
2000 Microchip Technology Inc.
Preliminary
DS41124C-page 11
PIC16C745/765
TABLE 3-1:
PIC16C745/765 PINOUT DESCRIPTION
Name
Function
Input
Type
Output
Type
Description
MCLR/VPP
MCLR
ST
—
Master Clear
VPP
Power
—
Programming Voltage
OSC1/CLKIN
OSC1
Xtal
—
Crystal/Resonator
CLKIN
ST
—
External Clock Input
OSC2/CLKOUT
OSC2
—
Xtal
Crystal/Resonator
CLKOUT
—
CMOS
Internal Clock (FINT/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/VREF
RA3
ST
CMOS
Bi-directional I/O
AN3
AN
—
A/D Input
VREF
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
TTL
CMOS
Bi-directional I/O(1)
RB2
TTL
CMOS
Bi-directional I/O(1)
RB3
TTL
CMOS
Bi-directional I/O(1)
RB4
TTL
CMOS
Bi-directional I/O with Interrupt-on-Change(1)
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
VUSB
Power
Regulator Output Voltage
D-
USB
USB Differential Bus
D+
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.
745cov.book Page 11 Wednesday, August 2, 2000 8:24 AM