Datasheet

PIC18F2525/2620/4525/4620
DS39626E-page 18 © 2008 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/FLT0/AN12
RB0
INT0
FLT0
AN12
33 9 8
I/O
I
I
I
TTL
ST
ST
Analog
Digital I/O.
External interrupt 0.
PWM Fault input for Enhanced CCP1.
Analog input 12.
RB1/INT1/AN10
RB1
INT1
AN10
34 10 9
I/O
I
I
TTL
ST
Analog
Digital I/O.
External interrupt 1.
Analog input 10.
RB2/INT2/AN8
RB2
INT2
AN8
35 11 10
I/O
I
I
TTL
ST
Analog
Digital I/O.
External interrupt 2.
Analog input 8.
RB3/AN9/CCP2
RB3
AN9
CCP2
(1)
36 12 11
I/O
I
I/O
TTL
Analog
ST
Digital I/O.
Analog input 9.
Capture 2 input/Compare 2 output/PWM2 output.
RB4/KBI0/AN11
RB4
KBI0
AN11
37 14 14
I/O
I
I
TTL
TTL
Analog
Digital I/O.
Interrupt-on-change pin.
Analog input 11.
RB5/KBI1/PGM
RB5
KBI1
PGM
38 15 15
I/O
I
I/O
TTL
TTL
ST
Digital I/O.
Interrupt-on-change pin.
Low-Voltage ICSP™ Programming enable pin.
RB6/KBI2/PGC
RB6
KBI2
PGC
39 16 16
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
40 17 17
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: PIC18F4525/4620 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
PDIP QFN TQFP
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels I = Input
O = Output P = Power
Note 1: Default assignment for CCP2 when the CCP2MX Configuration bit is set.
2: Alternate assignment for CCP2 when the CCP2MX Configuration bit is cleared.
3: For the QFN package, it is recommended that the bottom pad be connected to V
SS.