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    參數(shù)資料
    型號: ST72324BLK4BA/XXX
    廠商: STMICROELECTRONICS
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
    封裝: 0.400 INCH, PLASTIC, SDIP-32
    文件頁數(shù): 47/151頁
    文件大?。?/td> 1209K
    代理商: ST72324BLK4BA/XXX
    ST72F324L, ST72324BL
    140/151
    DEVICE CONFIGURATION AND ORDERING INFORMATION (Cont’d)
    OPTION BYTE 1
    OPT7= PKG1 Pin package selection bit
    This option bit selects the package.
    Note: On the chip, each I/O port has 8 pads. Pads
    that are not bonded to external pins are in input
    pull-up configuration after reset. The configuration
    of these pads must be kept at reset state to avoid
    added current consumption.
    OPT6 = RSTC RESET clock cycle selection
    This option bit selects the number of CPU cycles
    applied during the RESET phase and when exiting
    HALT mode. For resonator oscillators, it is advised
    to select 4096 due to the long crystal stabilization
    time.
    0: Reset phase with 4096 CPU cycles
    1: Reset phase with 256 CPU cycles
    OPT5:4 = OSCTYPE[1:0] Oscillator Type
    These option bits select the ST7 main clock
    source type.
    CAUTION: In Flash devices, External Clock
    Source is not supported if the PLL is enabled.
    OPT3:1 = OSCRANGE[2:0] Oscillator range
    When the resonator oscillator type is selected,
    these option bits select the resonator oscillator
    current source corresponding to the frequency
    range of the used resonator. Otherwise, these bits
    are used to select the normal operating frequency
    range.
    OPT0 = PLL OFF PLL activation
    This option bit activates the PLL which allows mul-
    tiplication by two of the main input clock frequency.
    The PLL is guaranteed only with an input frequen-
    cy between 2 and 4MHz.
    0: PLL x2 enabled
    1: PLL x2 disabled
    Caution: the PLL can be enabled only if the “OSC
    RANGE” (OPT3:1) bits are configured to “MP -
    2~4MHz”. Otherwise, the device functionality is
    not guaranteed.
    Caution: The PLL must not be used with the inter-
    nal RC oscillator.
    Version
    Selected Package
    PKG1
    JTQFP44
    1
    K
    TQFP32 / SDIP32
    0
    Clock Source
    OSCTYPE
    10
    Resonator Oscillator
    0
    Reserved
    0
    1
    Internal RC Oscillator
    1
    0
    External Source
    1
    Typ. Freq. Range
    OSCRANGE
    210
    LP
    1~2MHz
    0
    MP
    2~4MHz
    0
    1
    MS
    4~8MHz
    0
    1
    0
    HS
    8~16MHz
    0
    1
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