PIC18F2480 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F2480

28/40/44-Pin Enhanced Flash Microcontrollers with ECAN™ Technology, 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2480/2580/4480/4580

TABLE 1-2: PIC18F2480/2580 PINOUT I/O DESCRIPTIONS

Pin Name

Pin Number

Pin Buffer

SPDIP,

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 = TTL compatible input

ST = Schmitt Trigger input with CMOS levels

O = Output

CMOS = CMOS compatible input or output

I

= Input

P

= Power

DS39637A-page 12

Preliminary

 2004 Microchip Technology Inc.

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