PIC18F2480/2580/4480/4580
TABLE 1-3:
Pin Name
PIC18F4480/4580 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number
Pin Buffer
Type Type
Description
PDIP QFN TQFP
PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI
RC0
15
34
32
I/O
O
I
ST
—
ST
Digital I/O.
Timer1 oscillator output.
Timer1/Timer3 external clock input.
T1OSO
T13CKI
RC1/T1OSI
RC1
16
17
18
35
36
37
35
36
37
I/O
I
ST
CMOS
Digital I/O.
Timer1 oscillator input.
T1OSI
RC2/CCP1
RC2
I/O
I/O
ST
ST
Digital I/O.
CCP1
Capture 1 input/Compare 1 output/PWM1 output.
RC3/SCK/SCL
RC3
I/O
I/O
ST
ST
Digital I/O.
Synchronous serial clock input/output for
SPI mode.
SCK
SCL
I/O
I2C
Synchronous serial clock input/output for
I2C™ mode.
RC4/SDI/SDA
RC4
23
42
42
I/O
I
I/O
ST
ST
I2C
Digital I/O.
SPI data in.
I2C data I/O.
SDI
SDA
RC5/SDO
RC5
24
25
43
44
43
44
I/O
O
ST
—
Digital I/O.
SPI data out.
SDO
RC6/TX/CK
RC6
TX
CK
I/O
O
I/O
ST
—
ST
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see related RX/DT).
RC7/RX/DT
RC7
26
1
1
I/O
I
I/O
ST
ST
ST
Digital I/O.
RX
DT
EUSART asynchronous receive.
EUSART synchronous data (see related TX/CK).
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
= Output
I2C = I2C™/SMBus input buffer
CMOS = CMOS compatible input or output
I
= Input
O
P
= Power
© 2009 Microchip Technology Inc.
DS39637D-page 21
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