DDR2 RAM with 1GB Memory Capacity, 667MHz Data Rate

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Basic Info

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

Product Description

Data rating:

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

2.6V power supply

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)

DDR: 400/333MHz

DDRII: 533/667/800MHz

DDR3: 1066/1333MHz

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