Program Memory TypeFlash
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
28 ch, 10-bit
Comparators
2
Temperature Range (C)
-40 to 125
Operating Voltage Range (V)
1.8 to 5.5
Pin Count
40
XLP
Yes
Cap Touch Channels
28
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
