2-5300

32Mx64 Gold 1.8V

Green

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 2

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Pin Description

CK0, CK0 Differential Clock Inputs DQ0-DQ63 Data input/output

CKE0, CKE1 Clock Enable CB0-CB7 ECC Check Bit Data Input/Output

RAS Row Address Strobe DQS0-DQS8 Bidirectional data strobes

CAS Column Address Strobe DM0-DM8/DQS9-17 Input Data Mask/High Data Strobes

WE Write Enable DQS0-DQS17 Differential data strobes

CS0, CS1 Chip Selects VDD Power (1.8V)

A0-A9, A11-A13 Address Inputs VREF Ref. Voltage for SSTL_18 inputs

A10/AP Column Address Input/Auto-precharge VDDSPD Serial EEPROM positive power supply

BA0, BA1 SDRAM Bank Address Inputs VSS Ground

RESET Reset pin SCL Serial Presence Detect Clock Input

ODT0, ODT1 Active termination control lines SDA Serial Presence Detect Data input/output

NC No Connect SA0-2 Serial Presence Detect Address Inputs

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 3

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Pinout

Pin Front Pin Front Pin Front Pin Back Pin Back Pin Back

1 VREF 42 NC 82 VSS 123 DQ5 164 NC 204 VSS

2 VSS 43 NC 83 DQS4 124 VSS 165 NC 205 DQ38

3 DQ0 44 VSS 84 DQS4 125 DM0, DQS9 166 VSS 206 DQ39

4 DQ1 45 NC 85 VSS 126 DQS9 167 NC 207 VSS

5 VSS 46 NC 86 DQ34 127 VSS 168 NC 208 DQ44

6 DQS0 47 VSS 87 DQ35 128 DQ6 169 VSS 209 DQ45

7 DQS0 48 NC 88 VSS 129 DQ7 170 VDDQ 210 VSS

8 VSS 49 NC 89 DQ40 130 VSS 171 CKE1 211 DM5

9 DQ2 50 VSS 90 DQ41 131 DQ12 172 VDD 212 NC

10 DQ3 51 VDDQ 91 VSS 132 DQ13 173 NC 213 VSS

11 VSS 52 CKE0 92 DQS5 133 VSS 174 NC 214 DQ46

12 DQ8 53 VDD 93 DQS5 134 DM1, DQS10 175 VDDQ 215 DQ47

13 DQ9 54 NC 94 VSS 135 DQS10 176 A12 216 VSS

14 VSS 55 NC 95 DQ42 136 VSS 177 A9 217 DQ52

15 DQS1 56 VDDQ 96 DQ43 137 CK1 178 VDD 218 DQ53

16 DQS1 57 A11 97 VSS 138 CK1 179 A8 219 VSS

17 VSS 58 A7 98 DQ48 139 VSS 180 A6 220 CK2

18 NC 59 VDD 99 DQ49 140 DQ14 181 VDDQ 221 CK2

19 NC 60 A5 100 VSS 141 DQ15 182 A3 222 VSS

20 VSS 61 A4 101 SA2 142 VSS 183 A1 223 DM6

21 DQ10 62 VDDQ 102 NC 143 DQ20 184 VDD 224 NC

22 DQ11 63 A2 103 VSS 144 DQ21 KEY 225 VSS

23 VSS 64 VDD 104 DQS6 145 VSS 185 CK0 226 DQ54

24 DQ16 KEY 105 DQS6 146 DM2 186 CK0 227 DQ55

25 DQ17 65 VSS 106 VSS 147 NC 187 VDD 228 VSS

26 VSS 66 VSS 107 DQ50 148 VSS 188 A0 229 DQ60

27 DQS2 67 VDD 108 DQ51 149 DQ22 189 VDD 230 DQ61

28 DQS2 68 NC 109 VSS 150 DQ23 190 BA1 231 VSS

29 VSS 69 VDD 110 DQ56 151 VSS 191 VDDQ 232 DM7

30 DQ18 70 A10/AP 111 DQ57 152 DQ28 192 RAS 233 NC

31 DQ19 71 BA0 112 VSS 153 DQ29 193 CS0 234 VSS

32 VSS 72 VDDQ 113 DQS7 154 VSS 194 VDDQ 235 DQ62

33 DQ24 73 WE 114 DQS7 155 DM3 195 ODT0 236 DQ63

34 DQ25 74 CAS 115 VSS 156 NC 196 A13 237 VSS

35 VSS 75 VDDQ 116 DQ58 157 VSS 197 VDD 238 VDDSPD

36 DQS3 76 CS1 117 DQ59 158 DQ30 198 VSS 239 SA0

37 DQS3 77 ODT1 118 VSS 159 DQ31 199 DQ36 240 SA1

38 VSS 78 VDDQ 119 SDA 160 VSS 200 DQ37

39 DQ26 79 VSS 120 SCL 161 NC 201 VSS

40 DQ27 80 DQ32 121 VSS 162 NC 202 DM4

