Àû²©¡¤(¼¯ÍÅ)ÓÐÏÞ¹«Ë¾¹ÙÍø

DEVICE OVERVIEW

This document contains device specific information for the following devices:

? PIC18F2439 ? PIC18F4439

? PIC18F2539 ? PIC18F4539

This family offers the advantages of all PIC18 microcontrollers - namely, high computational performance

at an economical price - with the addition of high-endurance Enhanced FLASH program memory. The PIC18FXX39 family also provides an off-the-shelf solution for simple motor control applications, allowing users to create speed control solutions with small part counts and short development times.

High Performance RISC CPU:

? Linear program memory addressing to 24 Kbytes

? Linear data memory addressing to 1.4 Kbytes

? 20 MHz operation (5 MIPs):

- 20 MHz oscillator/clock input

- 5 MHz oscillator/clock input with PLL active

? 16-bit wide instructions, 8-bit wide data path

? 8 x 8 Single Cycle Hardware Multiplier

Special Microcontroller Features:

? 100,000 erase/write cycle Enhanced FLASH program memory typical

? 1,000,000 erase/write cycle Data EEPROM memory

? FLASH/Data EEPROM Retention: > 100 years

? Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

? Programmable code protection

? Power saving SLEEP mode

? Single supply 5V In-Circuit Serial Programming? (ICSP?) via two pins

? In-Circuit Debug (ICD) via two pins

Analog Features:

? Compatible 10-bit Analog-to-Digital Converter module (A/D) with:

- Fast sampling rate

- Conversion available during SLEEP

- DNL = ¡À1 LSb, INL = ¡À1 LSb

? Programmable Low Voltage Detection (PLVD)

- Supports interrupt on Low Voltage Detection

? Programmable Brown-out Reset (BOR)

Peripheral Features:

? High current sink/source 25 mA/25 mA

? Three external interrupt pins

? Timer0 module: 8-bit/16-bit timer/counter with 8-bit programmable prescaler

? Timer1 module: 16-bit timer/counter

? Timer3 module: 16-bit timer/counter

? Secondary oscillator clock option - Timer1/Timer3

? Two PWM modules:

- Resolution is 1- to 10-bit, Max. PWM freq. @ 8-bit resolution = 156 kHz 10-bit resolution = 39 kHz

? Single Phase Induction Motor Control kernel

- Programmable Motor Control Technology (ProMPT?) provides open loop Variable Frequency (VF) control

- User programmable Voltage vs. Frequency curve

- Most suitable for shaded pole and permanent split capacitor type motors

? Master Synchronous Serial Port (MSSP) module with two modes of operation:

- 3-wire SPI (supports all 4 SPI modes)

-I2C? Master and Slave mode

? Addressable USART module:

- Supports RS-485 and RS-232

? Parallel Slave Port (PSP) module

CMOS Technology:

? Low power, high speed FLASH/EEPROM technology

? Fully static design

? Wide operating voltage range (2.0V to 5.5V)

? Industrial and Extended temperature ranges