PIC18F2220/2320/4220/4320
TABLE 1-3:
Pin Name
PIC18F4220/4320 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number
Pin Buffer
Type Type
Description
PDIP TQFP QFN
PORTB is a bidirectional I/O port. PORTB can be software
programmed for internal weak pull-ups on all inputs.
RB0/AN12/INT0
RB0
33
34
35
36
37
38
39
40
8
9
I/O
I
I
TTL
Analog
ST
Digital I/O.
Analog input 12.
External interrupt 0.
AN12
INT0
RB1/AN10/INT1
RB1
9
10
11
12
14
15
16
17
I/O
I
I
TTL
Analog
ST
Digital I/O.
Analog input 10.
External interrupt 1.
AN10
INT1
RB2/AN8/INT2
RB2
10
11
14
15
16
17
I/O
I
I
TTL
Analog
ST
Digital I/O.
Analog input 8.
External interrupt 2.
AN8
INT2
RB3/AN9/CCP2
RB3
I/O
I
I/O
TTL
Analog
ST
Digital I/O.
Analog input 9.
Capture2 input, Compare2 output, PWM2 output.
AN9
CCP2(1)
RB4/AN11/KBI0
RB4
I/O
I
I
TTL
Analog
TTL
Digital I/O.
Analog input 11.
Interrupt-on-change pin.
AN11
KBI0
RB5/KBI1/PGM
RB5
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
KBI1
PGM
Interrupt-on-change pin.
Low-voltage ICSP programming enable pin.
RB6/KBI2/PGC
RB6
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming clock pin.
KBI2
PGC
RB7/KBI3/PGD
RB7
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming data pin.
KBI3
PGD
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
= Output
OD = Open-drain (no diode to VDD)
CMOS = CMOS compatible input or output
I
= Input
O
P
= Power
Note 1: Default assignment for CCP2 when CCP2MX (CONFIG3H<0>) is set.
2: Alternate assignment for CCP2 when CCP2MX is cleared.
2003 Microchip Technology Inc.
DS39599C-page 15
MICROCHIP [ MICROCHIP ]
