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    參數(shù)資料
    型號: W78E58P-40
    廠商: WINBOND ELECTRONICS CORP
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT MICROCONTROLLER
    中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
    封裝: PLASTIC, LCC-44
    文件頁數(shù): 13/23頁
    文件大小: 307K
    代理商: W78E58P-40
    W78E58
    Publication Release Date: November 1997
    - 13 -
    Revision A2
    DC Characteristics, continued
    PARAMETER
    SYM.
    SPECIFICATION
    UNIT
    TEST CONDITIONS
    MIN.
    MAX.
    Output Low Voltage
    P0, ALE, PSEN [*3]
    V
    OL2
    -
    0.45
    V
    V
    DD
    = 4.5V
    I
    OL
    = +4mA
    Sink Current
    P1, P2, P3, P4
    Sink Current
    I
    SK1
    4
    12
    mA
    V
    DD
    = 4.5V
    Vs = 0.45V
    V
    DD
    = 4.5V
    Vs = 0.45V
    P0, ALE, PSEN
    I
    SK2
    10
    20
    mA
    Output High Voltage
    P1, P2, P3, P4
    V
    OH1
    2.4
    -
    V
    V
    DD
    = 4.5V
    I
    OH
    = -100
    μ
    A
    V
    DD
    = 4.5V
    I
    OH
    = -400
    μ
    A
    Output High Voltage
    P0, ALE, PSEN [*3]
    V
    OH2
    2.4
    -
    V
    Source Current
    P1, P2, P3, P4
    Source Current
    I
    SR1
    -120
    -250
    μ
    A
    V
    DD
    = 4.5V
    Vs = 2.4V
    V
    DD
    = 4.5V
    Vs = 2.4V
    P0, ALE, PSEN
    I
    SR2
    -8
    -14
    mA
    Notes:
    *1. RST pin is a Schmitt trigger input. RST has internal pull-low resistors of about 30 K
    .
    *3. P0, ALE and /PSEN are tested in the external access mode.
    *4. XTAL1 is a CMOS input.
    *5. Pins of P1, P2, P3, P4 can source a transition current when they are being externally driven from 1 to 0. The transition
    current reaches its maximum value when V
    IN
    approximates to 2V.
    AC CHARACTERISTICS
    The AC specifications are a function of the particular process used to manufacture the part, the
    ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the
    specifications can be expressed in terms of multiple input clock periods (T
    CP
    ), and actual parts will
    usually experience less than a
    ±
    20 nS variation. The numbers below represent the performance
    expected from a 0.8 micron CMOS process when using 2 and 4 mA output buffers.
    Clock Input Waveform
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