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PIC18LF6622-E

64/80-Pin, 1-Mbit, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

1.0 DEVICE OVERVIEW

This document contains device specific information for

the following devices:

• PIC18F6527

• PIC18F6622

• PIC18F6627

• PIC18F6722

• PIC18F8527

• PIC18F8622

• PIC18F8627

• PIC18F8722

• PIC18LF6527

• PIC18LF6622

• PIC18LF6627

• PIC18LF6722

• PIC18LF8527

• PIC18LF8622

• PIC18LF8627

• PIC18LF8722

This family offers the advantages of all PIC18 micro-

controllers – namely, high computational performance at

an economical price – with the addition of high-

endurance, Enhanced Flash program memory. On top of

these features, the PIC18F8722 family introduces

design enhancements that make these microcontrollers

a logical choice for many high-performance, power

sensitive applications.

1.1 New Core Features

1.1.1 nanoWatt TECHNOLOGY

All of the devices in the PIC18F8722 family incorporate

a range of features that can significantly reduce power

consumption during operation. Key items include:

• Alternate Run Modes: By clocking the controller

from the Timer1 source or the internal oscillator

block, power consumption during code execution

can be significantly reduced.

• Multiple Idle Modes: The controller can also run

with its CPU core disabled but the peripherals still

active. In these states, power consumption can be

reduced even further.

• On-the-fly Mode Switching: The power-

managed modes are invoked by user code during

operation, allowing the user to incorporate power-

saving ideas into their application’s software

design.

• Low Consumption in Key Modules: The

power requirements for both Timer1 and the

Watchdog Timer are minimized. See

Section 28.0 “Electrical Characteristics”

for values.

PIC18F8722 FAMILY

1.1.2 EXPANDED MEMORY

The PIC18F8722 family provides ample room for

application code and includes members with 48, 64,

96 or 128 Kbytes of code space.

• Data RAM and Data EEPROM: The PIC18F8722

family also provides plenty of room for application

data. The devices have 3936 bytes of data RAM,

as well as 1024 bytes of data EEPROM, for long

term retention of nonvolatile data.

• Memory Endurance: The Enhanced Flash cells

for both program memory and data EEPROM are

rated to last for many thousands of erase/write

cycles, up to 100,000 for program memory and

1,000,000 for EEPROM. Data retention without

refresh is conservatively estimated to be greater

than 40 years.

1.1.3

MULTIPLE OSCILLATOR OPTIONS

AND FEATURES

All of the devices in the PIC18F8722 family offer ten

different oscillator options, allowing users a wide range

of choices in developing application hardware. These

include:

• Four Crystal modes, using crystals or ceramic

resonators

• Two External Clock modes, offering the option of

using two pins (oscillator input and a divide-by-4

clock output) or one pin (oscillator input, with the

second pin reassigned as general I/O)

• Two External RC Oscillator modes with the same

pin options as the External Clock modes

• An internal oscillator block which provides an

8 MHz clock and an INTRC source (approxi-

mately 31 kHz), as well as a range of 6 user

selectable clock frequencies, between 125 kHz to

4 MHz, for a total of 8 clock frequencies. This

option frees the two oscillator pins for use as

additional general purpose I/O.

• A Phase Lock Loop (PLL) frequency multiplier,

available to both the high-speed crystal and inter-

nal oscillator modes, which allows clock speeds of

up to 40 MHz. Used with the internal oscillator, the

PLL gives users a complete selection of clock

speeds, from 31 kHz to 32 MHz – all without using

an external crystal or clock circuit.

 2004 Microchip Technology Inc.

Preliminary

DS39646B-page 7

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