Datasheet
1997-2013 Microchip Technology Inc. DS30561C-page 103
PIC12C67X
FIGURE 12-7: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, AND POWER-UP
TIMER TIMING
TABLE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
Parameter
No.
Sym Characteristic Min Typ† Max Units Conditions
30 TmcL MCLR Pulse Width (low) 2 — — sVDD = 5V, –40°C to +125°C
31* Twdt Watchdog Timer Time-out Period
(No Prescaler)
71833msVDD = 5V, –40°C to +125°C
32 Tost Oscillation Start-up Timer Period — 1024T
OSC ——TOSC = OSC1 period
33* Tpwrt Power up Timer Period 28 72 132 ms V
DD = 5V, –40°C to +125°C
34 TIOZ I/O Hi-impedance from MCLR
Low or Watchdog Timer Reset
——2.1s
* 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.
VDD
MCLR
Internal
POR
PWRT
Timeout
OSC
Timeout
Internal
RESET
Watchdog
Timer
RESET
33
32
30
31
34
I/O Pins
34
36