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DEVICE OVERVIEW

This document contains device specific information for the following devices:

? PIC18F2220 ? PIC18F4220

? PIC18F2320 ? PIC18F4320

This family offers the advantages of all PIC18 microcontrollers ¨C namely, high computational performance at an economical price with the addition of high endurance Enhanced Flash program memory. On top of these features, the PIC18F2220/2320/4220/4320 family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power sensitive applications.

Low-Power Features:

? Power Managed modes:

- Run: CPU on, peripherals on

- Idle: CPU off, peripherals on

- Sleep: CPU off, peripherals off

? Power Consumption modes:

- PRI_RUN: 150 ?A, 1 MHz, 2V

- PRI_IDLE: 37 ?A, 1 MHz, 2V

- SEC_RUN: 14 ?A, 32 kHz, 2V

- SEC_IDLE: 5.8 ?A, 32 kHz, 2V

- RC_RUN: 110 ?A, 1 MHz, 2V

- RC_IDLE: 52 ?A, 1 MHz, 2V

- Sleep: 0.1 ?A, 1 MHz, 2V

? Timer1 Oscillator: 1.1 ?A, 32 kHz, 2V

? Watchdog Timer: 2.1 ?A

? Two-Speed Oscillator Start-up

Oscillators:

? Four Crystal modes:

- LP, XT, HS: up to 25 MHz

- HSPLL: 4-10 MHz (16-40 MHz internal)

? Two External RC modes, up to 4 MHz

? Two External Clock modes, up to 40 MHz

? Internal oscillator block:

- 8 user selectable frequencies: 31 kHz, 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz, 8 MHz

- 125 kHz-8 MHz calibrated to 1%

- Two modes select one or two I/O pins

- OSCTUNE ¨C Allows user to shift frequency

? Secondary oscillator using Timer1 @ 32 kHz

? Fail-Safe Clock Monitor

- Allows for safe shutdown if peripheral clock stops

Peripheral Highlights:

? High current sink/source 25 mA/25 mA

? Three external interrupts

? Up to 2 Capture/Compare/PWM (CCP) modules:

- Capture is 16-bit, max. resolution is 6.25 ns (TCY/16)

- Compare is 16-bit, max. resolution is 100 ns (TCY)

- PWM output: PWM resolution is 1 to 10-bit

? Enhanced Capture/Compare/PWM (ECCP) module:

- One, two or four PWM outputs

- Selectable polarity

- Programmable dead-time

- Auto-Shutdown and Auto-Restart

? Compatible 10-bit, up to 13-channel Analog-to-Digital Converter module (A/D) with programmable acquisition time

? Dual analog comparators

? Addressable USART module:

- RS-232 operation using internal oscillator block (no external crystal required)

Special Microcontroller Features:

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

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

? Flash/Data EEPROM Retention: > 40 years

? Self-programmable under software control

? Priority levels for interrupts

? 8 x 8 Single-Cycle Hardware Multiplier

? Extended Watchdog Timer (WDT):

- Programmable period from 41 ms to 131s

- 2% stability over VDD and Temperature

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

? In-Circuit Debug (ICD) via two pins

? Wide operating voltage range: 2.0V to 5.5V