PIC16F84A 18-pin Enhanced Flash/EEPROM 8-Bit MCU Data Sheet
PIC16F84A 18-pin Enhanced Flash/EEPROM 8-Bit MCU Data Sheet
PIC16F84A 18-pin Enhanced Flash/EEPROM 8-Bit MCU Data Sheet
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<strong>PIC16F84A</strong>FIGURE 9-5:RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UPTIMER TIMINGVDDMCLR30InternalPORPWRTTime-outOSCTime-out3332InternalRESETWatchdogTimerRESET343134I/O PinsTABLE 9-5RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UPTIMER REQUIREMENTSParameterNo. Sym Characteristic Min Typ† Max Units Conditions30 TmcL MCLR Pulse Width (low) 2 * — — µs VDD = 5.0V, extended31 Twdt Watchdog Timer Time-out Period 7 * <strong>18</strong> 33 * ms VDD = 5.0V, extended(No Prescaler)32 Tost Oscillation Start-up Timer Period 1024TOSC ms TOSC = OSC1 period33 Tpwrt Power-up Timer Period 28 * 72 132 * ms VDD = 5.0V, extended34 TIOZ I/O Hi-impedance from MCLR — — 100 * nsLow or reset* These parameters are characterized but not tested.† <strong>Data</strong> in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are nottested.© 1998 Microchip Technology Inc. Preliminary DS35007A-page 51
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