W3EG72129S-JD3

White Electronic Designs W3EG72129S-JD3 PRELIMINARY* 1GB – 2x64Mx72 DDR SDRAM REGISTERED w/PLL FEATURES Double-data-rate architecture Clock speeds of 100MHz, 133MHz, 166MHz and 200MHz 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 (100, 133 and 166MHz) www.DataSheet4U.com DESCRIPTION The W3EG72129S is a 2x64Mx72 Double Data Rate SDRAM memory module based on 512Mb DDR SDRAM component. The module consists of eighteen 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. * This product is under development, is not qualified or characterized and is subject to change without notice. VCC = VCCQ = +2.6V (200MHz) JEDEC standard 184 pin DIMM package PCB height: JD3: 30.48mm (1.20") NOTE: Consult factory for availability of: RoHS compliant products Vendor source control options Industrial temperature option OPERATING FREQUENCIES DDR400 @CL=3 Clock Speed CL-tRCD-tRP 200MHz 3-3-3 DDR333 @CL=2.5 166MHz 2.5-3-3 DDR26...