Microchip PIC18F25K80T-I/SS: A Comprehensive Technical Overview of the 8-Bit Microcontroller

The Microchip PIC18F25K80T-I/SS represents a robust and versatile member of the enhanced mid-range PIC18 "K80" family. This 8-bit microcontroller (MCU) is engineered to deliver a powerful combination of performance, low power consumption, and a rich set of integrated peripherals, making it a suitable choice for a vast array of embedded applications, including industrial control, automotive, consumer electronics, and Internet of Things (IoT) devices.

Housed in a 28-pin Shrink Small Outline Package (SSOP), this device is designed for space-constrained applications while providing a significant number of I/O lines and functional capabilities.

Core Architecture and Performance

At its heart, the PIC18F25K80T-I/SS features an enhanced PIC18 core with a 16-bit instruction set. While it processes data in 8-bit chunks, the wider instructions allow for more efficient code execution. The core can operate at speeds up to 64 MHz, achieving a performance of 16 MIPS (Million Instructions Per Second). This speed is more than adequate for complex control algorithms and data processing tasks typical in its target markets. A key feature is the nanoWatt XLP (eXtreme Low Power) technology, which enables it to operate effectively in battery-powered and energy-sensitive applications, with sleep currents down to just nanoamperes.

Memory Configuration

The MCU boasts a substantial memory footprint for an 8-bit device. It includes 96 KB of self-read/write capable Flash program memory, providing ample space for sophisticated application code. For data handling, it is equipped with 3896 bytes of RAM and 1024 bytes of Data EEPROM. The EEPROM is invaluable for storing critical data that must be retained even after a power cycle, such as configuration parameters or calibration constants.

Integrated Peripherals and Features

The richness of this microcontroller is evident in its extensive peripheral set:

Analog-to-Digital Converter (ADC): A high-resolution 10-bit ADC with up to 35 channels allows for extensive analog sensor interfacing.

Timers and CCP Modules: It includes 4 timers and 2 Capture/Compare/PWM (CCP) modules, with one capable of Enhanced Capture/Compare/PWM (ECCP) for advanced motor control and power conversion applications.

Communication Interfaces: A comprehensive suite of serial communication protocols is supported, including EUSART (for UART), SPI, and I2C™, enabling seamless connectivity with sensors, displays, memory chips, and other peripherals.

Complementary Waveform Generator (CWG): This peripheral is crucial for generating complementary output signals for controlling half-bridge and full-bridge drivers in power control systems.

Hardware Limit Timer (HLT): Adds an extra layer of safety by providing a hardware-based fault detection mechanism.

Development Support and Ecosystem

Microchip provides extensive support for the PIC18F family through the mature MPLAB X Integrated Development Environment (IDE) and the XC8 compiler. A wide range of hardware tools, including the PICKit™ and MPLAB ICD debuggers, facilitate easy programming and in-circuit debugging. This strong ecosystem significantly accelerates development and time-to-market for products based on this MCU.

ICGOODFIND Summary

The Microchip PIC18F25KK80T-I/SS stands out as a highly integrated and power-efficient 8-bit microcontroller. Its compelling blend of high-speed processing, extensive memory, a rich peripheral set including analog and communication interfaces, and ultra-low power capabilities makes it an exceptionally versatile solution. It is an ideal choice for designers seeking a reliable, feature-packed MCU to tackle complex embedded control challenges without sacrificing power budget or physical space.

Keywords:

PIC18F25K80T-I/SS

8-bit Microcontroller

nanoWatt XLP Technology

Integrated Peripherals

Embedded Control