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參數(shù)資料
| 型號： | W3EG72256S265JD3MF |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 256M X 72 DDR DRAM MODULE, 0.75 ns, DMA184 |
| 封裝： | LEAD FREE, DIMM-184 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 307K |
| 代理商： | W3EG72256S265JD3MF |
White Electronic Designs
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
December 2004
Rev. 2
W3EG72256S-JD3
-AJD3
PRELIMINARY*
FEATURES
Double-data-rate architecture
DDR200, DDR266 and DDR333:
JEDEC design specications
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 option:
JD3: 30.48mm (1.20")
AJD3: 28.70mm (1.13")
Consult factory for availability of lead-free
products.
DESCRIPTION
The W3EG72256S is a 256Mx72 Double Data Rate
SDRAM memory module based on 1Gb DDR SDRAM
components. The module consists of eighteen 1Gb 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 qualied or characterized and is subject to
change without notice.
2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL
OPERATING FREQUENCIES
DDR333 @CL=2.5
DDR266 @CL=2
DDR266 @CL=2.5
DDR200 @CL=2
Clock Speed
166MHz
133MHz
100MHz
CL-tRCD-tRP
2.5-3-3
2-2-2
2-3-3
2.5-3-3
2-2-2
Advance information: Speed may not be available.
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| W3EG72256S265JD3S | 256M X 72 DDR DRAM MODULE, 0.75 ns, DMA184 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W3EG72256S335AJD3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL |
| W3EG72256S335JD3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL |
| W3EG72256S-AJD3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL |
| W3EG72256S-JD3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL |
| W3EG7232S202AD4-X | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:256MB - 32Mx72 DDR SDRAM UNBUFFERED w/PLL |
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