PIC16F1946 Datasheet, PDF (68/440 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16F/LF1946/47
FIGURE 5-7:
INTERNAL OSCILLATOR SWITCH TIMING
HFINTOSC/ LFINTOSC (FSCM and WDT disabled)
MFINTOSC
HFINTOSC/
MFINTOSC
Start-up Time
2-cycle Sync
LFINTOSC
IRCF <3:0>
0
0
System Clock
HFINTOSC/ LFINTOSC (Either FSCM or WDT enabled)
MFINTOSC
HFINTOSC/
MFINTOSC
2-cycle Sync
LFINTOSC
IRCF <3:0>
0
0
System Clock
Running
Running
LFINTOSC HFINTOSC/MFINTOSC
LFINTOSC
HFINTOSC/
MFINTOSC
IRCF <3:0>
Start-up Time 2-cycle Sync
=0
0
System Clock
LFINTOSC turns off unless WDT or FSCM is enabled
Running
DS41414A-page 66
Preliminary
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