Datasheet

© 2008 Microchip Technology Inc. DS39646C-page 23
PIC18F8722 FAMILY
PORTB is a bidirectional I/O port. PORTB can be software
programmed for internal weak pull-ups on all inputs.
RB0/INT0/FLT0
RB0
INT0
FLT0
58
I/O
I
I
TTL
ST
ST
Digital I/O.
External interrupt 0.
PWM Fault input for ECCPx.
RB1/INT1
RB1
INT1
57
I/O
I
TTL
ST
Digital I/O.
External interrupt 1.
RB2/INT2
RB2
INT2
56
I/O
I
TTL
ST
Digital I/O.
External interrupt 2.
RB3/INT3/ECCP2/P2A
RB3
INT3
ECCP2
(1)
P2A
(1)
55
I/O
I
O
O
TTL
ST
—
—
Digital I/O.
External interrupt 3.
Enhanced Capture 2 input/Compare 2 output/
PWM 2 output.
ECCP2 PWM output A.
RB4/KBI0
RB4
KBI0
54
I/O
I
TTL
TTL
Digital I/O.
Interrupt-on-change pin.
RB5/KBI1/PGM
RB5
KBI1
PGM
53
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
Low-Voltage ICSP™ Programming enable pin.
RB6/KBI2/PGC
RB6
KBI2
PGC
52
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP™ programming clock pin.
RB7/KBI3/PGD
RB7
KBI3
PGD
47
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming data pin.
TABLE 1-4: PIC18F8527/8622/8627/8722 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
TQFP
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels Analog= Analog input
I = Input O = Output
P= Power I
2
C™/SMB = I
2
C/SMBus input buffer
Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except
Microcontroller mode).
2: Default assignment for ECCP2 in all operating modes (CCP2MX is set).
3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only).
4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set).
5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).