PIC18F1220 View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

PIC18F1220

18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

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PIC18F1220/1320

FIGURE 4-6:

SLOW RISE TIME (MCLR TIED TO VDD, VDD RISE > TPWRT)

5V

VDD

0V

1V

MCLR

INTERNAL POR

TPWRT

PWRT TIME-OUT

TOST

OST TIME-OUT

INTERNAL RESET

FIGURE 4-7:

TIME-OUT SEQUENCE ON POR W/PLL ENABLED (MCLR TIED TO VDD)

VDD

MCLR

INTERNAL POR

PWRT TIME-OUT

OST TIME-OUT

TPWRT

TOST

TPLL

PLL TIME-OUT

INTERNAL RESET

Note:

TOST = 1024 clock cycles.

TPLL ≈ 2 ms max. First three stages of the PWRT timer.

DS39605F-page 40

© 2007 Microchip Technology Inc.

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