41 VSS 81 DQ33 122 DQ4 163 VSS 203 NC

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 4

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Input/Output Functional Description

Symbol Type Polarity Function

CK0, CK1, CK2 (SSTL) Positive

Edge

The positive line of the differential pair of system clock inputs which drives the input to

the on-DIMM PLL. All the DDR2 SDRAM address and control inputs are sampled on the

rising edge of their associated clocks.

CK0, CK1, CK2 (SSTL) Negative

Edge

The negative line of the differential pair of system clock inputs which drives the input to

the on-DIMM PLL.

CKE0, CKE1 (SSTL) Active

High

Activates the 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 Refresh

mode.

CS0, CS1 (SSTL) Active

Low

Enables the associated 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.

RAS, CAS, WE (SSTL) Active

Low

When sampled at the positive rising edge of the clock, RAS, CAS, WE define the

operation to be executed by the SDRAM.

VREF Supply Reference voltage for SSTL-18 inputs

VDDQ Supply

Isolated power supply for the DDR SDRAM output buffers to provide improved noise

immunity

ODT0, ODT1 Input Active

High On-Die Termination control signals

BA0, BA1 (SSTL) - Selects which SDRAM bank is to be active.

A0 - A9

A10/AP

A11 - A13

(SSTL) -

During a Bank Activate command cycle, A0-A12 defines the row address (RA0-RA12)

when sampled at the rising clock edge.

During a Read or Write command cycle, A0-A9, A11 defines the column address

(CA0-CA10) when sampled at the rising clock edge. 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/BA1 define the bank to be

precharged. If AP is low, autoprecharge is disabled.

During a Precharge command cycle, AP is used in conjunction with BA0/BA1 to control

which bank(s) to precharge. If AP is high all 4 banks will be precharged regardless of the

state of BA0/BA1. If AP is low, then BA0/BA1 are used to define which bank to

pre-charge.

DQ0 – DQ63

CB0 – CB7 (SSTL) Active

High

Data and Check Bit Input/Output pins. Check bits are only applicable on the x72 DIMM

configurations.

VDD, VSS Supply Power and ground for the DDR SDRAM input buffers and core logic

DQS0 – DQS8

DQS0 – DQS8 (SSTL)

Negative

and

Positive

Edge

Data strobe for input and output data

DM0 – DM8 Input Active

High

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. DM8 is associated with check bits

CB0-CB7, and is not used on x64 modules.

SA0 – SA2 -

Address inputs. Connected to either VDD or VSS on the system board to configure the

Serial Presence Detect EEPROM address.

SDA -

This bi-directional pin is used to transfer data into or out of the SPD EEPROM. A resistor

must be connected from the SDA bus line to VDD to act as a pull-up.

SCL -

This signal is used to clock data into and out of the SPD EEPROM. A resistor may be

connected from the SCL bus time to V DD to act as a pull-up.

VDDSPD Supply Serial EEPROM positive power supply.

