Datasheet

PIC18F66K80 FAMILY
DS39977F-page 28  2010-2012 Microchip Technology Inc.
PORTC is a bidirectional I/O port.
RC0/SOSCO/SCLKI 15 32
RC0 I/O ST/
CMOS
Digital I/O.
SOSCO I ST SOSC oscillator output.
SCLKI I ST Digital SOSC input.
RC1/SOSCI 16 35
RC1 I/O ST/
CMOS
Digital I/O.
SOSCI I CMOS SOSC oscillator input.
RC2/T1G/CCP2 17 36
RC2 I/O ST/
CMOS
Digital I/O.
T1G I ST Timer1 external clock gate input.
CCP2 I/O ST/
CMOS
Capture 2 input/Compare 2 output/PWM2 output.
RC3/REFO/SCL/SCK 18 37
RC3 I/O ST/
CMOS
Digital I/O.
REFO O CMOS Reference clock out.
SCL I/O I
2
C Synchronous serial clock input/output for I
2
C mode.
SCK I/O ST Synchronous serial clock input/output for SPI mode.
RC4/SDA/SDI 23 42
RC4 I/O ST/
CMOS
Digital I/O.
SDA I/O I
2
CI
2
C data input/output.
SDI I ST SPI data in.
RC5/SDO 24 43
RC5 I/O ST/
CMOS
Digital I/O.
SDO O CMOS SPI data out.
RC6/CANTX/TX1/CK1/
CCP3
25 44
RC6 I/O ST/
CMOS
Digital I/O.
CANTX O CMOS CAN bus TX.
TX1 O CMOS EUSART synchronous transmit.
CK1 I/O ST EUSART synchronous clock. (See related RX2/DT2.)
CCP3 I/O ST Capture 3 input/Compare 3 output/PWM3 output.
TABLE 1-5: PIC18F4XK80 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
PDIP
QFN/
TQFP
Legend: I
2
C™ = I
2
C/SMBus input buffer CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels Analog = Analog input
I = Input O = Output
P= Power