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

April 2005

Rev. 0

ADVANCED*

WV3EG232M64EFSU-D4

White Electronic Designs

512MB – 2x32Mx64 DDR SDRAM, UNBUFFERED, w/PLL, FBGA

FEATURES

Fast data transfer rate: PC-2100 and PC-2700

Clock speeds of 133 MHz and 166 MHz

Two data transfers per clock cycle

Supports ECC error detection and correction

Bi-directional data strobes (DQS)

Differential clock inputs (CK & CK#)

Programmable Read Latency 2 and 2.5 (clock)

Programmable Burst Length (2, 4 or 8)

Programmable Burst type (sequential & interleave)

Edge aligned data output, center aligned data input

Auto and self refresh

Serial presence detect (SPD) with EEPROM

Dual Rank

166MHz)

Gold edge contacts

200 pin, small-outline, SO-DIMM package

• PCB height option:

31.75 mm (1.25”)

NOTE: Consult factory for availability of:

• RoHS compliant products

• Vendor source control options

• Industrial temperature option

DESCRIPTION

The WV3EG232M64EFSU is a 2x32Mx64 Double Data

Rate SDRAM memory module based on 256Mb DDR

SDRAM components. The module consists of sixteen

32Mx8 4 banks DDR SDRAMs in FBGA packages

mounted on a 200 pin FR4 substrate.

Synchronous design allows precise cycle control with the

use of system clock. Data I/O transactions are possible on

both edges and Burst Lengths allow the same device to be

useful for a variety of high bandwidth, high performance

memory system applications.

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

change or cancellation without notice.

OPERATING FREQUENCIES

DDR333@CL=2.5

DDR266@CL=2

DDR266@CL=2.5

Clock Speed

166MHz

133MHz

133MHz

2.5-3-3

2-2-2

2.5-3-3