PIC18F6520-I Datasheet, PDF (40/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D

PIC18F6520/8520/6620/8620/6720/8720
FIGURE 3-6:
SLOW RISE TIME (MCLR TIED TO VDD VIA 1 kΩ RESISTOR)
5V
VDD
0V
MCLR
INTERNAL POR
TPWRT
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 1 kΩ RESISTOR)
VDD
MCLR
IINTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
TPWRT
TOST
TPLL
PLL TIME-OUT
INTERNAL RESET
Note: TOST = 1024 clock cycles.
TPLL ≈ 2 ms max. First three stages of the PWRT timer.
DS39609B-page 38
 2004 Microchip Technology Inc.