Datasheet

 2011-2015 Microchip Technology Inc. DS40001615C-page 47
PIC12(L)F1501
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
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
2-cycle Sync
Running
LFINTOSC HFINTOSC
LFINTOSC turns off unless WDT is enabled
(2)
Note 1: See Tab le 5-2, “Oscillator Switching Delays” for more information.
2: LFINTOSC will continue to run if a peripheral has selected it as the clock source. See
Section 5.2.2.4 “Peripheral Clock Sources”.
Oscillator Delay
(1)
Oscillator Delay
(1)