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參數資料
| 型號： | W3EG6437S335D4SG |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 32M X 64 DDR DRAM MODULE, 0.7 ns, DMA200 |
| 封裝： | ROHS COMPLIANT, SO-DIMM-200 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 300K |
| 代理商： | W3EG6437S335D4SG |
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
PRELIMINARY*
White Electronic Designs Corp. reserves the right to change products or specications without notice.
May 2005
Rev. 1
W3EG6437S-D4
256MB – 2x16Mx64 DDR SDRAM UNBUFFERED
DESCRIPTION
The W3EG6437S is a 2x16Mx64 Double Data Rate
SDRAM memory module based on 256Mb DDR SDRAM
components. The module consists of eight 16Mx16 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 qualied or characterized and is subject to
change without notice.
FEATURES
Double-data-rate architecture
DDR200, DDR266, DDR300 and DDR400
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
Dual Rank
Power Supply: 2.5V ± 0.20V
JEDEC standard 200 pin SO-DIMM package
Package height options:
D4: 31.75mm (1.25")
NOTE: Consult factory for availability of:
RoHS compliant products
Vendor source control options
Industrial temperature option
OPERATING FREQUENCIES
DDR400@CL=3
DDR333@CL=2.5
DDR266@CL=2
DDR266@CL=2.5
DDR200@CL=2
Clock Speed
200MHz
166MHz
133MHz
100MHz
CL-tRCD-tRP
3-3-3
2.5-3-3
2-2-2
2.5-3-3
2-2-2
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