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 5

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Functional Block Diagram

(256MB, 1 Rank, 32Mx16 DDR2 SDRAMs)

CS0

Serial PD

A0 A2A1

SCL

WP SDA

SA0 SA2SA1

DDSPD

SPD

D0-D3

DDQ

REF

DDID

DM0

DQ0

DQ1

DQ2

DQ7

DQ4

DQ6

DQ5

DQ3

DQ8

DQ9

DQ10

DQ15

DQ12

DQ14

DQ13

DQ11

DQS0

DM1

DQS1

I/O 0

I/O 1

I/O 6

I/O 5

I/O 4

I/O 3

I/O 2

I/O 7

LDM

I/O 8

I/O 9

I/O 14

I/O 13

I/O 12

I/O 11

I/O 10

I/O 15

UDM

UDQS

LDQS

UDQSDQS1

DQS0

DM3

DQS3

DM2

DQS2

I/O 0

I/O 1

I/O 6

I/O 5

I/O 4

I/O 3

I/O 2

I/O 7

LDM

I/O 8

I/O 9

I/O 14

I/O 13

I/O 12

I/O 11

I/O 10

I/O 15

UDM

UDQS

LDQS

DQ16

DQ17

DQ18

DQ23

DQ20

DQ22

DQ21

DQ19

DQ24

DQ25

DQ26

DQ31

DQ28

DQ30

DQ29

DQ27

DQS2

UDQS

LDQS

DQS3

DM4

DQS4

DQ32

DQ33

DQ34

DQ39

DQ36

DQ38

DQ37

DQ35

DQ40

DQ41

DQ42

DQ47

DQ44

DQ46

DQ45

DQ43

DQS5

DM5

I/O 0

I/O 1

I/O 6

I/O 5

I/O 4

I/O 3

I/O 2

I/O 7

LDM

I/O 8

I/O 9

I/O 14

I/O 13

I/O 12

I/O 11

I/O 10

I/O 15

UDM

UDQS

LDQS

LDQSDQS4

UDQS

DQS5

I/O 0

I/O 1

I/O 6

I/O 5

I/O 4

I/O 3

I/O 2

I/O 7

LDM

I/O 8

I/O 9

I/O 14

I/O 13

I/O 12

I/O 11

I/O 10

I/O 15

UDM

UDQS

LDQS

DQ48

DQ49

DQ50

DQ55

DQ52

DQ54

DQ53

DQ51

DQ56

DQ57

DQ58

DQ63

DQ60

DQ62

DQ61

DQ59

DQS6

DM6

DQS7

DM7

LDQS

UDQS

DQS7

DQS6

BA0-BA1

A0-A12

RAS

CAS

CKE0

ODT0

A0-A12 : SDRAMs D0-D3

BA0-BA1 : SDRAMs D0-D3

RAS : SDRAMs D0-D3

CKE : SDRAMs D0-D3

CAS : SDRAMs D0-D3

ODT : SDRAMs D0-D3

WE : SDRAMs D0-D3

Notes : 1. DQ-to-I/O wiring may be changed within a byte.

2. DQ/DQS/DM/CKE/CS relationships are maintained as shown.

3. DQ/DQS/DQS resistors are 22 Ohms +/- 5%

4. BAx, Ax, RAS, CAS, WE resistors are 5.1 Ohms +/- 5%

5. Address and control resistors are 22 Ohms +/- 5%

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 6

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Serial Presence Detect -- Part 1 of 2

32Mx64 1 BANK UNBUFFERED DDR2 SDRAM DIMM based on 32Mx16, 4Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD

SPD Entry Value Serial PD Data Entry

(Hexadecimal) Note

Byte Description

DDR2

-400

(-5A)

DDR2

-533

(-37B)

DDR2

-667

(-3C)

DDR2

-400

(-5A)

DDR2

-533

(-37B)

DDR2

-667

(-3C)

