參數(shù)資料
    型號: GMS97C54
    英文描述: 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
    中文描述: 8位CMOS微控制器(8位的CMOS微控制器)
    文件頁數(shù): 36/59頁
    文件大小: 812K
    代理商: GMS97C54
    AC Characteristics for GMS90 series (24MHz version)
    V
    CC
    = 5 V + 10%, - 15%;
    V
    SS
    = 0 V;
    T
    A
    = 0
    °
    C to 70
    °
    C
    (
    C
    L
    for port 0, ALE and PSEN outputs = 100 pF;
    C
    L
    for all other outputs = 80 pF)
    Program Memory characteristics
    Parameter
    Symbol
    Limit Values
    Unit
    24 MHz
    Clock
    Variable Clock
    1/
    t
    CLCL
    = 3.5 MHz to 24 MHz
    min.
    max.
    min.
    max.
    ALE pulse width
    t
    LHLL
    43
    -
    2
    t
    CLCL
    - 40
    -
    ns
    Address setup to ALE
    t
    AVLL
    17
    -
    t
    CLCL
    - 25
    -
    ns
    Address hold after ALE
    t
    LLAX
    17
    -
    t
    CLCL
    - 25
    -
    ns
    ALE low to valid instr in
    t
    LLIV
    -
    80
    -
    4
    t
    CLCL
    - 87
    ns
    ALE to PSEN
    t
    LLPL
    22
    -
    t
    CLCL
    - 20
    -
    ns
    PSEN pulse width
    t
    PLPH
    95
    -
    3
    t
    CLCL
    - 30
    -
    ns
    PSEN to valid instr in
    t
    PLIV
    -
    60
    -
    3
    t
    CLCL
    - 65
    ns
    Input instruction hold after PSEN
    t
    PXIX
    0
    -
    0
    -
    ns
    Input instruction float after PSEN
    t
    PXIZ*)
    -
    32
    -
    t
    CLCL
    - 10
    ns
    Address valid after PSEN
    t
    PXAV*)
    37
    -
    t
    CLCL
    - 5
    -
    ns
    Address to valid instruction in
    t
    AVIV
    -
    148
    -
    5
    t
    CLCL
    - 60
    ns
    Address float to PSEN
    t
    AZPL
    0
    -
    0
    -
    ns
    *) Interfacing the GMS90 series to devices with float times up to 35 ns is permissible. This limited bus
    contention will not cause any damage to port 0 Drivers.
    GMS90 Series
    8-Bit CMOS Microcontroller
    LG Semicon MCU
    36
    MAY. 1998
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