DDR RAM with 168/184/240-pin socket type dual in line memory module

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Basic Info

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

Product Description

Capacity: 512MB to 2GB DDR 333/400MHz and DDR2533/667/800MHz

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

Data rate: 533/667/800Mbps

2.5V (SSTL-2 compatible) I/O for DDR products and 1.8V powersupply for DDR2 products

Chip set organization: 64 x 8, 128 x 4 and 128 x 8

Double-data-rate architecture and two data transfers per clockcycle

Bi-directional, differential data strobe (DQS)transmitted/received with data, to be used in capturing data atreceiver

Data inputs and outputs are synchronized with DQS

DQS edge aligned with data for read and center aligned withdata for write

Various clock inputs (CK and CK)

DLL aligns DQ and DQS with CK transitions

Brands of chip set: ELPIDA, Mosel and NANYA

Four internal banks for concurrent operation (component)

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

Programmable burst length: 2, 4 and 8

Programmable/CAS latency (CL): 3

Refresh cycles: 8192 refresh cycles/64ms

2 variations of refresh: auto and self refresh

7.8US maximum average periodic refresh interval

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