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128MB, 256MB, 512MB (x64, SR) 184-PIN DDR SDRAM UDIMM
DDR SDRAM UNBUFFERED DIMM
Features
• 184-pin dual in-line memory module (DIMM) • Fast data transfer rates: PC2100 or PC2700 • Utilizes 266 MT/s and 333 MT/s DDR SDRAM www.DataSheet4U.com components • 128MB (16 Meg x 64), 256MB (32 Meg x 64), and 512MB (64 Meg x 64) • VDD = VDDQ = +2.5V • VDDSPD = +2.3V to +3.6V • 2.5V I/O (SSTL_2 compatible) • Commands entered on each positive CK edge • DQS edge-aligned with data for READs; centeraligned with data for WRITEs • Internal, pipelined double data rate (DDR) architecture; two data accesses per clock cycle • Bidirectional data strobe (DQS) transmitted/ received with data—i.e.