0 Number of Serial PD Bytes Written during Production 128 80

1 Total Number of Bytes in Serial PD device 256 08

2 Fundamental Memory Type DDR2-SDRAM 08

3 Number of Row Addresses on Assembly 13 0D

4 Number of Column Addresses on Assembly 10 0A

5 Number of DIMM Bank, Package, and Height 1 rank, Height=30mm 60

6 Data Width of this Assembly X64 40

7 Reserved Undefined 00

8 Voltage Interface Level of this Assembly SSTL_1.8V 05

9 DDR2 SDRAM Device Cycle Time at CL=5 5ns 3.75ns 3ns 50 3D 30

10 DDR2 SDRAM Device Access Time from Clock at CL=5 0.6ns 0.5ns 0.45ns 60 50 45

11 DIMM Configuration Type Non - ECC 00

12 Refresh Rate/Type 7.8µs/self 82

13 Primary DDR2 SDRAM Width X16 10

14 Error Checking DDR2 SDRAM Device Width N/A 00

15 Reserved Undefined 00

16 DDR2 SDRAM Device Attributes: Burst Length Supported 4,8 0C

17 DDR2 SDRAM Device Attributes: Number of Device Banks 4 04

18 DDR2 SDRAM Device Attributes: CAS Latencies Supported 3/4/5 38

19 Reserved Undefined 00

20 DDR2 SDRAM DIMM Type Information Regular UDIMM (133/35mm) 02

21 DDR2 SDRAM Module Attributes: Normal DIMM 00

22 DDR2 SDRAM Device Attributes: General Support weak driver 01 01 13

23 Minimum Clock Cycle at CL=4 5ns 3.75ns 3.75ns 50 3D 3D

24 Maximum Data Access Time (tac) from Clock at CL=4 0.6ns 0.5ns 0.5ns 60 50 50

25 Minimum Clock Cycle Time at CL=3 5ns 50

26 Maximum Data Access Time (tac) from Clock at CL=3 0.6ns 60

27 Minimum Row Precharge Time (tRP) 15ns 3C

28 Minimum Row Active to Row Active delay (tRRD) 10ns 28

29 Minimum RAS to CAS delay (tRCD) 15ns 3C

30 Minimum RAS Pulse Width (tRAS) 45ns 2D

31 Module Bank Density 256MB 40

32 Address and Command Setup Time Before Clock (tIS) 0.35ns 0.25ns 0.2ns 35 25 20

33 Address and Command Hold Time After Clock (tIH) 0.475ns 0.375ns 0.325ns 47 37 32

34 Data Input Setup Time Before Clock (tDS) 0.15ns 0.1ns 0.05ns 15 10 05

35 Data Input Hold Time After Clock (tDH) 0.275ns 0.225ns 0.175ns 27 22 17

36 Write Recovery Time (tWR) 15ns 3C

37 Internal Write to Read Command delay (tWTR) 10ns 7.5ns 7.5ns 28 1E 1E

38 Internal Read to Precharge delay (tRTP) 7.5ns 1E

39 Memory Analysis Probe Characteristics Undefined 00

40 Extension of Byte 41 tRC and Byte 42 tRFC

The number below a decimal

point of tRC and tRFC are 0, tRFC

is less than 256ns

41 Minimum Core Cycle Time (tRC) 60ns 3C

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 7

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Serial Presence Detect -- Part 2 of 2

32Mx64 1 BANK UNBUFFERED DDR2 SDRAM DIMM based on 32Mx16, 4Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD

SPD Entry Value Serial PD Data Entry

(Hexadecimal)

Byte Description DDR2

-400

(-5A)

DDR2

-533

(-37B)

DDR2

-667

(-3C)

DDR2

-400

(-5A)

DDR2

-533

(-37B)

DDR2

-667

(-3C)

