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Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller PDIP 40 8-Bit 40 MHz I/O number 36
341342343344345346347348349350
2010 Microchip Technology Inc. DS39616D-page 349
PIC18F2331/2431/4331/4431
FIGURE 26-7: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
FIGURE 26-8: BROWN-OUT RESET TIMING
VDD
MCLR
Internal
POR
PWRT
Time-out
Oscillator
Time-out
Internal
Reset
Watchdog
Timer Reset
33
32
30
31
34
I/O Pins
34
VDD
BVDD
35
VBGAP = 1.2V
V
IRVST
Enable Internal
Internal Reference
36
Reference Voltage
Voltage Stable
(nominal)