Parameter Name

Value

Program Memory Type

Flash

Program Memory (KB)

64

CPU Speed (MIPS)

16

RAM Bytes

3,896

Data EEPROM (bytes)

1024

Digital Communication Peripherals

2-UART, 2-A/E/USART, 2-SPI, 2-I2C2-MSSP(SPI/I2C)

Capture/Compare/PWM Peripherals

2 CCP, 3 ECCP

Timers

3 x 8-bit, 4 x 16-bit

ADC

17 ch, 10-bit

Comparators

2

Temperature Range (C)

-40 to 125

Operating Voltage Range (V)

1.8 to 5.5

Pin Count

28

XLP

Yes

Cap Touch Channels

17

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