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W3EG7235S265JD3 Datasheet(PDF) 1 Page - White Electronic Designs Corporation |
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W3EG7235S265JD3 Datasheet(HTML) 1 Page - White Electronic Designs Corporation |
1 / 12 page 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs November 2004 Rev. 2 PRELIMINARY* W3EG7235S-JD3 OPERATING FREQUENCIES DDR266 @CL=2 DDR266 @CL=2.5 DDR200 @CL=2 Clock Speed 133MHz 133MHz 100MHz CL-tRCD-tRP 2-2-2 2.5-3-3 2-2-2 256MB – 2x16Mx72 DDR SDRAM REGISTERED ECC, w/PLL The WED3DG7235S is a 2x16Mx72 Double Data Rate SDRAM memory module based on 128Mb DDR SDRAM component. The module consists of eighteen 16Mx8 DDR SDRAMs in 66 pin TSOP packages 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 Lengths 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. DESCRIPTION FEATURES Double-data-rate architecture Speeds of 100MHz and 133MHz 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 184 pin DIMM package • Package height option: JD3 30.48 mm (1:20") NOTE: Consult factory for availability of: • RoHS compliant products • Vendor source control options • Industrial temperature option |
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