White Electronic Designs W3EG72255S-D3 -JD3 -AJD3 PRELIMINARY* 2GB – 2x128Mx72 DDR SDRAM REGISTERED ECC, w/PLL FEATURES Double-data-rate architecture DDR200, DDR266 and DDR333: • JEDEC design specifications 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 www.
DataSheet4U.
com DESCRIPTION The W3EG72255S is a 2x128Mx72 Double Data Rate SDRAM memory module based on 512Mb DDR SDRAM components.
The module consists ...

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