PIC18F4550-IP Datasheet, PDF(16/438 Page) Microchip Technology – 28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

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PIC18F4550-IP Datasheet, PDF (16/438 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

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PIC18F2455/2550/4455/4550

TABLE 1-2: PIC18F2455/2550 PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Name

Pin

Number Pin

PDIP, Type

SOIC

Buffer

Type

Description

PORTB is a bidirectional I/O port. PORTB can be software

programmed for internal weak pull-ups on all inputs.

RB0/AN12/INT0/FLT0/

SDI/SDA

RB0

AN12

INT0

FLT0

SDI

SDA

21

I/O TTL

I Analog

I

ST

I

ST

I

ST

I/O ST

Digital I/O.

Analog input 12.

External interrupt 0.

PWM Fault input (CCP1 module).

SPI data in.

I2Câ¢ data I/O.

RB1/AN10/INT1/SCK/

SCL

RB1

AN10

INT1

SCK

SCL

22

I/O TTL

I Analog

I

ST

I/O ST

I/O ST

Digital I/O.

Analog input 10.

External interrupt 1.

Synchronous serial clock input/output for SPI mode.

Synchronous serial clock input/output for I2C mode.

RB2/AN8/INT2/VMO

RB2

AN8

INT2

VMO

23

I/O TTL

Digital I/O.

I Analog Analog input 8.

I

ST

External interrupt 2.

O

â

External USB transceiver VMO output.

RB3/AN9/CCP2/VPO

RB3

AN9

CCP2(1)

VPO

24

I/O TTL

Digital I/O.

I Analog Analog input 9.

I/O ST

Capture 2 input/Compare 2 output/PWM2 output.

O

â

External USB transceiver VPO output.

RB4/AN11/KBI0

RB4

AN11

KBI0

25

I/O TTL

Digital I/O.

I Analog Analog input 11.

I

TTL

Interrupt-on-change pin.

RB5/KBI1/PGM

RB5

KBI1

PGM

26

I/O TTL

I

TTL

I/O ST

Digital I/O.

Interrupt-on-change pin.

Low-Voltage ICSPâ¢ Programming enable pin.

RB6/KBI2/PGC

RB6

KBI2

PGC

27

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

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

Note 1: Alternate assignment for CCP2 when CCP2MX Configuration bit is cleared.

2: Default assignment for CCP2 when CCP2MX Configuration bit is set.

DS39632E-page 14

Â© 2009 Microchip Technology Inc.

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