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 – 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 µA, 1 MHz, 2V

   - PRI_IDLE: 37 µA, 1 MHz, 2V

   - SEC_RUN: 14 µA, 32 kHz, 2V

   - SEC_IDLE: 5.8 µA, 32 kHz, 2V

   - RC_RUN: 110 µA, 1 MHz, 2V

   - RC_IDLE: 52 µA, 1 MHz, 2V

   - Sleep: 0.1 µA, 1 MHz, 2V

• Timer1 Oscillator: 1.1 µA, 32 kHz, 2V

• Watchdog Timer: 2.1 µA

• 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 – 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