Microchip PIC18F25K22-I/ML: A Comprehensive Technical Overview

The Microchip PIC18F25K22-I/ML stands as a prominent member of the enhanced mid-range PIC18 "K-series" family, engineered to deliver a powerful blend of performance, peripheral integration, and power efficiency. This 8-bit microcontroller is housed in a compact 28-pin QFN (ML) package, making it an ideal solution for a vast array of embedded control applications in the automotive, industrial, consumer, and IoT domains.

At its core, the device features an enhanced PIC18 architecture with a 16-bit wide instruction set and an 8-bit data path. Operating at a maximum frequency of 64 MHz, it achieves a performance of 16 MIPS (Millions of Instructions Per Second), providing substantial computational power for complex control algorithms. A key innovation in this family is the inclusion of a C compiler-optimized architecture, which significantly improves code efficiency.

Memory configuration is robust, featuring 32 KB of self-read/write capable Flash program memory, which allows for efficient data tables and bootloader operation. This is complemented by 1536 bytes of SRAM and 1024 bytes of EEPROM data memory, offering ample space for variables and data storage without external components.

The peripheral set is exceptionally rich, designed to minimize external component count and system cost. A standout feature is the nanoWatt XLP (eXtreme Low Power) technology, enabling ultra-low power consumption in active, idle, and sleep modes, which is critical for battery-powered applications. The controller integrates multiple communication interfaces, including:

EUSART: For RS-232, RS-485, and LIN bus communication.

MSSP (Master Synchronous Serial Port): Configurable as either SPI or I²C™, enabling communication with a plethora of sensors, memories, and other peripherals.

Enhanced CCP (Capture/Compare/PWM): Provides high-resolution PWM outputs for precise control of motors, LEDs, and power converters.

Other critical integrated peripherals include a 10-bit Analog-to-Digital Converter (ADC) with up to 24 channels, dual analog comparators, and a programmable brown-out reset (BOR) module for reliable operation in noisy power environments.

The PIC18F25K22-I/ML operates over an extensive voltage range of 1.8V to 5.5V, granting designers immense flexibility in power supply design and enabling the core to function reliably as battery voltage decays. Its industrial temperature range (-40°C to +85°C) ensures stable performance in harsh environmental conditions.

ICGOODFIND: The PIC18F25K22-I/ML is a highly integrated, flexible, and power-efficient 8-bit microcontroller. Its potent combination of high-speed processing, extensive memory, a comprehensive suite of advanced peripherals, and nanoWatt XLP technology makes it a superior choice for designers seeking to create sophisticated, reliable, and energy-conscious embedded systems.

Keywords:

1. nanoWatt XLP

2. 8-bit Microcontroller

3. Peripheral Integration

4. 64 MHz

5. QFN Package