PIC12F1840 View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

PIC12F1840

8-Pin Flash Microcontrollers with XLP Technology

Microchip Technology 

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PIC12(L)F1840

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

DS41441C-page 48

 2011-2012 Microchip Technology Inc.

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