PIC18F44J50-I/SPSQTP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F44J50-I/SPSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

TABLE 1-3: PIC18F2XJ50 PINOUT I/O DESCRIPTIONS

Pin Name

Pin Number

28-SPDIP/

Pin Buffer

SSOP/ 28-QFN Type Type

SOIC

Description

MCLR

1

26

I

ST Master Clear (Reset) input. This pin is an

active-low Reset to the device.

OSC1/CLKI/RA7

OSC1

CLKI

RA7(1)

9

6

Oscillator crystal or external clock input.

I

ST

Oscillator crystal input or external clock source

input. ST buffer when configured in RC mode;

CMOS otherwise. Main oscillator input

connection.

I CMOS External clock source input; always associated

with pin function, OSC1 (see related

OSC1/CLKI pins).

I/O TTL

Digital I/O.

OSC2/CLKO/RA6

OSC2

CLKO

RA6(1)

10

7

Oscillator crystal or clock output.

O — Oscillator crystal output. Connects to crystal or

resonator in Crystal Oscillator mode.

O—

Main oscillator feedback output connection.

In RC mode, OSC2 pin outputs CLKO, which

has 1/4 the frequency of OSC1 and denotes

the instruction cycle rate.

I/O TTL

Digital I/O.

Legend:

TTL = TTL compatible input

ST = Schmitt Trigger input with CMOS levels

I = Input

P = Power

DIG = Digital output

CMOS

Analog

O

OD

I2C™

= CMOS compatible input or output

= Analog input

= Output

= Open-Drain (no P diode to VDD)

= Open-Drain, I2C-specific

Note 1: RA7 and RA6 will be disabled if OSC1 and OSC2 are used for the clock function.

DS39931D-page 16

 2011 Microchip Technology Inc.

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