Datasheet

© 2007 Microchip Technology Inc. Preliminary DS39625C-page 19
PIC18F2585/2680/4585/4680
PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI
RC0
T1OSO
T13CKI
15 34 32
I/O
O
I
ST
—
ST
Digital I/O.
Timer1 oscillator output.
Timer1/Timer3 external clock input.
RC1/T1OSI
RC1
T1OSI
16 35 35
I/O
I
ST
CMOS
Digital I/O.
Timer1 oscillator input.
RC2/CCP1
RC2
CCP1
17 36 36
I/O
I/O
ST
ST
Digital I/O.
Capture1 input/Compare1 output/PWM1 output.
RC3/SCK/SCL
RC3
SCK
SCL
18 37 37
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/SDI/SDA
RC4
SDI
SDA
23 42 42
I/O
I
I/O
ST
ST
ST
Digital I/O.
SPI data in.
I
2
C data I/O.
RC5/SDO
RC5
SDO
24 43 43
I/O
O
ST
—
Digital I/O.
SPI data out.
RC6/TX/CK
RC6
TX
CK
25 44 44
I/O
O
I/O
ST
—
ST
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see related RX/DT).
RC7/RX/DT
RC7
RX
DT
26 1 1
I/O
I
I/O
ST
ST
ST
Digital I/O.
EUSART asynchronous receive.
EUSART synchronous data (see related TX/CK).
TABLE 1-3: PIC18F4585/4680 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
PDIP QFN TQFP
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels I = Input
O = Output P = Power