PIC18F23K20_10 Datasheet, PDF (23/456 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC18F2XK20/4XK20
TABLE 1-3: PIC18F4XK20 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP QFN TQFP ^{Type Type}
Description
PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI 15 34 32
RC0
I/O ST
T1OSO
O
—
T13CKI
I
ST
Digital I/O
Timer1 oscillator output
Timer1/Timer3 external clock input
RC1/T1OSI/CCP2
RC1
T1OSI
CCP2⁽¹⁾
16 35 35
I/O ST
Digital I/O
I CMOS Timer1 oscillator input
I/O ST
Capture 2 input/Compare 2 output/PWM 2 output
RC2/CCP1/P1A
RC2
CCP1
P1A
17 36 36
I/O ST
I/O ST
O
—
Digital I/O
Capture 1 input/Compare 1 output/PWM 1 output
Enhanced CCP1 output
RC3/SCK/SCL
RC3
SCK
SCL
18 37 37
I/O ST
I/O ST
I/O ST
Digital I/O
Synchronous serial clock input/output for
SPI mode
Synchronous serial clock input/output for I²C™ mode
RC4/SDI/SDA
RC4
SDI
SDA
23 42 42
I/O ST
I
ST
I/O ST
Digital I/O
SPI data in
I²C™ data I/O
RC5/SDO
RC5
SDO
24 43 43
I/O ST
O
—
Digital I/O
SPI data out
RC6/TX/CK
RC6
TX
CK
25 44 44
I/O ST
O
—
I/O 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 ST
I
ST
I/O ST
Digital I/O
EUSART asynchronous receive
EUSART synchronous data (see related TX/CK)
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
CMOS = CMOS compatible input or output
I
= Input
P
= Power
Note 1: Default assignment for CCP2 when Configuration bit CCP2MX is set.
2: Alternate assignment for CCP2 when Configuration bit CCP2MX is cleared.
 2010 Microchip Technology Inc.
DS41303G-page 23