
PIC18F66K80 FAMILY
DS39977F-page 20
2010-2012 Microchip Technology Inc.
PORTB is a bidirectional I/O port.
RB0/AN10/C1INA/FLT0/
INT0
18
21
RB0
I/O
ST/
CMOS
Digital I/O.
AN10
I
Analog Analog Input 10.
C1INA
I
Analog Comparator 1 Input A.
FLT0
I
ST
Enhanced PWM Fault input for ECCP1.
INT0
I
ST
External Interrupt 0.
RB1/AN8/C1INB/P1B/
CTDIN/INT1
19
22
RB1
I/O
ST/
CMOS
Digital I/O.
AN8
I
Analog Analog Input 8.
C1INB
I
Analog Comparator 1 Input B.
P1B
O
CMOS Enhanced PWM1 Output B.
CTDIN
I
ST
CTMU pulse delay input.
INT1
I
ST
External Interrupt 1.
RB2/CANTX/C1OUT/
P1C/CTED1/INT2
20
23
RB2
I/O
ST/
CMOS
Digital I/O.
CANTX
O
CMOS CAN bus TX.
C1OUT
O
CMOS Comparator 1 output.
P1C
O
CMOS Enhanced PWM1 Output C.
CTED1
I
ST
CTMU Edge 1 input.
INT2
I
ST
External Interrupt 2.
RB3/CANRX/C2OUT/
P1D/CTED2/INT3
21
24
RB3
I/O
ST/
CMOS
Digital I/O.
CANRX
I
ST
CAN bus RX.
C2OUT
O
CMOS Comparator 2 output.
P1D
O
CMOS Enhanced PWM1 Output D.
CTED2
I
ST
CTMU Edge 2 input.
INT3
I
ST
External Interrupt 3.
TABLE 1-4:
PIC18F2XK80 I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
QFN
SSOP/
SPDIP
/SOIC
Legend:
CMOS = CMOS compatible input or output
I2C
= I2C/SMBus input buffer
ST
= Schmitt Trigger input with CMOS levels
Analog = Analog input
I
= Input
O
= Output
P= Power