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參數(shù)資料
| 型號： | W3EG2256M72ASSR262AJD3XG |
| 英文描述： | 4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| 中文描述： | 4GB的- 2x256Mx72 ECC的DDR SDRAM的注冊，瓦特/鎖相環(huán) |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 230K |
| 代理商： | W3EG2256M72ASSR262AJD3XG |
1
White Electronic Designs
November, 04
Rev. 3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
W3EG2256M72ASSR-JD3
-AJD3
PRELIMINARY*
FEATURES
Double-data-rate architecture
DDR200, and DDR266:
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
Dual Rank
Power supply: V
CC
= 2.5V ± 0.2V
JEDEC standard 184 pin DIMM package
Package height options:
JD3: 30.48mm (1.2"),
AJD3: 28.70mm (1.13")
NOTE: Consult factory for availability of:
RoHS compliant products
Vendor source control options
Industrial temperature option
DESCRIPTION
The W3EG2256M72ASSR is a 2x256Mx72 Double
Data Rate SDRAM memory module based on 1Gb DDR
SDRAM components. The module consists of eighteen
512Mx4 stacks, 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.
4GB – 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL
OPERATING FREQUENCIES
DDR266 @CL=2
133MHz
2-3-3
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
Clock Speed
CL-t
RCD
-t
RP
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| W3EG2256M72ASSR262JD3XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG2256M72ASSR263AJD3XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG2256M72ASSR263JD3XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG2256M72ASSR265AJD3XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
| W3EG2256M72ASSR265JD3XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4GB - 2x256Mx72 DDR SDRAM REGISTERED ECC, w/PLL |
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