PIC18(L)F2X/4XK22
DS41412F-page 24
2010-2012 Microchip Technology Inc.
18
37
33
RC3/SCK1/SCL1/AN15
RC3
I/O
ST
Digital I/O.
SCK1
I/O
ST
Synchronous serial clock input/output for SPI
mode (MSSP).
SCL1
I/O
ST
Synchronous serial clock input/output for I2C
mode (MSSP).
AN15
I
Analog Analog input 15.
23
42
38
RC4/SDI1/SDA1/AN16
RC4
I/O
ST
Digital I/O.
SDI1
I
ST
SPI data in (MSSP).
SDA1
I/O
ST
I2C data I/O (MSSP).
AN16
I
Analog Analog input 16.
24
43
39
RC5/SDO1/AN17
RC5
I/O
ST
Digital I/O.
SDO1
O
—
SPI data out (MSSP).
AN17
I
Analog Analog input 17.
25
44
40
RC6/TX1/CK1/AN18
RC6
I/O
ST
Digital I/O.
TX1
O
—
EUSART asynchronous transmit.
CK1
I/O
ST
EUSART synchronous clock (see related RXx/
DTx).
AN18
I
Analog Analog input 18.
26
1
RC7/RX1/DT1/AN19
RC7
I/O
ST
Digital I/O.
RX1
I
ST
EUSART asynchronous receive.
DT1
I/O
ST
EUSART synchronous data (see related TXx/
CKx).
AN19
I
Analog Analog input 19.
19
38
34
RD0/SCK2/SCL2/AN20
RD0
I/O
ST
Digital I/O.
SCK2
I/O
ST
Synchronous serial clock input/output for SPI
mode (MSSP).
SCL2
I/O
ST
Synchronous serial clock input/output for I2C
mode (MSSP).
AN20
I
Analog Analog input 20.
20
39
35
RD1/CCP4/SDI2/SDA2/AN21
RD1
I/O
ST
Digital I/O.
CCP4
I/O
ST
Capture 4 input/Compare 4 output/PWM 4 output.
SDI2
I
ST
SPI data in (MSSP).
SDA2
I/O
ST
I2C data I/O (MSSP).
AN21
I
Analog Analog input 21.
TABLE 1-3:
PIC18(L)F4XK22 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number
Pin Name
Pin
Type
Buffer
Type
Description
PDIP
TQFP
QFN
UQFN
Legend:
TTL = TTL compatible input CMOS = CMOS compatible input or output; ST = Schmitt Trigger input with CMOS levels;
I = Input; O = Output; P = Power.
Note
1:
Default pin assignment for P2B, T3CKI, CCP3/P3A and CCP2/P2A when Configuration bits PB2MX, T3CMX, CCP3MX
and CCP2MX are set.
2:
Alternate pin assignment for P2B, T3CKI, CCP3/P3A and CCP2/P2A when Configuration bits PB2MX, T3CMX,
CCP3MX and CCP2MX are clear.