●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
