PIC18F2525_08 datasheet(18/412 Pages) MICROCHIP

Part #	PIC18F2525

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

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Manufacturer	MICROCHIP [Microchip Technology]

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18 / 412 page

PIC18F2525/2620/4525/4620

DS39626E-page 16

TABLE 1-3:

PIC18F4525/4620 PINOUT I/O DESCRIPTIONS

Pin Name

Pin Number

Type

Buffer

Type

Description

PDIP

QFN

TQFP

MCLR/VPP/RE3

MCLR

VPP

RE3

118

18

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

13

32

30

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;

analog otherwise.

External clock source input. Always associated with

pin function OSC1. (See related OSC1/CLKI,

OSC2/CLKO pins.)

General purpose I/O pin.

OSC2/CLKO/RA6

OSC2

CLKO

RA6

14

33

31

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

Note 1:

Default assignment for CCP2 when the CCP2MX Configuration bit is set.

2:

Alternate assignment for CCP2 when the CCP2MX Configuration bit is cleared.

3:

For the QFN package, it is recommended that the bottom pad be connected to VSS.

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PIC18F2525 Datasheet(PDF) 18 Page - Microchip Technology

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