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W3EG64255MS133JD3SG Datasheet(PDF) 1 Page - White Electronic Designs Corporation

Part # W3EG64255MS133JD3SG
Description  1GB-128Mx72 DDR SDRAM REGISTERED ECC w/PLL
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Manufacturer  WEDC [White Electronic Designs Corporation]
Direct Link  http://www.whiteedc.com
Logo WEDC - White Electronic Designs Corporation

W3EG64255MS133JD3SG Datasheet(HTML) 1 Page - White Electronic Designs Corporation

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White Electronic Designs
W3EG72126S-D3
-JD3
-AJD3
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
November 2004
Rev. 3
PRELIMINARY*
FEATURES
Double-data-rate architecture
DDR200, DDR266 and DDR333:
• JEDEC design specifications
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: VCC = 2.5V ± 0.20V
JEDEC standard 184 pin DIMM package
• Package height options:
JD3: 30.48mm (1.20") and
AJD3: 28.70mm (1.13")
• Consult factory for availability of lead-free
products.
DESCRIPTION
The W3EG72126S is a 128Mx72 Double Data Rate
SDRAM memory module based on 512Mb DDR SDRAM
components. The module consists of eighteen 128Mx4
DDR SDRAMs in 66 pin TSOP packages mounted on a
184 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 without notice.
1GB-128Mx72 DDR SDRAM REGISTERED ECC w/PLL
DDR333 @CL=2.5
DDR266 @CL=2
DDR266 @CL=2
DDR266 @CL=2.5
DDR200 @CL=2
Clock Speed
166MHz
133MHz
133MHz
133MHz
100MHz
CL-tRCD-tRP
2.5-3-3
2-2-2
2-3-3
2.5-3-3
2-2-2
OPERATING FREQUENCIES


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