器件名称: W3EG7265S262JD3
功能描述: 512MB - 2x32Mx72 DDR SDRAM REGISTERED, w/PLL
文件大小: 195.88KB 共12页
简 介:White Electronic Designs
W3EG7265S-JD3
PRELIMINARY*
512MB – 2x32Mx72 DDR SDRAM REGISTERED, w/PLL
FEATURES
Double-data-rate architecture DDR200 and DDR266 JEDEC design specicaitons 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 ± 0.2V JEDEC standard 184 pin DIMM package PCB height: 30.48mm (1.20")
NOTE: Consult factory for availability of: RoHS compliant products Vendor source control options Industrial temperature option * This product is under development, is not qualied or characterized and is subject to change without notice.
DESCRIPTION
The W3EG7265S is a 2x32Mx72 Double Data Rate SDRAM memory module based on 256Mb DDR SDRAM components. The module consists of eighteen 32Mx8 DDR SDRAMs 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 Lenths allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.
OPERATING FREQUENCIES
DDR266 @CL=2 Clock Speed CL-tRCD-tRP 133MHz 2-2-2 DDR266 @CL=2.5 133MHz 2.5-3-3 DDR200 @CL=2 100MHz 2-2-2
January 2005 Rev. 3
1
White Electronic Designs Corporation (602) 437-15……
