PIC18F46K22

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 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