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W3EG72125S-JD3 Datasheet(PDF) 1 Page - White Electronic Designs Corporation |
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W3EG72125S-JD3 Datasheet(HTML) 1 Page - White Electronic Designs Corporation |
1 / 14 page W3EG72125S-D3 -JD3 -AJD3 November 2004 Rev. 2 PRELIMINARY* 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs White Electronic Designs Corp. reserves the right to change products or specifications without notice. 1GB – 2x64Mx72 DDR SDRAM REGISTERED ECC w/PLL The W3EG72125S is a 2x64Mx72 Double Data Rate SDRAM memory module based on 256Mb DDR SDRAM components. The module consists of eighteen 2x64Mx4 stacked (36 components), 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 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 Clock Speeds of 100MHz, 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 = 2.5V ± 0.2V JEDEC standard 184 pin DIMM package • Package height options: JD3: 30.48mm (1.20") and AJD3: 28.70mm (1.13") NOTE: Consult factory for availability of: • RoHS compliant products • Vendor source control options • Industrial temperature option OPERATING FREQUENCIES DDR333 @CL=2.5 DDR266 @CL=2 DDR266 @CL=2 DDR266 @CL=2.5 DDR200 @CL=2 Clock Speed 166MHz 133MHz 133MHz 133MHz 100MHz CL-tRCD-tRP 2.5-3-3 2-2-2 2-3-3 2.5-3-3 2-2-2 |
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