Datasheet

PIC16(L)F1516/7/8/9
DS41452C-page 54  2010-2012 Microchip Technology Inc.
FIGURE 5-7: INTERNAL OSCILLATOR SWITCH TIMING
HFINTOSC
LFINTOSC
IRCF <3:0>
System Clock
HFINTOSC
LFINTOSC
IRCF <3:0>
System Clock
0 0
0 0
Start-up Time
2-cycle Sync Running
2-cycle Sync Running
HFINTOSC LFINTOSC (FSCM and WDT disabled)
HFINTOSC LFINTOSC (Either FSCM or WDT enabled)
LFINTOSC
HFINTOSC
IRCF <3:0>
System Clock
= 0  0
Start-up Time 2-cycle Sync
Running
LFINTOSC HFINTOSC
LFINTOSC turns off unless WDT or FSCM is enabled