Datasheet

PIC18F6390/6490/8390/8490
DS39629C-page 22 © 2007 Microchip Technology Inc.
PORTB is a bidirectional I/O port. PORTB can be software
programmed for internal weak pull-ups on all inputs.
RB0/INT0
RB0
INT0
58
I/O
I
TTL
ST
Digital I/O.
External interrupt 0.
RB1/INT1/SEG8
RB1
INT1
SEG8
57
I/O
I
O
TTL
ST
Analog
Digital I/O.
External interrupt 1.
SEG8 output for LCD.
RB2/INT2/SEG9
RB2
INT2
SEG9
56
I/O
I
O
TTL
ST
Analog
Digital I/O.
External interrupt 2.
SEG9 output for LCD.
RB3/INT3/SEG10
RB3
INT3
SEG10
55
I/O
I
O
TTL
ST
Analog
Digital I/O.
External interrupt 3.
SEG10 output for LCD.
RB4/KBI0/SEG11
RB4
KBI0
SEG11
54
I/O
I
O
TTL
TTL
Analog
Digital I/O.
Interrupt-on-change pin.
SEG11 output for LCD.
RB5/KBI1
RB5
KBI1
53
I/O
I
TTL
TTL
Digital I/O.
Interrupt-on-change 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 1-3: PIC18F8X90 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 OD = Open-Drain (no P diode to V
DD)
Note 1: Default assignment for CCP2 when Configuration bit, CCP2MX, is set.
2: Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.