Microchip PIC32MX564F128L-I/PT: A Comprehensive Technical Overview and Application Guide
The Microchip PIC32MX564F128L-I/PT represents a powerful and versatile 32-bit microcontroller unit (MCU) within the renowned PIC32MX family. Engineered for applications demanding high computational performance, extensive connectivity, and robust peripheral integration, this MCU is a cornerstone for complex embedded designs. This article provides a detailed technical breakdown and practical guidance for leveraging its full potential.
At the heart of this device lies the MIPS32® M4K® core, operating at up to 100 MHz. This processor core delivers a significant performance boost over traditional 16 or 8-bit architectures, offering 1.56 DMIPS/MHz and enabling the efficient execution of complex algorithms and control routines. The core is supported by a large, integrated memory subsystem, featuring 128 KB of Flash program memory and 32 KB of RAM, providing ample space for sophisticated application code and data handling.
A key strength of the PIC32MX564F128L is its rich set of integrated peripherals, making it a truly system-on-chip (SoC) solution. Connectivity is a major highlight, featuring:
Dual USB 2.0 OTG (On-The-Go) controllers, allowing the device to act as either a USB host, peripheral, or dual-role, which is ideal for interfacing with a vast array of USB devices.
10/100 Ethernet MAC with dedicated DMA, facilitating network connectivity for IoT and industrial communication applications.
Dual UART, SPI, and I²C™ modules for robust serial communication with sensors, displays, and other peripherals.
For control-oriented tasks, the MCU is exceptionally well-equipped. It includes a 16-channel 10-bit Analog-to-Digital Converter (ADC) capable of 1 Msps sample rates for precise sensor data acquisition. Furthermore, it offers 5x 16-bit timers/counters and 5x Capture/Compare/PWM (CCP) modules, providing the necessary resources for motor control, power conversion, and generating complex waveforms.

The inclusion of a Dedicated DMA Controller is critical for maintaining high system performance. By offloading data transfer tasks between peripherals and memory from the CPU, the DMA ensures the processor core is free to execute critical code, maximizing overall system throughput and efficiency.
Application Guide
This combination of features makes the PIC32MX564F128L-I/PT suitable for a wide range of demanding applications:
Industrial Control Systems: PLCs, motor control units, and automation controllers benefit from its processing power, robust communication (Ethernet), and numerous I/O options.
Advanced Human-Machine Interfaces (HMI): Driving graphical displays and managing user input via touch or peripherals is facilitated by the high clock speed and ample memory.
Networking and Communication Gateways: Its integrated Ethernet and dual USB OTG make it perfect for building bridges between different network protocols.
Medical and Diagnostic Equipment: The MCU's precision timing, ADC, and processing capabilities meet the needs of portable medical devices and diagnostic tools.
The Microchip PIC32MX564F128L-I/PT stands out as a highly integrated and powerful 32-bit MCU solution. Its blend of a high-performance MIPS core, extensive connectivity options including USB OTG and Ethernet, and a comprehensive suite of control peripherals makes it an excellent choice for developers tackling complex embedded systems that require both data processing and robust external communication.
Keywords: PIC32MX, MIPS32 M4K Core, USB OTG, 10/100 Ethernet MAC, Embedded Connectivity
