PIC18F2685 datasheet(14/484 Pages) MICROCHIP

Part #	PIC18F2685

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

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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14 / 484 page

PIC18F2682/2685/4682/4685

DS39761B-page 12

Preliminary

TABLE 1-2:

PIC18F2682/2685 PINOUT I/O DESCRIPTIONS

Pin Name

Number

Type

Buffer

Type

Description

PDIP,

SOIC

MCLR/VPP/RE3

MCLR

VPP

RE3

1

I

P

I

ST

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

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

Reset to the device.

Programming voltage input.

Digital input.

OSC1/CLKI/RA7

OSC1

CLKI

RA7

9

I

I/O

ST

CMOS

TTL

Oscillator crystal or external clock input.

Oscillator crystal input or external clock source input.

ST buffer when configured in RC mode; CMOS otherwise.

External clock source input. Always associated with pin

function OSC1. (See related OSC2/CLKO pin.)

General purpose I/O pin.

OSC2/CLKO/RA6

OSC2

CLKO

RA6

10

O

I/O

—

TTL

Oscillator crystal or clock output.

Oscillator crystal output. Connects to crystal or resonator in

Crystal Oscillator mode.

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

frequency of OSC1 and denotes the instruction cycle rate.

General purpose I/O pin.

Legend: TTL = TTL compatible input

CMOS = CMOS compatible input or output

ST

= Schmitt Trigger input with CMOS levels

I

= Input

O

= Output

P

= Power

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PIC18F2685 Datasheet(PDF) 14 Page - Microchip Technology

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