W3EG6433S-BD4

White Electronic Designs W3EG6433S-AD4 -BD4 PRELIMINARY* 256MB - 32Mx64 DDR SDRAM UNBUFFERED, w/PLL 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") www.DataSheet4U.com BD4: 31.75mm (1.25") NOTE: Consult factory for availability of: Lead-Free or RoHS Products Vendor source control options Industrial temperature option * This product is under development, is not qualified or characterized and is subject to change without notice. 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. OPERATING FREQUENCIES DDR333 @CL=2.5 Clock Speed CL-tRCD-tRP 166MHz 2.5-3-3 DDR266 @CL=2 133MHz 2-2-2 DDR266 @CL=2.5 133MHz 2.5-3-3 DDR200 @CL=2 100MHz 2-2-2 White E...