W3EG6433S-AD4 Datasheet, PDF (1/13 Pages) White Electronic Designs Corporation – 256MB - 32Mx64 DDR SDRAM UNBUFFERED, w/PLL

White Electronic Designs
W3EG6433S-AD4
-BD4
PRELIMINARY*
256MB - 32Mx64 DDR SDRAM UNBUFFERED, w/PLL
FEATURES
DDR200, DDR266 and DDR333
Double-data-rate architecture
Bi-directional data strobes (DQS)
Differential clock inputs (CK & CK#)
Programmable Read Latency 2,2.5 (clock)
Programmable Burst Length (2,4,8)
Programmable Burst type (sequential & interleave)
Edge aligned data output, center aligned data input
Auto and self refresh
Serial presence detect
Power supply: 2.5V ± 0.20V
JEDEC standard 200 pin SO-DIMM package
• Package height options:
AD4: 35.5mm (1.38")
BD4: 31.75mm (1.25")
DESCRIPTION
The W3EG6433S is a 32Mx64 Double Data Rate
SDRAM memory module based on 256Mb DDR
SDRAM component. The module consists of eight
32Mx8 DDR SDRAMs in 66 pin TSOP package
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 Lenths 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 without notice.
NOTE: Consult factory for availability of:
• Lead-Free or RoHS Products
• Vendor source control options
• Industrial temperature option
Clock Speed
CL-tRCD-tRP
OPERATING FREQUENCIES
DDR333 @CL=2.5
166MHz
2.5-3-3
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
May 2005
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com