Datasheet

 2003 Microchip Technology Inc. DS30235J-page 107
PIC16C62X
FIGURE 12-14: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
FIGURE 12-15: BROWN-OUT RESET TIMING
TABLE 12-5: 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) 2000 — — ns -40° to +85°C
31 Twdt Watchdog Timer Time-out Period
(No Prescaler)
7* 18 33* ms V
DD = 5.0V, -40° to +85°C
32 Tost Oscillation Start-up Timer Period — 1024 T
OSC ——TOSC = OSC1 period
33 Tpwrt Power-up Timer Period 28* 72 132* ms V
DD = 5.0V, -40° to +85°C
34 T
IOZ I/O hi-impedance from MCLR low — 2.0 µs
35 T
BOR Brown-out Reset Pulse Width 100* — — µs3.7V ≤ VDD ≤ 4.3V
* These parameters are characterized but not tested.
† Data in "Typ" column is at 5.0V, 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
VDD
BVDD
35