Datasheet

 1999-2013 Microchip Technology Inc. DS41106C-page 83
PIC16C712/716
FIGURE 12-6: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
FIGURE 12-7: BROWN-OUT RESET TIMING
TABLE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,
AND BROWN-OUT RESET REQUIREMENTS
Parameter
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
30 TmcL MCLR
Pulse Width (low) 2 — —
s VDD = 5V, -40°C to +125°C
31* T
WDT Watchdog Timer Time-out Period
(No Prescaler)
71833ms
VDD = 5V, -40°C to +125°C
32 T
OST Oscillation Start-up Timer Period — 1024 TOSC ——
TOSC = OSC1 period
33* T
PWRT Power-up Timer Period 28 72 132 ms
VDD = 5V, -40°C to +125°C
34 T
IOZ I/O High-impedance from MCLR
Low or WDT Reset
——2.1
s
35 T
BOR Brown-out Reset Pulse Width 100 — —
s
V
DD  BVDD (D005)
* 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
Time-out
OSC
Time-out
Internal
Reset
Watchdog
Timer
Reset
33
32
30
31
34
I/O Pins
34
Note: Refer to Figure 12-3 for load conditions.
VDD
BVDD
35