PIC18F258 Datasheet, PDF (31/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
FIGURE 3-6:
SLOW RISE TIME (MCLR TIED TO VDD VIA RC NETWORK)
5V
VDD
0V
1V
MCLR
INTERNAL POR
TPWRT
TDEADTIME
PWRT TIME-OUT
TOST
OST TIME-OUT
INTERNAL RESET
FIGURE 3-7:
TIME-OUT SEQUENCE ON POR W/ PLL ENABLED (MCLR TIED TO VDD
VIA RC NETWORK)
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
TPWRT
OST TIME-OUT
PLL TIME-OUT
INTERNAL RESET
TOST = 1024 clock cycles.
TPLL ≈ 2 ms max. First three stages of the PWRT timer.
TOST
TPLL
 2002 Microchip Technology Inc.
Preliminary
DS41159B-page 29