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  • 4gb 800mhz Full Compatible Ddr2 Ram - China

    price: contact company for price

    Capacity: 1GB/2GB/4GB DDR2 RAM

    DDR Memory Type:DDR2

    No. of Pins:240 Pin

    Memory Speed MHz:533/667/800MHZ

    Module Type:LONG DIMM

    Function:Non ECC Memory

    1) DDRII 533/667/800 MHz

    2) 168/184/240-pin socket type dual in line memory module (DIMM)

    3) 2.6V power supply

    4) Data rate: 533/667/800Mbps (max.)

    5) 2.5 V (SSTL-2 compatible) I/O for DDR I products, 1.8Vpower supply for DDR II products

    6) Double-data-rate architecture, two data transfers per clock cycle

    7) Bi-directional, differential data strobe (DQS) is transmitted/received with data, to be used in capturing data at the receiver

    8) Data inputs and outputs are synchronized with DQS

    9) DQS is edge aligned with data for read, center aligned with data for write

    10) Differential clock inputs (CK and CK)

    11) DLL aligns DQ and DQS transitions with CK transitions

    12) Commands entered on each positive CK edge: data and data mask referenced to both edges of DQS

    13) Four internal banks for concurrent operation (component)

    14) Data mask(DM) for write data

    15) Auto precharge option for each burst access

    16) Programmable burst length: 2, 4, 8

    17) Programmable/CAS latency (CL): 3

    18) Programmable output driver strength: normal/weak

    19) Refresh cycles: (8192 refresh cycles/64ms)

    20) 7.8US maximum average periodic refresh interval

    21) Posted CAS by programmable additive latency for better command and data bus efficiency

    22) Off-chip-driver impedance adjustment and on-die-termination for better signal quality

    23) DQS can be disabled for single-ended data strobe operation

    24) 2 variations of refresh

    25) Auto refresh

    26) Self refresh


    Company Contact:


    • Phone: 86075583952193

    • Address: Room 1110,Block B Zhantao Technology Building,Minz, shenzhen, China

    • Email: Email


    Published date: October 19, 2013 -

    • Business Description: Joinwin Industrial Development Limited was founded in2010,its main

      products cover DDR, TV BOX, MID, MP,USB,Memory Card and OEM, ODM are

      also welcomed. Products has been exported to South america,

      africa, mid east, USA and UK etc.

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