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W3EG72125S-D3 fiches techniques PDF

White Electronic - 1GB - 2x64Mx72 DDR SDRAM REGISTERED ECC

Numéro de référence W3EG72125S-D3
Description 1GB - 2x64Mx72 DDR SDRAM REGISTERED ECC
Fabricant White Electronic 
Logo White Electronic 





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W3EG72125S-D3 fiche technique
White Electronic Designs
W3EG72125S-D3
-JD3
-AJD3
PRELIMINARY*
1GB – 2x64Mx72 DDR SDRAM REGISTERED ECC w/PLL
FEATURES
Double-data-rate architecture
Clock Speeds of 100MHz, 133MHz and 166MHz
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
Dual Rank
Power supply: VCC = 2.5V ± 0.2V
JEDEC standard 184 pin DIMM package
• Package height options:
www.DataSheet4U.com JD3: 30.48mm (1.20") and
AJD3: 28.70mm (1.13")
DESCRIPTION
The W3EG72125S is a 2x64Mx72 Double Data Rate
SDRAM memory module based on 256Mb DDR SDRAM
components. The module consists of eighteen 2x64Mx4
stacked (36 components), in 66 pin TSOP package
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.
NOTE: Consult factory for availability of:
• RoHS compliant products
• Vendor source control options
• Industrial temperature option
Clock Speed
CL-tRCD-tRP
DDR333 @CL=2.5
166MHz
2.5-3-3
OPERATING FREQUENCIES
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2
133MHz
2-3-3
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.
November 2004
Rev. 2
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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