Note

42 Min. Auto Refresh Command Cycle Time (tRFC) 105ns 69

43 Maximum Clock Cycle Time (tCK) 8ns 80

44 Max. DQS-DQ Skew Factor (tDQS) 0.35ns 0.3ns 0.25ns 23 1E 19

45 Read Data Hold Skew Factor (tQHS) 0.45ns 0.4ns 0.35ns 2D 28 23

46 PLL Relock Time N/A 00

47-xx IDD in SPD Undefined 00

xx-61 Reserved Undefined 00

62 SPD Reversion 1.0 10

63 Checksum for byte 0-62 Checksum data 05 81 51

64-71 Manufacture’s JEDEC ID Code NANYA 7F7F7F0B00000000

72 Module Manufacturing Location N/A 00

73-255 Reserved Undefined 00

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 8

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Absolute Maximum Ratings

Symbol Parameter Rating Units

VIN, VOUT Voltage on I/O pins relative to VSS -0.5 to VDDQ+0.5 V

VIN Voltage on Input relative to VSS -0.5 to +2.3 V

VDD Voltage on VDD supply relative to VSS -0.5 to +2.3 V

VDDQ Voltage on VDDQ supply relative to VSS -0.5 to +2.3 V

TA Operating Temperature (Ambient) 0 to +70 °C

TSTG Storage Temperature (Plastic) -55 to +100 °C

Note: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is

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.

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 9

03/2005 © NANYA TECHNOLOGY CORP.

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

DC Electrical Characteristics and Operating Conditions

(TA = 0 °C ~ 70 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics)

Symbol Parameter Min Max Units Notes

VDD Supply Voltage 1.7 1.9 V 1

VDDQ I/O Supply Voltage 1.7 1.9 V 1

VSS, VSSQ Supply Voltage, I/O Supply Voltage 0 0 V

VREF I/O Reference Voltage 0.49 x VDDQ 0.51 x VDDQ V 1, 2

VIH (DC) Input High (Logic1) Voltage VREF + 0.125 VDDQ + 0.3 V 1

VIL (DC) Input Low (Logic0) Voltage -0.3 VREF - 0.125 V 1

Note:

1. Inputs are not recognized as valid until VREF stabilizes.

2. VREF is expected to be equal to 0.5 VDDQ of the transmitting device, and to track variations in the DC level of the same.

Peak-to-peak noise on VREF may not exceed 2% of the DC value

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 10

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Operating, Standby, and Refresh Currents

TA = 0 °C ~ 70 °C; VDDQ = VDD = 1.8V ± 0.1V (256MB, 1 Rank, 32Mx16 DDR2 SDRAMs)

Symbol Parameter/Condition

PC2-3200

(-5A)

PC2-4200

(-37B)

PC2-5300

(-3C) Unit Notes

I DD0

Operating Current: one bank; active/precharge; tRC = tRC (MIN); tCK = tCK

(MIN); DQ, DM, and DQS inputs changing twice per clock cycle; address

and control inputs changing once per clock cycle

290 330 TBD mA 1, 2

I DD1

Operating Current: one bank; active/read/precharge; Burst = 2; tRC = tRC

(MIN); CL=2.5; tCK = tCK (MIN); IOUT = 0mA; address and control inputs

changing once per clock cycle

310 360 TBD mA 1, 2

I DD2P Precharge Power-Down Standby Current: all banks idle; power-down

mode; CKE ≤ VIL (MAX); tCK = tCK (MIN) 20 20 TBD mA 1, 2

I DD2N Idle Standby Current: CS ≥ VIH (MIN); all banks idle; CKE ≥ VIH (MIN); tCK =

tCK (MIN); address and control inputs changing once per clock cycle 140 170 TBD mA 1, 2

I DD3P Active Power-Down Standby Current: one bank active; power-down mode;

