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    參數(shù)資料
    型號(hào): HY5PS12821LF
    廠(chǎng)商: Hynix Semiconductor Inc.
    英文描述: 512Mb DDR2 SDRAM
    中文描述: 512Mb DDR2 SDRAM芯片
    文件頁(yè)數(shù): 19/35頁(yè)
    文件大?。?/td> 624K
    代理商: HY5PS12821LF
    Rev. 1.0 / Feb. 2005
    19
    1
    HY5PS12421(L)F
    HY5PS12821(L)F
    HY5PS121621(L)F
    3.5. Input/Output Capacitance
    4. Electrical Characteristics & AC Timing Specification
    ( 0
    ℃ ≤
    T
    CASE
    ≤ 95℃;
    V
    DDQ
    = 1.8 V +/- 0.1V; V
    DD
    = 1.8V +/- 0.1V)
    Refresh Parameters by Device Density
    DDR2 SDRAM speed bins and tRCD, tRP and tRC for corresponding bin
    Note 1: 8 bank device Precharge All Allowance : tRP for a Precharge All command for and 8 Bank device
    will equal to tRP+1*tCK, where tRP are the values for a single bank prechrarge, which are shown in the
    above table.
    Parameter
    Symbol
    DDR2 400
    DDR2 533
    DDR2 667
    DDR2 800
    Units
    Min
    Max
    Min
    Max
    Input capacitance, CK and CK
    CCK
    1.0
    2.0
    1.0
    2.0
    pF
    Input capacitance delta, CK and CK
    CDCK
    x
    0.25
    x
    0.25
    pF
    Input capacitance, all other input-only pins
    CI
    1.0
    2.0
    1.0
    2.0
    pF
    Input capacitance delta, all other input-only pins
    CDI
    x
    0.25
    x
    0.25
    pF
    Input/output capacitance, DQ, DM, DQS, DQS
    CIO
    2.5
    4.0
    2.5
    3.5
    pF
    Input/output capacitance delta, DQ, DM, DQS, DQS
    CDIO
    x
    0.5
    x
    0.5
    pF
    Parameter
    Symbol
    256Mb 512Mb
    1Gb
    2Gb
    4Gb
    Units
    Refresh to Active/Refresh command
    time
    tRFC
    75
    105
    127.5
    195
    327.5
    ns
    Average periodic refresh interval
    tREFI
    0
    ℃≤
    T
    CASE
    ≤ 95℃
    7.8
    7.8
    7.8
    7.8
    7.8
    ns
    85
    ℃<
    T
    CASE
    ≤ 95℃
    3.9
    3.9
    3.9
    3.9
    3.9
    ns
    Speed
    DDR2-667
    DDR2-533
    DDR2-400
    Units
    Bin(CL-tRCD-tRP)
    5-5-5
    4-4-4
    3-3-3
    Parameter
    min
    min
    min
    CAS Latency
    5
    4
    3
    tCK
    tRCD
    15
    15
    15
    ns
    tRPNote1
    15
    15
    15
    ns
    tRAS
    45
    45
    40
    ns
    tRC
    60
    60
    55
    ns
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    HY5PS12821LF-3.75 制造商:HYNIX 制造商全稱(chēng):Hynix Semiconductor 功能描述:512Mb DDR2 SDRAM
    HY5PS12821LF-4 制造商:HYNIX 制造商全稱(chēng):Hynix Semiconductor 功能描述:512Mb DDR2 SDRAM
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    HY5PS12823F 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:64Mx8|1.8V|8K|D43/D44/D54/D55|DDR II SDRAM - 512M
    HY5PS12823LF 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:64Mx8|1.8V|8K|D43/D44/D54/D55|DDR II SDRAM - 512M