PIC18LF1330-I/SO【PDF 2/318 页】IC PIC MCU FLASH 4KX16 18SOIC

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PIC18F1230/1330

DS39758D-page 10

2009 Microchip Technology Inc.

1.2

Other Special Features

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.

Self-Programmability: These devices can write to

their own program memory spaces under internal

software control. By using a bootloader routine

located in the protected Boot Block at the top of

program memory, it becomes possible to create an

application that can update itself in the field.

Extended Instruction Set: The PIC18F1230/1330

family introduces an optional extension to the PIC18

instruction set, which adds eight new instructions

and an Indexed Addressing mode. This extension,

enabled as a device configuration option, has been

specifically designed to optimize re-entrant

application code originally developed in high-level

languages, such as C.

Power Control PWM Module:

This module

provides up to six modulated outputs for controlling

half-bridge and full-bridge drivers. Other features

include auto-shutdown on Fault detection and

auto-restart to reactivate outputs once the condition

has cleared.

Enhanced Addressable USART: This serial

communication module is capable of standard

RS-232 operation and provides support for the

LIN/J2602 bus protocol. Other enhancements

include automatic Baud Rate Detection and a 16-bit

Baud Rate Generator for improved resolution. When

the microcontroller is using the internal oscillator

block, the EUSART provides stable operation for

applications that talk to the outside world without

using an external crystal (or its accompanying

power requirement).

10-Bit A/D Converter: This module incorporates

programmable acquisition time, allowing for a

channel to be selected and a conversion to be

initiated without waiting for a sampling period and

thus, reducing code overhead.

Extended Watchdog Timer (WDT): This enhanced

version incorporates a 16-bit prescaler, allowing an

extended time-out range that is stable across

operating voltage and temperature. See

Section 23.0 “Electrical Characteristics”

for

time-out periods.

1.3

Details on Individual Family

Members

Devices in the PIC18F1230/1330 family are available

in 18-pin, 20-pin and 28-pin packages.

The devices are differentiated from each other in one

way:

Flash

program

memory

(4 Kbytes

for

PIC18F1230, 8 Kbytes for PIC18F1330).

All other features for devices in this family are identical.

These are summarized in Table 1-1.

A block diagram of the PIC18F1220/1320 device archi-

tecture is provided in Figure 1-1. The pinouts for this

device family are listed in Table 1-2.

Like all Microchip PIC18 devices, members of the

PIC18F1230/1330 family are available as both stan-

dard and low-voltage devices. Standard devices with

Enhanced Flash memory, designated with an “F” in the

part number (such as PIC18F1330), accommodate an

operating VDD range of 4.2V to 5.5V. Low-voltage

parts, designated by “LF” (such as PIC18LF1330),

function over an extended VDD range of 2.0V to 5.5V.

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