CKE ≤ VIL (MAX); tCK = tCK (MIN) 55 70 TBD mA 1, 2

I DD3N

Active Standby Current: one bank; active/precharge; CS ≥ VIH (MIN); CKE ≥

VIH (MIN); tRC = tRAS (MAX); tCK = tCK (MIN); DQ, DM, and DQS inputs changing

twice per clock cycle; address and control inputs changing once per clock

cycle

145 170 TBD mA 1, 2

I DD4R

Operating Current: one bank; Burst = 2; reads; continuous burst; address

and control inputs changing once per clock cycle; DQ and DQS outputs

changing twice per clock cycle; CL = 2.5; tCK = tCK (MIN); IOUT = 0mA

350 400 TBD mA 1, 2

I DD4W

Operating Current: one bank; Burst = 2; writes; continuous burst; address

and control inputs changing once per clock cycle; DQ and DQS inputs

changing twice per clock cycle; CL=2.5; tCK = tCK (MIN)

370 450 TBD mA 1, 2

I DD5 Auto-Refresh Current: tRC = tRFC (MIN) 490 520 TBD mA 1, 2, 4

I DD6 Self-Refresh Current: CKE ≤ 0.2V 18 18 TBD mA 1, 2

I DD7

Operating Current: four bank; four bank interleaving with BL = 4, address

and control inputs randomly changing; 50% of data changing at every

transfer; tRC = tRC (min); IOUT = 0mA.

850 900 TBD mA 1, 2

Note:

1. I

DD specifications are tested after the device is properly initialized.

2. Input slew rate = 1V/ns.

3. Enables on-chip refresh and address counters.

4. Current at 7.8µs is time-averaged value of IDD5 at tRFC (MIN) and IDD2P over 7.8µs.

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 11

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

AC Timing Specifications for DDR2 SDRAM Devices Used on Module

(TA = 0 °C ~ 70 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics) (Part 1 of 2)

-5A -37B -3C

Symbol Parameter

Min. Max. Min. Max. Min. Max.

Unit

tAC DQ output access time from CK/CK -0.6 +0.6 -0.5 +0.5 -0.45 +0.45 ns

tDQSCK DQS output access time from CK/CK -0.5 +0.5 -0.45 +0.45 -0.4 +0.4 ns

tCH CK high-level width 0.45 0.55 0.45 0.55 0.45 0.55 tCK

tCL CK low-level width 0.45 0.55 0.45 0.55 0.45 0.55 tCK

tHP Minimum half clk period for any given cycle;

defined by clk high (tCH) or clk low (tCL) time

tCH

tCL

tCH

tCL

tCH

tCL

tCK CL=3 5 8 3.75 8 3 8 ns

tCK

Clock cycle time

CL=4, 5 5 8 3.75 8 3 8 ns

tDH DQ and DM input hold time 0.275 0.225 0.175 ns

tDS DQ and DM input setup time 0.15 0.1 0.1 ns

tIPW Input pulse width 0.6 0.6 0.6 ns

tDIPW DQ and DM input pulse width (each input) 0.35 0.35 0.35 ns

tHZ Data-out high-impedance time from CK/CK t

AC (max) t

AC (max) tAC ns

tLZ Data-out low-impedance time from CK/CK 2tAC

(min) tAC (max) 2 tAC

(min) tAC (max) tAC ns

tDQSQ DQS-DQ skew (DQS & associated DQ signals) 0.35 0.3 0.24 ns

tQHS Data hold Skew Factor 0.45 0.4 0.34 ns

tQH Data output hold time from DQS tHP -

tQHS tHP -

tQHS t

tDQSS Write command to 1st DQS latching transition -0.25 +0.25 -0.25 +0.25 -0.25 +0.25 tCK

