MT4HTF6464AY

128MB, 256MB, 512MB (x64, SR) 240-Pin DDR2 SDRAM UDIMM Features DDR2 SDRAM UDIMM MT4HTF1664AY – 128MB MT4HTF3264AY – 256MB MT4HTF6464AY – 512MB Features 240-pin, unbuffered dual in-line memory module (UDIMM) Fast data transfer rates: PC2-3200, PC2-4200, PC2-5300, or PC2-6400 128MB (16 Meg x 64), 256MB (32 Meg x 64), 512MB (64 Meg x 64) VDD = VDDQ = 1.8V VDDSPD = 1.7–3.6V JEDEC-standard 1.8V I/O (SSTL_18-compatible) Differential data strobe (DQS, DQS#) option 4n-bit prefetch architecture Multiple internal device banks for concurrent operation Programmable CAS latency (CL) Posted CAS additive latency (AL) WRITE latency = READ latency - 1 tCK Programmable burst lengths (BL): 4 or 8 Adjustable data-output drive strength 64ms, 8192-cycle refresh On-die termination (ODT) Serial presence detect (SPD) with EEPROM Gold edge contacts Single rank Figure 1: 240-Pin UDIMM (MO-237 R/C C) Module height 30.0mm (1.18...