- 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
- Sleep mode: 100 nA, typical
- Watchdog Timer: 500 nA, typical
- Timer1 Oscillator: 500 nA @ typical 32 kHz Flexible Oscillator Structure
- 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
- Allows for safe shutdown if peripheral clock stops
- Two-Speed Oscillator Start-up
- 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
- 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
- Up to 28 channels for button, sensor or slider input
- Two rail-to-rail analog comparators
- Comparator inputs and outputs externally accessible and configurable
- Programmable On-chip Voltage Reference (CVREF) module (% of VDD)
- Selectable on-chip fixed voltage reference
- 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 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
- One, two or four PWM outputs
- Selectable polarity
- Programmable dead time
- Auto-shutdown and Auto-restart
- PWM output steering control
- 3-wire SPI (supports all 4 SPI modes)
- I2C™ Master and Slave modes (Slave mode with address masking)
- Supports RS-232, RS-485 and LIN 2.0
- Auto-Baud Detect
- Auto Wake-up on Start bit