tDQSL,(H) DQS input low (high) pulse width

(write cycle) 0.35 0.35 0.35 tCK

tDSS DQS falling edge to CK setup time

(write cycle) 0.2 0.2 0.2 tCK

tDSH DQS falling edge hold time from CK

(write cycle) 0.2 0.2 0.2 tCK

tMRD Mode register set command cycle time 2 2 2 tCK

tWPST Write postamble 0.4 0.6 0.4 0.6 0.4 0.6 tCK

tWPRE Write preamble 0.35 0.35 0.35 tCK

tIH Address and control input hold time

0.475 0.375 0.275 ns

tIS Address and control input setup time 0.35 0.25 0.2 ns

tRPRE Read preamble 0.9 1.1 0.9 1.1 0.9 1.1 tCK

tRPST Read postamble 0.4 0.6 0.4 0.6 0.4 0.6 tCK

tRAS Active to Precharge command 45 120,000 40 120,000 45 120,000 ns

tRRD Active bank A to Active bank B command 7.5 7.5 7.5 ns

tCCD CAS to CAS 2 2 2 tCK

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 12

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

AC Timing Specifications for DDR2 SDRAM Devices Used on Module

(TA = 0 °C ~ 70 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics) (Part 2 of 2)

-5A -37B -3C

Symbol Parameter

Min. Max. Min. Max. Min. Max.

Unit

tWR Write recovery time 15 15 15 ns

tDAL Auto precharge write recovery + precharge time tWR+tRP t

WR+tRP t

tWTR Internal write to read command delay 10 7.5 7.5 tCK

tRTP Internal read to precharge command delay 7.5 7.5 7.5 ns

tXSNR Exit self refresh to a Non-read command tRFC+10 tRFC +10 tRFC +10 ns

tXSRD Exit self refresh to a Read command 200 200 200 tCK

tXP Exit precharge power down to any Non- read

command 2 2 2 tCK

tXARD Exit active power down to read command 2 2 2 tCK

tXARDS Exit active power down to read command 6-AL 6-AL 7-AL tCK

tCKE CKE minimum pulse width 3 3 3 tCK

tAOND ODT turn-on delay 2 2 2 tCK

tAON ODT turn-on tAC (min) tAC (max)

+1 tAC (min) tAC (max)

+0.7 tCK

tAONPD ODT turn-on (Power down mode) tAC (min)

2tCK + tAC

(max) +1

tAC (min)

2tCK + tAC

(max) +1

tAC (min)

2tCK + tAC

(max) +1 tCK

tAOFD ODT turn-off delay 2.5 2.5 2.5 tCK

tAOF ODT turn-off tAC (min) tAC (max)

+0.6 tAC (min) tAC (max)

+0.6 ns

tAOFPD ODT turn-off (Power down mode) tAC

(min)+2

2.5tCK +

tAC

(max) +1

tAC

(min)+2

2.5tCK +

tAC

(max) +1

tAC

(min)+2

2.5tCK +

tAC

(max) +1

tANPD ODT to power down entry latency 3 3 3 tCK

tAXPD ODT power down exit latency 8 8 8 tCK

tOIT OCD drive mode output delay 0 12 0 12 0 12 ns

tDelay Minimum time clocks remains ON after CKE

asynchronously drops Low

tIS + tCK +

tIH tIS + tCK +

tIH ns

tRCD Active to Read or Write delay 15 15 12 ns

tRP Precharge command period 15 15 12 ns

tREFI Average Periodic Refresh Interval 7.8 7.8 7.8 µs

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 13

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Package Dimensions

(256MB, 1 Rank, 32Mx16 DDR2 SDRAMs)

FRONT

1.50

Detail A

0.039

Detail B

0.8 Width

BACK

0.059

3.80

0.15

0.157

4.00

0.031

1.00 Pitch

Detail A Detail B

0.098

2.5

10.0

0.394

133.35

131.35

128.95

5.250

5.171

5.077

17.80

3.0

0.118

0.700

30.00

1.180

(2X) 4.00

0.157

Note: All dimensions are typical with tolerances of +/- 0.15 (0.006) unless otherwise stated.

Units: Millimeters (Inches)

SIDE

3.81

(Front)

1.27

0.125 max.

0.050

NT256T64UH4A0F / NT256T64UH4A0FY (Green)

256MB: 32M x 64

Unbuffered DDR2 SDRAM DIMM

REV 1.1 14

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

Revision Log

Rev Date Modification

0.1 08/2004 Preliminary Release

1.0 01/2005 Added Idd values

1.1 03/2005 Added DDR2-667 spec.