High-Performance RISC CPU:
• C Compiler Optimized Architecture:
 - Optional extended instruction set designed to optimize re-entrant code
• Up to 1024 Bytes Data EEPROM
• Up to 64 Kbytes Linear Program Memory Addressing
• Up to 3896 Bytes Linear Data Memory Addressing
• Up to 16 MIPS Operation
• 16-bit Wide Instructions, 8-bit Wide Data Path
• Priority Levels for Interrupts
• 31-Level, Software Accessible Hardware Stack
• 8 x 8 Single-Cycle Hardware Multiplier

Flexible Oscillator Structure:
• Precision 16 MHz Internal Oscillator Block:
 - Factory calibrated to ± 1%
 - Selectable frequencies, 31 kHz to 16 MHz
 - 64 MHz performance available using PLL – no external components required
• Four Crystal modes up to 64 MHz
• Two External Clock modes up to 64 MHz
• 4X Phase Lock Loop (PLL)
• Secondary Oscillator using Timer1 @ 32 kHz
• Fail-Safe Clock Monitor:
 - Allows for safe shutdown if peripheral clock stops
 - Two-Speed Oscillator Start-up

Analog Features:
• Analog-to-Digital Converter (ADC) module:
 - 10-bit resolution, up to 30 external channels
 - Auto-acquisition capability
 - Conversion available during Sleep
 - Fixed Voltage Reference (FVR) channel
 - Independent input multiplexing
• Analog Comparator module:
 - Two rail-to-rail analog comparators
 - Independent input multiplexing
• Digital-to-Analog Converter (DAC) module:
 - Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels
 - 5-bit rail-to-rail resistive DAC with positive and negative reference selection
• Charge Time Measurement Unit (CTMU) module:
 - Supports capacitive touch sensing for touch screens and capacitive switches

Extreme Low-Power Management with nanoWatt XLP:
• Sleep mode: 20 nA, typical
• Watchdog Timer: 300 nA, typical
• Timer1 Oscillator: 800 nA @ 32 kHz
• Peripheral Module Disable Special Microcontroller Features:
• Full 5.5V Operation – PIC18FXXK22 devices
• 1.8V to 3.6V Operation – PIC18LFXXK22 devices
• Self-Programmable under Software Control
• High/Low-Voltage Detection (HLVD) module:
 - Programmable 16-Level
 - Interrupt on High/Low-Voltage Detection
• Programmable Brown-out Reset (BOR):
 - With software enable option
 - Configurable shutdown in Sleep
• Extended Watchdog Timer (WDT):
 - Programmable period from 4 ms to 131s
• In-Circuit Serial Programming™ (ICSP™):
 - Single-Supply 3V
• In-Circuit Debug (ICD)

Peripheral Highlights:
• Up to 35 I/O Pins plus 1 Input-Only Pin:
 - High-Current Sink/Source 25 mA/25 mA
 - Three programmable external interrupts
 - Four programmable interrupt-on-change
 - Nine programmable weak pull-ups
 - Programmable slew rate
• SR Latch:
 - Multiple Set/Reset input options
• Two Capture/Compare/PWM (CCP) modules
• Three Enhanced CCP (ECCP) modules:
 - One, two or four PWM outputs
 - Selectable polarity
 - Programmable dead time
 - Auto-Shutdown and Auto-Restart
 - PWM steering
• Two Master Synchronous Serial Port (MSSP)
modules:
 - 3-wire SPI (supports all 4 modes)
 - I2C™ Master and Slave modes with address mask

Data Sheet

PIC18(L)F2X/4XK22

Brief

PIC18(L)F2X/4XK22

PIC18/PIC24 Deep Sleep Mode

PIC18 K-series