Microchip PIC32MX795F512LT-80I/PF 32-bit Microcontroller Technical Overview and Application Guide

The Microchip PIC32MX795F512LT-80I/PF represents a high-performance member of the PIC32MX family, engineered to deliver a powerful blend of processing performance, rich peripheral integration, and connectivity options for demanding embedded applications. This technical overview delves into its core architecture, key features, and typical application scenarios.

At the heart of this microcontroller lies a 32-bit MIPS M4K core, operating at a maximum frequency of 80 MHz. This robust processor core provides the computational muscle necessary for complex tasks, enabling efficient execution of control algorithms, data processing, and real-time operations. The core is supported by a sophisticated memory subsystem, featuring 512 KB of Flash program memory and 128 KB of RAM. This substantial memory space is critical for housing large application code, operating systems like FreeRTOS, and processing significant data sets without external memory.

A standout feature of the PIC32MX795F512LT is its extensive and diverse set of integrated peripherals, making it a truly system-on-chip (SoC) solution. Its connectivity suite is particularly impressive, including:

Dual CAN 2.0b modules: Essential for robust industrial control and automotive networking.

10/100 Ethernet MAC: Facilitates wired network connectivity for IoT gateways and remote monitoring systems.

USB 2.0 OTG (Host/Device/On-The-Go): Offers flexible connectivity for interfacing with peripherals or acting a USB host.

For analog interfacing, the controller is equipped with a 16-channel 10-bit ADC, allowing for precise measurement of multiple analog sensors. For control applications, it includes hardware support for 5x 16-bit timers/counters and 5x PWM (Pulse Width Modulation) modules, which are indispensable for motor control, power conversion, and generating complex waveforms.

The device operates over an industrial temperature range (-40°C to +85°C), ensuring reliability in harsh environments. Its 100-pin TQFP package offers a compact footprint while providing ample I/O lines for interfacing with external components.

Application Guide

The combination of high performance, extensive connectivity, and large memory makes the PIC32MX795F512LT-80I/PF ideal for a wide array of advanced applications. Key domains include:

Industrial Automation: Serving as the main controller for PLCs, motor control units, and industrial networking gateways leveraging its CAN and Ethernet capabilities.

Telematics and Automotive Control: Used in vehicle data loggers, diagnostic systems, and in-vehicle networks due to its dual CAN interfaces and robust construction.

Networked Consumer and IoT Devices: Acting as a connected appliance controller or an IoT gateway, managing data flow between local sensors and cloud services via Ethernet.

Medical Equipment: Powering portable diagnostic devices that require a user interface, data processing, and connectivity.

ICGOODFIND: The Microchip PIC32MX795F512LT-80I/PF is a highly integrated and powerful 32-bit microcontroller. Its 80 MHz MIPS core, large memory footprint, and rich set of peripherals like Ethernet, dual CAN, and USB OTG make it an exceptionally versatile solution for developers building next-generation connected and real-time embedded systems across industrial, automotive, and consumer markets.

Keywords:

1. 32-bit MIPS Core

2. Ethernet Connectivity

3. Dual CAN Interface

4. 512KB Flash Memory

5. Industrial Temperature Range