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 10-13: BLOCK DIAGRAM OF RB6/PGC/T1OSO/T13CKI/P1C/KBI2 PIN

ECCP1 P1C/D Enable

RBPU(2)

P1B/D Tri-State Auto-Shutdown

P1C Data

VDD

P

Weak

Pull-up

1

0

RD LATB

Data Bus

WR LATB or

PORTB

D

Q

CK Q

Data Latch

WR TRISB

D

Q

CK Q

TRIS Latch

T1OSCEN

RD TRISB

Set RBIF

RD PORTB

From other

RB7:RB4 pins

PGC

TTL

Buffer

Q

D

EN

Schmitt

Trigger

Q1

QD

RD PORTB

EN

Q3

T13CKI

Note 1: I/O pins have diode protection to VDD and VSS.

2: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (INTCON2<7>).

RB6 pin

Timer1

Oscillator

From RB7 pin

DS39605F-page 96

© 2007 Microchip Technology Inc.

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