Datasheet

PIC16F630/676
DS40039F-page 8  2010 Microchip Technology Inc.
TABLE 1-1: PIC16F630/676 PINOUT DESCRIPTION
Name Function
Input
Type
Output
Type
Description
RA0/AN0/CIN+/ICSPDAT RA0 TTL CMOS Bidirectional I/O w/ programmable pull-up and
interrupt-on-change.
AN0 AN — A/D Channel 0 input.
CIN+ AN Comparator input.
ICSPDAT TTL CMOS Serial Programming Data I/O.
RA1/AN1/CIN-/VREF/
ICSPCLK
RA1 TTL CMOS Bidirectional I/O w/ programmable pull-up and
interrupt-on-change.
AN1 AN — A/D Channel 1 input.
CIN- AN — Comparator input.
VREF AN — External Voltage reference.
ICSPCLK ST — Serial Programming Clock.
RA2/AN2/COUT/T0CKI/INT RA2 ST CMOS Bidirectional I/O w/ programmable pull-up and
interrupt-on-change.
AN2 AN — A/D Channel 2 input.
COUT — CMOS Comparator output.
T0CKI ST — Timer0 clock input.
INT ST — External Interrupt.
RA3/MCLR
/VPP RA3 TTL — Input port with interrupt-on-change.
MCLR
ST — Master Clear.
V
PP HV — Programming voltage.
RA4/T1G
/AN3/OSC2/
CLKOUT
RA4 TTL CMOS Bidirectional I/O w/ programmable pull-up and
interrupt-on-change.
T1G
ST — Timer1 gate.
AN3 AN3 — A/D Channel 3 input.
OSC2 — XTAL Crystal/Resonator.
CLKOUT — CMOS F
OSC/4 output.
RA5/T1CKI/OSC1/CLKIN
RA5 TTL CMOS Bidirectional I/O w/ programmable pull-up and
interrupt-on-change.
T1CKI ST — Timer1 clock.
OSC1 XTAL — Crystal/Resonator.
CLKIN ST — External clock input/RC oscillator connection.
RC0/AN4 RC0 TTL CMOS Bidirectional I/O.
AN4 AN4 — A/D Channel 4 input.
RC1/AN5 RC1 TTL CMOS Bidirectional I/O.
AN5 AN5 — A/D Channel 5 input.
RC2/AN6 RC2 TTL CMOS Bidirectional I/O.
AN6 AN6 — A/D Channel 6 input.
RC3/AN7 RC3 TTL CMOS Bidirectional I/O.
AN7 AN7 — A/D Channel 7 input.
RC4 RC4 TTL CMOS Bidirectional I/O.
RC5 RC5 TTL CMOS Bidirectional I/O.
V
SS VSS Power — Ground reference.
VDD VDD Power — Positive supply.
Legend: Shade = PIC16F676 only
TTL = TTL input buffer
ST = Schmitt Trigger input buffer