參數(shù)資料
型號: W3EG72125S202D3M
廠商: WHITE ELECTRONIC DESIGNS CORP
元件分類: DRAM
英文描述: 128M X 72 DDR DRAM MODULE, 0.8 ns, DMA184
封裝: DIMM-184
文件頁數(shù): 1/14頁
文件大?。?/td> 309K
代理商: W3EG72125S202D3M
W3EG72125S-D3
-JD3
-AJD3
November 2004
Rev. 2
PRELIMINARY*
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic
White Electronic Designs Corp. reserves the right to change products or specications without notice.
1GB – 2x64Mx72 DDR SDRAM REGISTERED ECC w/PLL
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 qualied or characterized and is subject to
change without notice.
DESCRIPTION
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:
JD3: 30.48mm (1.20") and
AJD3: 28.70mm (1.13")
NOTE: Consult factory for availability of:
RoHS compliant products
Vendor source control options
Industrial temperature option
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
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