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PIC18F25K42-E/SO

MCHPPIC18F25K42-E/SO

Microchip Technology
PIC PIC® XLP™ 18K, Functional Safety (FuSa) Microcontroller IC 8-Bit 64MHz 32KB (16K x 16) FLASH 28-SOIC
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Overview

The PIC18F25K42-E/SO is a high-performance 8-bit microcontroller featuring 32KB Flash and 2KB RAM, designed for functional safety (FuSa) and low-power applications. Operating at up to 64MHz, it includes advanced Core Independent Peripherals (CIPs) and two DMA controllers to offload data transfer tasks from the CPU. This Extended temperature range variant (-40C to +125C) is optimized for robust industrial and automotive environments requiring reliable control logic.

Why Choose This Part

This microcontroller offers significant throughput via its 64MHz internal oscillator and dual DMA channels, reducing CPU overhead during intensive I/O operations. It features Vectored Interrupts for faster response times and a Hardware Stack with 31 levels to simplify complex firmware development. Its Wide operating voltage range of 2.3V to 5.5V ensures compatibility with both legacy 5V systems and modern low-voltage circuitry.

Applications

Industrial Safety Systems
Utilizes the Windowed Watchdog Timer (WWDT) and 16-bit CRC with Scanner to ensure code integrity and system reliability in safety-critical hardware.
Automotive Sensor Interfacing
The high-speed 64MHz clock and 12-bit ADC with Computation (ADC2) enable precise processing of analog sensor data for vehicle subsystems.
Low-Power Remote Nodes
Leverages XLP technology and Peripheral Module Disable (PMD) to minimize current draw in battery-powered IoT and remote monitoring applications.
Distributed Control Networks
Integrates I2C, SPI, and UART/USART for robust communication within complex industrial automation frameworks.

Key Specifications

Speed 64MHz
RAM Size 2K x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, DMA, HLVD, POR, PWM, WDT
Connectivity I2C, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 25
Core Processor PIC
Package / Case 28-SOIC (0.295", 7.50mm Width)
Data Converters A/D 24x12b; D/A 1x5b
Oscillator Type Internal
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 28-SOIC
Voltage - Supply (Vcc/Vdd) 2.3V ~ 5.5V

Getting Started

Development is best supported by Microchip's MPLAB X IDE and the XC8 C Compiler. For hardware evaluation, the Curiosity High Pin Count (HPC) Development Board or the PIC18F25K42 Curiosity Nano provides a rapid prototyping environment. Debugging can be performed using the MPLAB PICkit 4 or ICD 4 in-circuit debuggers through the standard ICSP interface.

Part of PIC18F25xx family » PIC18F25

PIC18F25 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Flash RAM I/O Pins Package Speed ADC/DAC Stock
PIC18F25K42-E/SO (this part) 32KB 2K 25 SOIC-28 64M A/D 24x12b; D/A 1x5b —
PIC18F25K40-I/ML 32KB 2K 25 VQFN-28 64M A/D 35x10b; D/A 1x5b 976
PIC18F25K42-I/SS 32KB 2K 25 SSOP-28 64M A/D 24x12b; D/A 1x5b 1,388
PIC18F25K22-I/SP 32KB 1.5K 24 DIP-28 64M A/D 19x10b 8,237
PIC18F25K42-E/ML 32KB 2K 25 VQFN-28 64M A/D 24x12b; D/A 1x5b —
PIC18F25K50-I/SP 32KB 2K 22 DIP-28 48M A/D 14x10b 672
PIC18F25K42-I/ML 32KB 2K 25 VQFN-28 64M A/D 24x12b; D/A 1x5b 2,717
PIC18F25K50-I/SO 32KB 2K 22 SOIC-28 48M A/D 14x10b 2,498
PIC18F25K80-I/SP 32KB 3.6K 24 DIP-28 64M A/D 8x12b 3,360
PIC18F25Q10-I/ML 32KB 2K 25 VQFN-28 64M A/D 24x10b; D/A 1x5b 3,538
PIC18F25K42-I/SP 32KB 2K 25 DIP-28 64M A/D 24x12b; D/A 1x5b 558
PIC18F25K40-I/SO 32KB 2K 25 SOIC-28 64M A/D 35x10b; D/A 1x5b 1,123
PIC18F25Q10-I/SP 32KB 2K 25 DIP-28 64M A/D 24x10b; D/A 1x5b 14,009
PIC18F25K83-E/ML 32KB 2K 25 VQFN-28 64M A/D 24x12b; D/A 1x5b 2,717
PIC18F25Q10-E/ML 32KB 2K 25 VQFN-28 64M A/D 24x10b SAR; D/.. 645
PIC18F25K50-I/ML 32KB 2K 22 VQFN-28 48M A/D 14x10b 523
PIC18F25K83-E/SS 32KB 2K 25 SSOP-28 64M A/D 24x12b; D/A 1x5b 761
PIC18F25K80-I/SS 32KB 3.6K 24 SSOP-28 64M A/D 8x12b 1,799
PIC18F25K22-I/ML 32KB 1.5K 24 VQFN-28 64M A/D 19x10b 752
PIC18F25K42-I/MV 32KB 2K 25 UFQFN-28 64M A/D 24x12b; D/A 1x5b 973
PIC18F25K80-I/SO 32KB 3.6K 24 SOIC-28 64M A/D 8x12b 613

Also Consider

PIC18F26K42-E/SO MCHPMicrochip Technology - Offers double the Flash memory at 64KB for applications with larger code footprints while maintaining pin compatibility.
ATmega328PB MCHPMicrochip Technology - A popular 8-bit alternative with dual SPI/I2C interfaces, though it lacks the advanced DMA and FuSa features of the K42 family.