器件名称: W3EG264M64ETSRXXXJD3MG
功能描述: 1GB - 2x64Mx64 DDR SDRAM REGISTERED w/PLL
文件大小: 308.04KB 共13页
简 介:White Electronic Designs
W3EG264M64ETSR-JD3
ADVANCED*
1GB – 2x64Mx64 DDR SDRAM REGISTERED w/PLL
FEATURES
Double-data-rate architecture Clock speeds of 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 = VCCQ = +2.5V (133 and 166MHz) JEDEC standard 184 pin DIMM package PCB height: 30.48 (1.20") MAX JD3: 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 or cancellation without notice.
DESCRIPTION
The W3EG264M64ETSR is a 2x64Mx64 Double Data Rate SDRAM memory module based on 512Mb DDR SDRAM component. The module consists of sixteen 64Mx8 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
DDR333 @CL=2.5 Clock Speed CL-tRCD-tRP 166MHz 2.5-3-3 DDR266 @CL=2 133MHz 2-3-3 DDR266 @CL=2.5 133MHz 2.5-3-3
April 2005 Rev.……
