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參數資料
| 型號： | W3EG7218S265BD4 |
| 英文描述： | 128MB - 16Mx72 DDR SDRAM UNBUFFERED w/PLL |
| 中文描述： | 128MB的- 16Mx72 DDR SDRAM的緩沖瓦特/鎖相環 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 177K |
| 代理商： | W3EG7218S265BD4 |
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White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3EG7218S-AD4
-BD4
November 2004
Rev. 1
PRELIMINARY*
128MB – 16Mx72 DDR SDRAM UNBUFFERED w/PLL
DESCRIPTION
The W3EG7218S is a 16Mx72 Double Data Rate
SDRAM memory module based on 128Mb DDR
SDRAM component. The module consists of nine
16Mx8 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.
FEATURES
Double-data-rate architecture
DDR200 and DDR266
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") and
BD4: 31.75mm (1.25")
OPERATING FREQUENCIES
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
Clock Speed
CL-t
RCD
-t
RP
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| W3EG72255S335AJD3XG | 2GB - 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
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| W3EG72255S335JD3XG | 2GB - 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W3EG7218S-AD4 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:128MB - 16Mx72 DDR SDRAM UNBUFFERED w/PLL |
| W3EG7218S-BD4 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:128MB - 16Mx72 DDR SDRAM UNBUFFERED w/PLL |
| W3EG72255MS100AJD3MG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB - 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG72255MS100AJD3SG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB - 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG72255MS100JD3MG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB - 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
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