PIC16F866 View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

PIC16F866

Flash-Based, 8-Bit CMOS Microcontrollers

Microchip Technology 

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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>

2-cycle Sync

0

0

System Clock

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

DS41291G-page 72

 2006-2012 Microchip Technology Inc.

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