DDR2 RAMs, DDRII 533/667/800MHz Data Rate, 2.6V Power Supply

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Basic Info

Payment Type:	Telegraphic Transfer in Advance (Advance TT, T/T)

Product Description

Capacity: 2GB

Memory type: DDR (DDR2)

Number of pins: 240

Module type: DIMM

Function: non ECC memory

Warranty: 5 years

Memory and computer memory

168-/184-/240-pin socket type dual in line memory module(DIMM)

2.6V power supply

Data rate: 533/667/800Mbps (maximum) or 533, 667 and800MHz

2.5V (SSTL-2 compatible) I/O for DDR I products and 1.8V powersupply for DDR II products

Double data-rate architecture and two data transfers/clockcycle

Bi-directional, differential data strobe (DQS)transmitted/received with data

Used in capturing data at receiver

Data inputs and outputs are synchronized with DQS

DQS edge aligned with data for read and center for write

Differential clock inputs (CK and CK)

DLL aligns DQ and DQS transitions with CK transitions

Commands entered on each positive CK edge: data and data maskreferenced to both edges of DQS

Four internal banks for concurrent operating (component)

Data mask for write data

Auto recharge option for each burst access

Programmable burst length: 2, 4 and 8mm

Programmable/CAS latency: 3

Programmable output driver strength: normal or weak

Refresh cycles: 8192 refresh cycles/64ms

7.8US average periodic refresh interval (maximum)

Posted CAS by programmable additive latency for better commandand data bus efficiency

Off-chip driver impedance adjustment and on-die termination forbetter signal quality

DQS can be disabled for single-ended data strobe operating

Refresh types: auto and self

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