PIC18F4580 Datasheet, PDF (16/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2480/2580/4480/4580
TABLE 1-2: PIC18F2480/2580 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
SPDIP,
SOIC
QFN
Type
Type
Description
PORTB is a bidirectional I/O port. PORTB can be software
programmed for internal weak pull-ups on all inputs.
RB0/INT0/ AN10
RB0
INT0
AN10
21 18
I/O TTL
Digital I/O.
I
ST
External interrupt 0.
I Analog Analog input 10.
RB1/INT1/AN8
RB1
INT1
AN8
22 19
I/O TTL
Digital I/O.
I
ST
External interrupt 1.
I Analog Analog input 8.
RB2/INT2/CANTX
RB2
INT2
CANTX
23 20
I/O TTL
I
ST
O TTL
Digital I/O.
External interrupt 2.
CAN bus TX.
RB3/CANRX
RB3
CANRX
24 21
I/O TTL
I
TTL
Digital I/O.
CAN bus RX.
RB4/KBI0/AN9
RB4
KBI0
AN9
25 22
I/O TTL
Digital I/O.
I
TTL
Interrupt-on-change pin.
I Analog Analog input 9.
RB5/KBI1/PGM
RB5
KBI1
PGM
26 23
I/O TTL
I
TTL
I/O ST
Digital I/O.
Interrupt-on-change pin.
Low-Voltage ICSP™ programming enable pin.
RB6/KBI2/PGC
RB6
KBI2
PGC
27 24
I/O TTL
I
TTL
I/O ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming clock pin.
RB7/KBI3/PGD
RB7
KBI3
PGD
28 25
I/O TTL
I
TTL
I/O ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming data pin.
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
CMOS = CMOS compatible input or output
I
= Input
P
= Power
DS39637A-page 14
Preliminary
 2004 Microchip Technology Inc.