PIC18LF4523T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4523T-I/SO

28/40/44-Pin, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2423/2523/4423/4523

TABLE 1-2: PIC18F2423/2523 PINOUT I/O DESCRIPTIONS

Pin Name

Pin Number

Pin Buffer

PDIP,

SOIC

QFN

Type

Type

Description

MCLR/VPP/RE3

MCLR

VPP

RE3

1 26

Master Clear (input) or programming voltage (input).

I ST

Master Clear (Reset) input. This pin is an active-low

Reset to the device.

P

Programming voltage input.

I ST

Digital input.

OSC1/CLKI/RA7

OSC1

CLKI

RA7

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.

I CMOS External clock source input. Always associated with pin

function, OSC1. (See related OSC1/CLKI, OSC2/CLKO

pins.)

I/O TTL

General purpose I/O pin.

OSC2/CLKO/RA6

OSC2

CLKO

RA6

10 7

Oscillator crystal or clock output.

O—

Oscillator crystal output. Connects to crystal or

resonator in Crystal Oscillator mode.

O—

In RC mode, OSC2 pin outputs CLKO, which has 1/4 the

frequency of OSC1 and denotes the instruction cycle rate.

I/O TTL General purpose I/O pin.

Legend:

TTL =

ST =

O=

I2C =

TTL compatible input

Schmitt Trigger input with CMOS levels

Output

I2C™/SMBus

CMOS = CMOS compatible input or output

I

= Input

P

= Power

Note 1: Default assignment for CCP2 when Configuration bit, CCP2MX, is set.

2: Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.

DS39755C-page 14

© 2009 Microchip Technology Inc.

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