PIC18F258 Datasheet, PDF (14/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
TABLE 1-2: PIC18FXX8 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
RB0/INT0
RB0
INT0
Pin Number
PIC18F248/258 PIC18F448/458
SPDIP, SOIC PDIP TQFP PLCC
Pin
Type
21
33
8
36
I/O
I
Buffer
Type
Description
PORTB is a bi-directional I/O port.
PORTB can be software
programmed for internal weak
pull-ups on all inputs.
TTL
Digital I/O.
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
PGD
28
40
17
44
I/O TTL
Digital I/O. In-Circuit
Debugger pin.
Interrupt-on-change pin.
I/O
ST
ICSP programming data.
Legend:
TTL =
ST =
I=
P=
TTL compatible input
Schmitt Trigger input with CMOS levels
Input
Power
CMOS =
Analog =
O
=
OD =
CMOS compatible input or output
Analog input
Output
Open Drain (no P diode to VDD)
DS41159B-page 12
Preliminary
 2002 Microchip Technology Inc.