PIC16F631_08 Datasheet, PDF (246/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
FIGURE 17-6:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND
POWER-UP TIMER TIMING
VDD
MCLR
Internal
POR
PWRT
Time-out
OSC
Start-up Time
Internal Reset⁽¹⁾
Watchdog Timer
Reset⁽¹⁾
33
32
I/O pins
Note 1: Asserted low.
30
31
34
34
FIGURE 17-7:
BROWN-OUT RESET TIMING AND CHARACTERISTICS
VDD
VBOR
VBOR + VHYST
(Device in Brown-out Reset)
(Device not in Brown-out Reset)
37
Reset
(due to BOR)
33*
* 64 ms delay only if PWRTE bit in the Configuration Word register is programmed to ‘0’.
DS41262E-page 244
© 2008 Microchip Technology Inc.