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    參數(shù)資料
    型號(hào): MC68HC705C9ACFNE
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
    封裝: PLASTIC, LCC-44
    文件頁數(shù): 6/118頁
    文件大?。?/td> 750K
    代理商: MC68HC705C9ACFNE
    3.3- Vdc Serial Peirpheral Interface Timing
    MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
    Freescale Semiconductor
    103
    12.10 3.3- Vdc Serial Peirpheral Interface Timing
    No.
    Characteristic(1)
    1. V
    DD = 3.3 Vdc ± 0.3 Vdc; VSS = 0 Vdc, TA = –40 to +85 °C, unless otherwise noted. Refer to Figure 12-9 and Figure 12-10.
    Symbol
    Min
    Max
    Unit
    Operating frequency
    Master
    Slave
    f
    OP
    (M)
    f
    OP
    (S)
    dc
    0.5
    1.0
    f
    OP
    MHz
    1
    Cycle time
    Master
    Slave
    t
    CYC
    (M)
    t
    CYC
    (S)
    2.0
    1.0
    t
    CYC
    s
    2
    Enable lead time
    Master
    Slave
    t
    LEAD
    (M)
    t
    LEAD
    (S)
    (2)
    500
    2. Signal production depends on software.
    ns
    3
    Enable lag time
    Master
    Slave
    t
    LAG
    (M)
    t
    LAG
    (S)
    (2)
    1.5
    ns
    s
    4
    Clock (SCK) high time
    Master
    Slave
    t
    W
    (SCKH)M
    t
    W
    (SCKH)S
    720
    400
    ns
    5
    Clock (SCK) low time
    Master
    Slave
    t
    W
    (SCKL)M
    t
    W
    (SCKL)S
    720
    400
    ns
    6
    Data setup time (inputs)
    Master
    Slave
    t
    SU
    (M)
    t
    SU
    (S)
    200
    ns
    7
    Data hold time (inputs)
    Master
    Slave
    t
    H
    (M)
    t
    H
    (S)
    200
    ns
    8
    Slave access time (time to data active from
    high-impedance state)
    t
    A
    0
    250
    ns
    9
    Slave disable time (hold time to high-impedance state)
    t
    DIS
    500
    ns
    10
    Data valid
    Master (before capture edge)
    Slave (after enable edge)(3)
    3. Assumes 200 pF load on all SPI pins.
    t
    V
    (M)
    t
    V
    (S)
    0.25
    500
    t
    CYC
    (M)
    ns
    11
    Data hold time (outputs)
    Master (after capture edge)
    Slave (after enable edge)
    t
    HO
    (M)
    t
    HO
    (S)
    0.25
    0
    t
    CYC
    (M)
    ns
    12
    Rise time (20% V
    DD to 70% VDD, CL = 200 pF)
    SPI outputs (SCK, MOSI, and MISO)
    SPI inputs (SCK, MOSI, MISO, and SS)
    t
    RM
    t
    RS
    200
    2.0
    ns
    s
    13
    Fall time (70% V
    DD to 20% VDD, CL = 200 pF)
    SPI outputs (SCK, MOSI, and MISO)
    SPI inputs (SCK, MOSI, MISO, and SS)
    t
    FM
    t
    FS
    200
    2.0
    ns
    s
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