BL25664AA

512MB / 1GB / 2GB (x64) UNBUFFERED DDR2 SDRAM DIMM DDR2 UNBUFFERED SDRAM DIMM FEATURES 240-pin dual in-line memory module (DIMM) Fast data transfer rates: PC2-8500, PC2-6400, or PC25300 www.DataSheet4U.com 512MB (64 Meg x 64), 1GB (128 Meg x 64), and 2GB (256 Meg x 64) Exclusively designed for high-performance systems Critical performance parameters tested for functionality Speed verification performed in-system VDD = +2.2V ±0.1V, VDDQ = +2.2V ±0.1V VDDSPD = +1.7V to +3.6V Differential data strobe (DQ, DQS#) option Four-bit prefetch architechture Auto Refresh (CBR) and Self Refresh Mode 7.8125μs maximum average periodic refresh interval 64ms, 8,192-cycle refresh On-die termination (ODT) Serial Presence Detect (SPD) with EEPROM Gold edge contacts Aluminum heat spreader 1.18” (30mm) PCB Height BL6464AA BL12864AA BL25664AA TIMING PARAMETERS MODULE MARKING 1065 804 663 MODULE BANDWIDTH 8.5 GB/s 6.4 GB/s 5.3 GB/s LATENCY (CL - tRCD - tRP - tRAS) 5 - 5 - 5 - 15 * 4 - 4 - 4 - 12 * 3 - 3 - 3 - 12 * * Perfomance is verified during testing. PART NUMBERS PART NUMBER BL6464AA804 BL6464AA663 BL12864AA1065 BL12864AA804 BL12864AA663 BL25664AA804 MODULE DENSITY 512MB 512MB 1GB 1GB 1GB 2GB MEMORY CLOCK/ DATA BIT RATE 2.5ns/800 MT/s 3.0ns/667 MT/s 1.87ns/1066 MT/s 2.5ns/800 MT/s 3.0ns/667 MT/s 2.5ns/800 MT/s BANKING CONFIGURATION Single Single Single Single Single Dual COMPONENT CONFIGURATION 64 Meg x 8 64 Meg x 8 128 Meg x 8 128 Meg x 8 128 Meg x 8 128...