• 參數(shù)資料
    型號: PIC16C620A/JW
    廠商: Microchip Technology
    文件頁數(shù): 11/89頁
    文件大?。?/td> 0K
    描述: IC MCU EPROM 512X14 COMP 18CDIP
    標(biāo)準包裝: 25
    系列: PIC® 16C
    核心處理器: PIC
    芯體尺寸: 8-位
    速度: 20MHz
    外圍設(shè)備: 欠壓檢測/復(fù)位,POR,WDT
    輸入/輸出數(shù): 13
    程序存儲器容量: 896B(512 x 14)
    程序存儲器類型: EPROM,UV
    RAM 容量: 96 x 8
    電壓 - 電源 (Vcc/Vdd): 2.5 V ~ 5.5 V
    振蕩器型: 外部
    工作溫度: 0°C ~ 70°C
    封裝/外殼: 18-CDIP(0.300",7.62mm)窗口
    包裝: 管件
    19
    AT90S1200
    0838H–AVR–03/02
    Sleep Modes
    To enter the sleep modes, the SE bit in MCUCR must be set (one) and a SLEEP instruc-
    tion must be executed. If an enabled interrupt occurs while the MCU is in a sleep mode,
    the MCU awakes, executes the interrupt routine, and resumes execution from the
    instruction following SLEEP. The contents of the register file and the I/O memory are
    unaltered. If a Reset occurs during sleep mode, the MCU wakes up and executes from
    the Reset Vector.
    Idle Mode
    When the SM bit is cleared (zero), the SLEEP instruction makes the MCU enter the Idle
    mode, stopping the CPU but allowing Timer/Counters, Watchdog and the interrupt sys-
    tem to continue operating. This enables the MCU to wake up from external triggered
    interrupts as well as internal ones like Timer Overflow interrupt and Watchdog Reset. If
    wakeup from the Analog Comparator interrupt is not required, the Analog Comparator
    can be powered down by setting the ACD-bit in the Analog Comparator Control and Sta-
    tus Register (ACSR). This will reduce power consumption in Idle mode. When the MCU
    wakes up from Idle mode, the CPU starts program execution immediately.
    Power-down Mode
    When the SM bit is set (one), the SLEEP instruction makes the MCU enter Power-down
    mode. In this mode, the External Oscillator is stopped while the External Interrupts and
    the Watchdog (if enabled) continue operating. Only an External Reset, a Watchdog
    Reset (if enabled), an external level interrupt on INT0 can wake up the MCU.
    Note that when a level triggered interrupt is used for wake-up from Power-down, the low
    level must be held for a time longer than the reset delay time-out period tTOUT. Other-
    wise, the device will not wake up.
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