W3HG128M64EEU-D4

March 2006

Rev. 0

ADVANCED*

1

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

White Electronic Designs

1GB – 128Mx64 DDR2 SDRAM UNBUFFERED, SO-DIMM

DESCRIPTION

The W3HG128M64EEU is a 128Mx64 Double Data Rate

2 SDRAM memory module based on 1Gb DDR2 SDRAM

components. The module consists of eight 128Mx8, in

FBGA package mounted on a 200 pin SO-DIMM FR4

substrate.

* This product is under development, is not qualified or characterized and is subject to

change or cancellation without notice.

NOTE: Consult factory for availability of:

• Vendor source control options

• Industrial temperature option

FEATURES

200-pin, Small-Outline DIMM (SO-DIMM), Raw

Card "B"

Fast data transfer rates: PC2-6400*, PC2-5300*,

PC2-4200 and PC2-3200

Utilizes 800*, 667*, 533 and 400 Mb/s DDR2

SDRAM components

JEDEC standard 1.8V I/O (SSTL_18-compatible)

Differential data strobe (DQS, DQS#) option

Four-bit prefetch architecture

DLL to align DQ and DQS transitions with CK

Multiple internal device banks for concurrent

operation

Supports duplicate output strobe (RDQS/RDQS#)

Programmable CAS# latency (CL): 3, 4, 5* and 6*

Adjustable data-output drive strength

On-Die Termination (ODT)

Posted CAS# latency: 0, 1, 2, 3 and 4

Serial Presence Detect (SPD) with EEPROM

64ms: 8,192 cycle refresh

Gold edge contacts

Single Rank

RoHS Compliant

JEDEC Package option

• 200 Pin (SO-DIMM)

• PCB – 29.20mm (1.150") TYP

OPERATING FREQUENCIES

PC2-6400*

PC2-5300*

PC2-4200

PC2-3200

Clock Speed

400MHz

333MHz

266MHz

200MHz

6-6-6

5-5-5

4-4-4

3-3-3

* Consult factory for availability