Datasheet

 1999-2013 Microchip Technology Inc. Preliminary DS41124D-page 11
PIC16C745/765
TABLE 3-1: PIC16C745/765 PINOUT DESCRIPTION
Name Function
Input
Type
Output
Type
Description
MCLR
/VPP
MCLR ST — Master Clear
V
PP Power — Programming Voltage
OSC1/CLKIN
OSC1 Xtal — Crystal/Resonator
CLKIN ST — External Clock Input
OSC2/CLKOUT
OSC2 — Xtal Crystal/Resonator
CLKOUT — CMOS Internal Clock (F
INT/4) Output
RA0/AN0
RA0 ST CMOS Bi-directional I/O
AN0 AN — A/D Input
RA1/AN1
RA1 ST CMOS Bi-directional I/O
AN1 AN — A/D Input
RA2/AN2
RA2 ST CMOS Bi-directional I/O
AN2 AN — A/D Input
RA3/AN3/V
REF
RA3 ST CMOS Bi-directional I/O
AN3 AN — A/D Input
V
REF AN — A/D Positive Reference
RA4/T0CKI
RA4 ST OD Bi-directional I/O
T0CKI ST — Timer 0 Clock Input
RA5/AN4
RA5 ST Bi-directional I/O
AN4 AN — A/D Input
RB0/INT
RB0 TTL CMOS Bi-directional I/O
(1)
INT ST — Interrupt
RB1 RB1 TTL CMOS Bi-directional I/O
(1)
RB2 RB2 TTL CMOS Bi-directional I/O
(1)
RB3 RB3 TTL CMOS Bi-directional I/O
(1)
RB4 RB4 TTL CMOS Bi-directional I/O with Interrupt-on-Change
(1)
RB5 RB5 TTL CMOS Bi-directional I/O with Interrupt-on-Change
(1)
RB6/ICSPC
RB6 TTL CMOS Bi-directional I/O with Interrupt-on-Change
(1)
ICSPC ST In-Circuit Serial Programming Clock Input
RB7/ICSPD
RB7 TTL CMOS Bi-directional I/O with Interrupt-on-Change
(1)
ICSPD ST CMOS In-Circuit Serial Programming Data I/O
RC0/T1OSO/T1CKI
RC0 ST CMOS Bi-directional I/O
T1OSO — Xtal T1 Oscillator Output
T1CKI ST — T1 Clock Input
RC1/T1OSI/CCP2
(1)
RC1 ST CMOS Bi-directional I/O
T1OSI Xtal — T1 Oscillator Input
CCP2 Capture In/Compare Out/PWM Out 2
RC2/CCP1
RC2 ST CMOS Bi-directional I/O
CCP1 Capture In/Compare Out/PWM Out 1
V
USB VUSB Power Regulator Output Voltage
D- D- USB USB USB Differential Bus
D+ D+ USB USB USB Differential Bus
Legend: OD = open drain, ST = Schmitt Trigger
Note 1: Weak pull-ups. PORT B pull-ups are byte wide programmable.
2: PIC16C765 only.