MT8HTF12864AY Datasheet | Micron Technology

256MB, 512MB, 1GB (x64, SR) 240-Pin DDR2 SDRAM UDIMM Features DDR2 SDRAM UDIMM MT8HTF3264AY - 256MB MT8HTF6464AY - 512MB MT8HTF12864AY - 1GB Features - 240-pin, unbuffered dual in-line memory module - Fast data transfer rates: PC2-3200, PC2-4200, PC2-5300, PC2-6400, or PC2-8500 - 256MB (32 Meg x 64), 512MB (64 Meg x 64), or 1GB (128 Meg x 64 - VDD = VDDQ = 1.8V - VDDSPD = 1.7- 3.6V - JEDEC-standard 1.8V I/O (SSTL_18-patible) - 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 t CK - 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 A and D) PCB height: 30.0mm...