High Performance RISC CPU:

  C Compiler optimized architecture/instruction set

  Data EEPROM to 1024 bytes

  Linear program memory addressing to 64 Kbytes

  Linear data memory addressing to 4 Kbytes

  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

Extreme Low-Power Management with nanoWatt XLP?:

  Sleep mode: 100 nA, typical

  Watchdog Timer: 500 nA, typical

  Timer1 Oscillator: 500 nA @ typical 32 kHz

Flexible Oscillator Structure:

  Precision 16 MHz internal oscillator block:

  Factory calibrated to ± 1%

  Software selectable frequencies range of 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

Special Microcontroller Features:

  Full 5.5V operation (PIC18F2XK22/4XK22)

  Low voltage option available for 1.8V-3.6V operation (PIC18LF2XK22/4XK22)

  Self-reprogrammable under software control

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

  Programmable Brown-out Reset (BOR)

  Extended Watchdog Timer (WDT) with on-chip oscillator and software enable

  Programmable code protection

  In-Circuit Serial Programming? (ICSP?) via two pins

  In-Circuit Debug via two pins

Analog Features:

  Analog-to-Digital Converter (ADC) module:

  10-bit resolution

  17 analog input channels (PIC18F/LF2XK22)

  28 analog input channels (PIC18F/LF4XK22)

  Auto acquisition capability

  Conversion available during Sleep

  Programmable High/Low Voltage Detection (PLVD) module

  Charge Time Measurement Unit (CTMU) for mTouch? support:

  Up to 28 channels for button, sensor or slider input

  Analog comparator module with:

  Two rail-to-rail analog comparators

  Comparator inputs and outputs externally accessible and configurable

  Voltage reference module with:

  Programmable On-chip Voltage Reference (CVREF) module (% of VDD)

  Selectable on-chip fixed voltage reference

Peripheral Features:

  24/35 I/O pins and 1 input-only pin:

  High current sink/source 25 mA/25 mA

  Individually programmable weak pull-ups

  Individually programmable interrupt-on-pin change

  Three external interrupt pins

  Up to seven Timer modules:

  Up to four 16-bit timers/counters with prescaler

  Up to three 8-bit timers/counters

  Dedicated, low-power Timer1 oscillator

  Up to two Capture/Compare/PWM (CCP) modules

  Up to three Enhanced Capture/Compare/PWM

(ECCP) modules with:

  One, two or four PWM outputs

  Selectable polarity

  Programmable dead time

  Auto-shutdown and Auto-restart

  PWM output steering control

  Two Master Synchronous Serial Port (MSSP) modules with two modes of operation:

  3-wire SPI (supports all 4 SPI modes)

  I2C? Master and Slave modes (Slave mode with address masking)

  Two Enhanced Universal Synchronous Asynchronous Receiver Transmitter modules (EUSART):

  Supports RS-232, RS-485 and LIN 2.0

  Auto-Baud Detect

  Auto Wake-up on Start bit