Datasheet

 2011 Microchip Technology Inc. Preliminary DS41607A-page 49
PIC16(L)F1503
FIGURE 5-3: 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 (WDT disabled)
HFINTOSC LFINTOSC (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 is enabled