PIC16F8X_13 Datasheet, PDF (84/128 Pages) Microchip Technology – 18-pin Flash/EEPROM 8-Bit Microcontrollers

PIC16F8X
PIC16F83/84
FIGURE 10-5: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
VDD
MCLR
Internal
POR
PWRT
Time-out
OSC
Time-out
Internal
RESET
Watchdog
Timer
RESET
I/O Pins
33
32
30
31
34
34
TABLE 10-5 RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ†
Max Units
Conditions
30
TmcL MCLR Pulse Width (low)
1000 *
—
—
ns 2.0V  VDD  6.0V
31
Twdt Watchdog Timer Time-out Period 7 *
18
33 * ms VDD = 5.0V
(No Prescaler)
32
Tost Oscillation Start-up Timer Period
1024TOSC
ms TOSC = OSC1 period
33
Tpwrt Power-up Timer Period
28 *
72
132 * ms VDD = 5.0V
34
TIOZ I/O Hi-impedance from MCLR Low —
—
100 * ns
or reset
* These parameters are characterized but not tested.
† Data in "Typ" column is at 5V, 25C unless otherwise stated. These parameters are for design guidance only and are not
tested.
DS30430D-page 11-84
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