PIC18F1230-ESLASHP datasheet(9/312 Pages) MICROCHIP

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PIC18F1230/1330

Advance Information

DS39758B-page 7

1.0

DEVICE OVERVIEW

This document contains device-specific information for

the following devices:

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 PIC18F1230/1330 family introduces

design enhancements that make these microcontrollers

a logical choice for many high-performance, power

control and motor control applications.

Peripheral highlights include:

• 14-bit resolution Power Control PWM module

(PCPWM) with programmable dead-time insertion

The PCPWM can generate up to six complementary

PWM outputs with dead-band time insertion. Overdrive

current is detected by off-chip analog comparators or

the digital Fault input (FLTA).

PIC18F1230/1330 devices also feature Flash program

memory and an internal RC oscillator.

1.1

New Core Features

1.1.1

nanoWatt TECHNOLOGY

All of the devices in the PIC18F1230/1330 family incor-

porate 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.

• Low Consumption in Key Modules: The power

requirements for both Timer1 and the Watchdog

Timer are minimized. See Section 22.0 “Electrical

Characteristics” for values.

1.1.2

MULTIPLE OSCILLATOR OPTIONS

AND FEATURES

All of the devices in the PIC18F1230/1330 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 (approximately 31 kHz),

as well as a range of six user-selectable clock

frequencies, between 125 kHz to 4 MHz, for a total of

eight clock frequencies. This option frees the two

oscillator pins for use as additional general

purpose I/Os.

• A Phase Lock Loop (PLL) frequency multiplier,

available to both the High-Speed Crystal and Internal

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.

• PIC18F1230

• PIC18F1330

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