PIC18F2525_08 Datasheet, PDF (20/412 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2525/2620/4525/4620
TABLE 1-3: PIC18F4525/4620 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP QFN TQFP ^{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/FLT0/AN12 33 9
RB0
INT0
FLT0
AN12
8
I/O TTL Digital I/O.
I
ST
External interrupt 0.
I
ST
PWM Fault input for Enhanced CCP1.
I Analog Analog input 12.
RB1/INT1/AN10
RB1
INT1
AN10
34 10
9
I/O TTL Digital I/O.
I
ST
External interrupt 1.
I Analog Analog input 10.
RB2/INT2/AN8
RB2
INT2
AN8
35 11 10
I/O TTL Digital I/O.
I
ST
External interrupt 2.
I Analog Analog input 8.
RB3/AN9/CCP2
RB3
AN9
CCP2⁽¹⁾
36 12 11
I/O TTL Digital I/O.
I Analog Analog input 9.
I/O ST
Capture 2 input/Compare 2 output/PWM2 output.
RB4/KBI0/AN11
RB4
KBI0
AN11
37 14 14
I/O TTL Digital I/O.
I TTL Interrupt-on-change pin.
I Analog Analog input 11.
RB5/KBI1/PGM
RB5
KBI1
PGM
38 15 15
I/O TTL Digital I/O.
I TTL Interrupt-on-change pin.
I/O ST
Low-Voltage ICSP™ Programming enable pin.
RB6/KBI2/PGC
RB6
KBI2
PGC
39 16 16
I/O TTL Digital I/O.
I TTL Interrupt-on-change pin.
I/O ST
In-Circuit Debugger and ICSP programming
clock pin.
RB7/KBI3/PGD
RB7
KBI3
PGD
40 17 17
I/O TTL Digital I/O.
I TTL Interrupt-on-change pin.
I/O ST
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
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 VSS.
DS39626E-page 18
© 2008 Microchip Technology Inc.