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• 240-pin, unbuffered dual in-line memory module (UDIMM)

• Fast data transfer rates: PC2-6400, PC2-5300, PC2-4200, or PC2-3200

• 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

• Single or Dual-rank

• 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 (BLs): 4 or 8

• Adjustable data-output drive strength

• 64ms, 8192-cycle refresh

• On-die termination (ODT)

• Serial presence-detect (SPD) with EEPROM

Suitable for Desktop PC
Model Specification 2GB DDR2 800 Long DIMM
Working Voltage +1.8V ± 0.1V
CL 5 cycles
Row Cycle Time (tRCmin) 54ns (min.)

Refresh to Active/Refresh

Command Time (tRFCmin)

127.5ns (min.)
Row Active Time (tRASmin) 39ns (min.)
Maximum Operating Power 2.225W
UL Rating 94V - 0

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