Information

© 2005 Microchip Technology Inc. DS80122K-page 9
PIC18FXX2
PORTB is a bidirectional I/O port. PORTB can be
software programmed for internal weak pull-ups on
all inputs.
RB0/INT0
RB0
INT0
33 36 9 8
I/O
I
TTL
ST
Digital I/O.
External Interrupt 0.
RB1/INT1
RB1
INT1
34 37 10 9
I/O
I
TTL
ST
Digital I/O.
External Interrupt 1.
RB2/INT2
RB2
INT2
35 38 11 10
I/O
I
TTL
ST
Digital I/O.
External Interrupt 2.
RB3/CCP2
RB3
CCP2
36 39 12 11
I/O
I/O
TTL
ST
Digital I/O.
Capture2 input, Compare2 output, PWM2 output.
RB4 37 41 14 14 I/O TTL Digital I/O. Interrupt-on-change pin.
RB5/PGM
RB5
PGM
38 42 15 15
I/O
I/O
TTL
ST
Digital I/O. Interrupt-on-change pin.
Low-Voltage ICSP™ Programming enable pin.
RB6/PGC
RB6
PGC
39 43 16 16
I/O
I/O
TTL
ST
Digital I/O. Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming
clock pin.
RB7/PGD
RB7
PGD
40 44 17 17
I/O
I/O
TTL
ST
Digital I/O. Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming data
pin.
TABLE 1-3: PIC18F4X2 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
DIP PLCC 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
OD = Open-Drain (no P diode to VDD)