PIC16F87 Datasheet, PDF (139/214 Pages) Microchip Technology – 18/20/28-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology

PIC16F87/88
FIGURE 15-3:
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD THROUGH
PULL-UP RESISTOR)
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
TPWRT
TOST
FIGURE 15-4:
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD THROUGH
RC NETWORK): CASE 1
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
TPWRT
TOST
FIGURE 15-5:
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD THROUGH
RC NETWORK): CASE 2
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
TPWRT
TOST
 2003 Microchip Technology Inc.
Preliminary
DS30487B-page 137