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參數(shù)資料
| 型號： | W3EG6433S262BD4 |
| 英文描述： | 256MB - 32Mx64 DDR SDRAM UNBUFFERED, w/PLL |
| 中文描述： | 256MB的- 32Mx64 DDR內存緩沖，瓦特/鎖相環(huán) |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 334K |
| 代理商： | W3EG6433S262BD4 |
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
May 2005
Rev. 1
PRELIMINARY*
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
W3EG6433S-AD4
-BD4
256MB - 32Mx64 DDR SDRAM UNBUFFERED, w/PLL
DESCRIPTION
The W3EG6433S is a 32Mx64 Double Data Rate
SDRAM memory module based on 256Mb DDR
SDRAM component. The module consists of eight
32Mx8 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
DDR200, DDR266 and DDR333
Double-data-rate architecture
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")
BD4: 31.75mm (1.25")
NOTE: Consult factory for availability of:
Lead-Free or RoHS Products
Vendor source control options
Industrial temperature option
OPERATING FREQUENCIES
DDR333 @CL=2.5
DDR266 @CL=2
166MHz
2.5-3-3
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
Clock Speed
CL-t
RCD
-t
RP
133MHz
2-2-2
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