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    參數(shù)資料
    型號: MC68HCP11A1MP2
    廠商: MOTOROLA INC
    元件分類: 微控制器/微處理器
    英文描述: HCMOS Single-Chip Microcontroller
    中文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PDIP48
    封裝: DIP-48
    文件頁數(shù): 139/158頁
    文件大?。?/td> 776K
    代理商: MC68HCP11A1MP2
    MC68HC11A8
    TECHNICAL DATA
    ELECTRICAL CHARACTERISTICS
    MOTOROLA
    A-19
    A
    NOTES:
    1.Formula only for dc to 2 MHz.
    2.Input clocks with duty cycles other than 50% affect bus performance. Timing parameters affected by input clock
    duty cycle are identified by (a) and (b). To recalculate the approximate bus timing values, substitute the following
    expressions in place of 1/8 t
    cyc
    in the above formulas, where applicable:
    (a) (1-DC) x 1/4 t
    cyc
    (b) DC x 1/4 t
    cyc
    Where:
    DC is the decimal value of duty cycle percentage (high time).
    3.All timing is shown with respect to 20% V
    DD
    and 70% V
    DD
    , unless otherwise noted.
    Table A-7 Expansion Bus Timing
    V
    DD
    = 5.0 Vdc
    ±
    10%, V
    SS
    = 0 Vdc, T
    A
    = T
    L
    to T
    H
    Characteristic
    Num
    Symbol
    1.0 MHz
    Min
    dc
    1000
    477
    2.0 MHz
    Min
    dc
    500
    227
    3.0 MHz
    Min
    dc
    333
    146
    Unit
    Max
    1.0
    Max
    2.0
    Max
    3.0
    Frequency of Operation (E-Clock Frequency)
    Cycle Time
    Pulse Width, E Low
    PW
    EL
    = 1/2 t
    cyc
    – 23 ns(Note 1)
    Pulse Width, E High
    PW
    EH
    = 1/2 t
    cyc
    – 28 ns(Note 1)
    E and AS Rise and Fall Time
    f
    o
    MHz
    ns
    ns
    1
    2
    t
    cyc
    PW
    EL
    3
    PW
    EH
    472
    222
    141
    ns
    4a, b
    t
    r
    t
    f
    20
    20
    20
    20
    20
    15
    ns
    9
    Address Hold Time
    t
    AH
    = 1/8 t
    cyc
    – 29.5 ns (Note 1, 2a)
    Non-Muxed Address Valid Time to E Rise
    t
    AV
    = PW
    EL
    – (t
    ASD
    + 80 ns)(Note 1, 2a)
    Read Data Setup Time
    Read Data Hold Time (Max = t
    MAD
    )
    Write Data Delay Time
    t
    DDW
    = 1/8 t
    cyc
    + 65.5 ns (Note 1, 2a)
    Write Data Hold Time
    t
    DHW
    = 1/8 t
    cyc
    – 29.5 ns(Note 1, 2a)
    Muxed Address Valid Time to E Rise
    t
    AVM
    = PW
    EL
    – (t
    ASD
    + 90 ns)(Note 1, 2a)
    Muxed Address Valid Time to AS Fall
    t
    ASL
    = PW
    ASH
    – 70 ns(Note 1)
    Muxed Address Hold Time
    t
    AHL
    = 1/8 t
    cyc
    – 29.5 ns(Note 1, 2b)
    Delay Time, E to AS Rise
    t
    ASD
    = 1/8 t
    cyc
    – 9.5 ns (Note 1, 2a)
    Pulse Width, AS High
    PW
    ASH
    = 1/4 t
    cyc
    – 29 ns(Note 1)
    Delay Time, AS to E Rise
    t
    ASED
    = 1/8 t
    cyc
    – 9.5 ns(Note 1, 2b)
    MPU Address Access Time(Note 2a)
    t
    ACCA
    = t
    cyc
    – (PW
    EL
    – t
    AVM
    ) – t
    DSR
    – t
    f
    MPU Access Time
    t
    ACCE
    = PW
    EH
    – t
    DSR
    Muxed Address Delay
    (Previous Cycle MPU Read)
    t
    MAD
    = t
    ASD
    + 30 ns(Note 1, 2a)
    t
    AH
    95.5
    33
    26
    ns
    12
    t
    AV
    281.5
    94
    54
    ns
    17
    18
    19
    t
    DSR
    t
    DHR
    t
    DDW
    30
    0
    30
    0
    83
    128
    30
    0
    51
    71
    ns
    ns
    ns
    145.5
    190.5
    21
    t
    DHW
    95.5
    33
    26
    ns
    22
    t
    AVM
    271.5
    84
    54
    ns
    24
    t
    ASL
    151
    26
    13
    ns
    25
    t
    AHL
    95.5
    33
    31
    ns
    26
    t
    ASD
    115.5
    53
    31
    ns
    27
    PW
    ASH
    221
    96
    63
    ns
    28
    t
    ASED
    115.5
    53
    31
    ns
    29
    t
    ACCA
    744.5
    307
    196
    ns
    35
    t
    ACCE
    442
    192
    111
    ns
    36
    t
    MAD
    145.5
    83
    51
    ns
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