Datasheet

© 2009 Microchip Technology Inc. DS39775C-page 25
PIC18F87J50 FAMILY
PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI
RC0
T1OSO
T13CKI
36
I/O
O
I
ST
—
ST
Digital I/O.
Timer1 oscillator output.
Timer1/Timer3 external clock input.
RC1/T1OSI/ECCP2/P2A
RC1
T1OSI
ECCP2
(2)
P2A
(2)
35
I/O
I
I/O
O
ST
CMOS
ST
—
Digital I/O.
Timer1 oscillator input.
Capture 2 input/Compare 2 output/PWM2 output.
ECCP2 PWM output A.
RC2/ECCP1/P1A
RC2
ECCP1
P1A
43
I/O
I/O
O
ST
ST
—
Digital I/O.
Capture 1 input/Compare 1 output/PWM1 output.
ECCP1 PWM output A.
RC3/SCK1/SCL1
RC3
SCK1
SCL1
44
I/O
I/O
I/O
ST
ST
ST
Digital I/O.
Synchronous serial clock input/output for SPI mode.
Synchronous serial clock input/output for I
2
C™ mode.
RC4/SDI1/SDA1
RC4
SDI1
SDA1
45
I/O
I
I/O
ST
ST
ST
Digital I/O.
SPI data in.
I
2
C data I/O.
RC5/SDO1/C2OUT
RC5
SDO1
C2OUT
46
I/O
O
O
ST
—
TTL
Digital I/O.
SPI data out.
Comparator 2 output.
RC6/TX1/CK1
RC6
TX1
CK1
37
I/O
O
I/O
ST
—
ST
Digital I/O.
EUSART1 asynchronous transmit.
EUSART1 synchronous clock (see related RX1/DT1).
RC7/RX1/DT1
RC7
RX1
DT1
38
I/O
I
I/O
ST
ST
ST
Digital I/O.
EUSART1 asynchronous receive.
EUSART1 synchronous data (see related TX1/CK1).
TABLE 1-4: PIC18F8XJ5X PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
80-TQFP
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels Analog = Analog input
I = Input O = Output
P = Power OD = Open-Drain (no P diode to V
DD)
Note 1: Alternate assignment for ECCP2/P2A when CCP2MX Configuration bit is cleared (Extended Microcontroller
mode).
2: Default assignment for ECCP2/P2A for all devices in all operating modes (CCP2MX is set).
3: Default assignments for P1B/P1C/P3B/P3C (ECCPMX Configuration bit is set).
4: Alternate assignment for ECCP2/P2A when CCP2MX is cleared (Microcontroller mode).
5: Alternate assignments for P1B/P1C/P3B/P3C (ECCPMX Configuration bit is cleared).
6: Pin placement when PMPMX = 1.
7: Pin placement when PMPMX = 0.
8: RA7 and RA6 will be disabled if OSC1 and OSC2 are used for the clock function.