PIC18FXX8 Datasheet, PDF (14/402 Pages) Microchip Technology – 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

PIC18FXX8
TABLE 1-2: PIC18FXX8 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
PIC18F248/258 PIC18F448/458
SPDIP, SOIC PDIP TQFP PLCC
Pin
Type
Buffer
Type
Description
RB0/INT0
RB0
INT0
PORTB is a bidirectional I/O port.
PORTB can be software
programmed for internal weak
pull-ups on all inputs.
21
33
8
36
I/O TTL
Digital I/O.
I
ST
External interrupt 0.
RB1/INT1
RB1
INT1
22
34
9
37
I/O TTL
Digital I/O.
I
ST
External interrupt 1.
RB2/CANTX/INT2
RB2
CANTX
INT2
23
35
10
38
I/O TTL
Digital I/O.
O
TTL
Transmit signal for CAN bus.
I
ST
External interrupt 2.
RB3/CANRX
RB3
CANRX
24
36
11
39
I/O TTL
Digital I/O.
I
TTL
Receive signal for CAN bus.
RB4
RB5/PGM
RB5
PGM
RB6/PGC
RB6
PGC
25
37
14
41 I/O TTL
Digital I/O.
Interrupt-on-change pin.
26
38
15
42
I/O TTL
Digital I/O.
Interrupt-on-change pin.
I
ST
Low-voltage ICSP™
programming enable.
27
39
16
43
I/O TTL
Digital I/O. In-Circuit
Debugger pin.
Interrupt-on-change pin.
I
ST
ICSP programming clock.
RB7/PGD
RB7
28
40
17
44
PGD
Legend:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
I/O TTL
I/O
ST
Digital I/O. In-Circuit
Debugger pin.
Interrupt-on-change pin.
ICSP programming data.
CMOS = CMOS compatible input or output
Analog = Analog input
O
= Output
OD = Open-Drain (no P diode to VDD)
DS41159D-page 12
 2004 Microchip Technology Inc.