參數(shù)資料
    型號(hào): AS7C256A-15JIN
    廠商: ALLIANCE SEMICONDUCTOR CORP
    元件分類: DRAM
    英文描述: 5V 32K X 8 CMOS SRAM (Common I/O)
    中文描述: 32K X 8 STANDARD SRAM, 15 ns, PDSO28
    封裝: 0.300 INCH, LEAD FREE, PLASTIC, SOJ-28
    文件頁(yè)數(shù): 3/9頁(yè)
    文件大小: 248K
    代理商: AS7C256A-15JIN
    AS7C256A
    9/24/04; v.1.2
    Alliance Semiconductor
    P. 3 of 9
    Recommended operating conditions
    Parameter
    Supply voltage
    * V
    IL
    min = –1.0V for pulse width less than 5ns.
    ** V
    IH
    max = V
    CC
    + 2.0V for pulse width less than 5ns.
    DC operating characteristics (over the operating range)
    1
    Capacitance (f = 1MHz, T
    a
    = room temperature, V
    CC
    = NOMINAL)
    4
    Parameter
    Symbol
    V
    CC
    V
    IH**
    V
    IL*
    T
    A
    T
    A
    Min
    4.5
    Typical
    5.0
    Max
    5.5
    Unit
    V
    Input voltage
    2.2
    V
    CC
    +0.5
    0.8
    70
    V
    -0.5
    0
    V
    o
    C
    o
    C
    Ambient operating temperature
    commercial
    industrial
    –40
    85
    Parameter
    Input leakage
    current
    Sym
    Test conditions
    V
    CC
    = Max,
    V
    in
    = GND to V
    CC
    |
    I
    LO
    |
    V
    CC
    = Max,
    V
    OUT
    = GND to V
    CC
    -10
    -12
    -15
    -20
    Unit Notes
    Min
    Max
    Min
    Max
    Min
    Max
    Min
    Max
    |
    I
    LI
    |
    1
    1
    1
    1
    μA
    Output leakage
    current
    1
    1
    1
    1
    μA
    Operating
    power supply
    current
    I
    CC
    V
    CC
    = Max, CE
    <
    V
    IL
    f = f
    Max
    , I
    OUT
    = 0mA
    75
    -
    70
    65
    60
    mA
    Standby power
    supply current
    I
    SB
    V
    CC
    = Max, CE
    >
    V
    IH
    f = f
    Max
    V
    CC
    = Max, CE
    >
    V
    CC
    –0.2V
    V
    IN
    < 0.2V or
    V
    IN
    > V
    CC
    –0.2V, f = 0
    V
    OL
    I
    OL
    = 8 mA, V
    CC
    = Min
    V
    OH
    I
    OH
    = –4 mA, V
    CC
    = Min
    45
    45
    40
    40
    mA
    I
    SB1
    2.0
    2.0
    2.0
    2.0
    mA
    Output voltage
    0.4
    0.4
    0.4
    0.4
    V
    V
    4
    4
    2.4
    2.4
    2.4
    2.4
    Symbol
    Signals
    Test conditions
    Max
    Unit
    Input capacitance
    I/O capacitance
    C
    IN
    C
    I/O
    A,
    CE
    ,
    WE
    ,
    OE
    I/O
    V
    in
    = 0V
    V
    in
    = V
    out
    = 0V
    5
    7
    pF
    pF
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