PIC18F2510-ESLASHML datasheet(7/376 Pages) MICROCHIP

7 / 376 page

DS39636D-page 9

PIC18F2X1X/4X1X

1.0

DEVICE OVERVIEW

This document contains device specific information for

the following devices:

This family offers the advantages of all PIC18

microcontrollers

–

namely,

high

computational

performance at an economical price – with the addition

of high-endurance, Flash program memory. On top of

these features, the PIC18F2X1X/4X1X 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 PIC18F2X1X/4X1X 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 reduced by as much as 90%.

• 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, to as little as 4% of normal

operation requirements.

• 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.

• Lower Consumption in Key Modules: The

power requirements for both Timer1 and the

Watchdog Timer have been minimized. See

Section 25.0 “Electrical Characteristics” for

values.

1.1.2

MULTIPLE OSCILLATOR OPTIONS

AND FEATURES

All of the devices in the PIC18F2X1X/4X1X 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.

Besides its availability as a clock source, the internal

oscillator block provides a stable reference source that

gives the family additional features for robust

operation:

• Fail-Safe Clock Monitor: This option constantly

monitors the main clock source against a

reference signal provided by the internal

oscillator. If a clock failure occurs, the controller is

switched to the internal oscillator block, allowing

for continued low-speed operation or a safe

application shutdown.

• Two-Speed Start-up: This option allows the

internal oscillator to serve as the clock source

from Power-on Reset, or wake-up from Sleep

mode, until the primary clock source is available.

• PIC18F2410

• PIC18LF2410

• PIC18F2510

• PIC18LF2510

• PIC18F2515

• PIC18LF2515

• PIC18F2610

• PIC18LF2610

• PIC18F4410

• PIC18LF4410

• PIC18F4510

• PIC18LF4510

• PIC18F4515

• PIC18LF4515

• PIC18F4610

• PIC18LF4610

PIC18F2510-E/ML 数据表(PDF) 7 Page - Microchip Technology

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