PIC16F882-I Datasheet, PDF (70/328 Pages) Microchip Technology – 28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers

PIC16F882/883/884/886/887
FIGURE 4-6:
INTERNAL OSCILLATOR SWITCH TIMING
HFINTOSC LFINTOSC (FSCM and WDT disabled)
HFINTOSC
LFINTOSC
Start-up Time
2-cycle Sync
IRCF <2:0>
≠0
=0
System Clock
HFINTOSC LFINTOSC (Either FSCM or WDT enabled)
HFINTOSC
LFINTOSC
IRCF <2:0>
System Clock
2-cycle Sync
≠0
=0
Running
Running
LFINTOSC HFINTOSC
LFINTOSC
HFINTOSC
Start-up Time 2-cycle Sync
IRCF <2:0>
=0
¼0
System Clock
LFINTOSC turns off unless WDT or FSCM is enabled
Running
DS41291F-page 68
© 2009 Microchip Technology Inc.