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PIC18F27K42
  • PIC18F27K42
  • PIC18F27K42
  • PIC18F27K42
  • PIC18F27K42

PIC18F27K42

In Production

PIC18(L)FxxK42 MCUs integrate a rich set of core independent peripherals, intelligent analog peripherals and large Flash/RAM/EEPROM memories. These 28-, 40- and 48-pin devices also offer a host of low power features, performance improvements and design flexibility options that easily and rapidly enable the complex set of functions required by many of today's embedded control applications.PIC18F "K42" Product Family OverviewCheck out the code examples in MPLAB XpressWatch livestream highlighting the K42...

Microchip Technology PIC18F27K42 Product Info

16 April 2026 0

Parameters

Program Memory Size (KB)

128

RAM

8192

Data EEPROM (bytes)

1024

Pin Count

28

Operation Voltage Max.(V)

5.5

Operation Voltage Min.(V)

1.8

ADC Resolution Max

12

ADC Channels

24

Zero Cross Detect

True

Number of Comparators

2

SPI

1

I2C

2

Stand alone PWM

4

Low Power

Yes

Numerically Controlled Oscillator (NCO)

1

Data Signal Modulator (DSM)

1

Features

  • Interrupt Vector Table
  • Programmable single or dual priority
  • Two level hardware context saving
  • Eliminates need for CPU involvement in data transfers
  • Access to all memory spaces and peripherals
  • Flexible source and destination message sizes
  • Programmable DMA priority
  • Memory Access Partition (MAP) - Customize flash partitioning with bootloader write protection
  • Device Information Area (DIA) - Dedicated memory area for data storage of temp sensor factory calibration value, factory ID and  FVR values for ADC and COMP
  • WDT: 500nA @ 1.8V typical
  • SLEEP mode: 50nA @ 1.8V typical
  • DOZE mode allows CPU to run at a lower clock speed than peripherals
  • IDLE and SLEEP modes selectively shut down peripherals and/or core for power reduction
  • Averaging, filter calculations, oversampling and threshold comparison (ADCC)
  • Automates touch sampling and reduces software size and CPU usage when touch or proximity sensing is required (ADCC)
  • 5-bit resolution, rail-to-rail (DAC)
  • Unbuffered I/O pin output
  • Comparator hysteresis enable
  • Invert output polarity
  • Fixed Voltage Reference (FVR) module - 1.024V, 2.048V and 4.096V output levels
  • Senses high voltage AC signal (ZCD)
  • Generates interrupts on zero cross (ZCD)
  • DMA compatible
  • Asynchronous UART, RS-232, RS-485 compatible
  • Programmable 1, 1.5, 2 stop bits
  • Configurable length bytes
  • Arbitrary length data packets
  • Separate transmit and receive buffers with 2-byte FIFO and DMA capabilities
  • SMBus, PMBUSTM compatible
  • In-Circuit Debug Integrated On-Chip
  • In-Circuit Serial Programing (ICSP) via Two Pins

    • Description

    PIC18(L)FxxK42 MCUs integrate a rich set of core independent peripherals, intelligent analog peripherals and large Flash/RAM/EEPROM memories. These 28-, 40- and 48-pin devices also offer a host of low power features, performance improvements and design flexibility options that easily and rapidly enable the complex set of functions required by many of today's embedded control applications.

    PIC18F "K42" Product Family Overview

    Check out the code examples in MPLAB Xpress

    Watch livestream highlighting the K42

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