Datasheet

PIC16F630/676
DS40039E-page 6 © 2007 Microchip Technology Inc.
TABLE 1-1: PIC16F630/676 PINOUT DESCRIPTION
Name Function
Input
Type
Output
Type
Description
RA0/AN0/CIN+/ICSPDAT RA0 TTL CMOS Bi-directional 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 Bi-directional 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 Bi-directional 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 Bi-directional 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 Bi-directional 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 Bi-directional I/O
AN4 AN4 — A/D Channel 4 input
RC1/AN5 RC1 TTL CMOS Bi-directional I/O
AN5 AN5 — A/D Channel 5 input
RC2/AN6 RC2 TTL CMOS Bi-directional I/O
AN6 AN6 — A/D Channel 6 input
RC3/AN7 RC3 TTL CMOS Bi-directional I/O
AN7 AN7 — A/D Channel 7 input
RC4 RC4 TTL CMOS Bi-directional I/O
RC5 RC5 TTL CMOS Bi-directional 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