Microchip PIC32MX250F128D-I/PT: A Comprehensive Technical Overview
The Microchip PIC32MX250F128D-I/PT represents a significant member of the PIC32MX family of 32-bit microcontrollers, blending high performance with peripheral integration tailored for embedded control applications. This device is engineered around the MIPS32® M4K® core, a proven RISC architecture that operates at up to 50 MHz, delivering a robust 82 DMIPS performance. This computational power enables the handling of complex tasks that are typically challenging for 8 or 16-bit MCUs, making it suitable for applications requiring substantial data processing, connectivity, or sophisticated user interfaces.
A cornerstone of this MCU is its 128 KB of Flash program memory and 32 KB of RAM. This memory configuration provides ample space for both the application code and data, supporting relatively complex operating systems or protocol stacks. The Flash memory is reprogrammable, allowing for flexible firmware updates throughout the product development cycle and in the field.
The peripheral set of the PIC32MX250F128D is a key differentiator, designed to minimize external component count and simplify system design. It features a 10-bit Analog-to-Digital Converter (ADC) with a throughput of up to 1 Msps, capable of sampling multiple channels—a critical feature for precision sensing and measurement applications. For communication, the MCU is exceptionally well-equipped, integrating multiple serial communication modules including UART, SPI, and I2C™ protocols. Notably, it includes two I2S/SPI modules for interfacing with digital audio converters, making it a compelling choice for audio processing applications.
Further enhancing its connectivity profile is the inclusion of a USB 2.0 Full-Speed (12 Mbps) controller with an integrated PHY. This allows for direct connection to a host PC or other USB peripherals without requiring external components, simplifying the design of devices like data loggers, human interface devices (HID), or firmware updaters.
The timer resources are comprehensive, featuring five 16-bit timers and a 16-bit programmable pre-scaler. A dedicated Real-Time Clock and Calendar (RTCC) module is also onboard, which is invaluable for timekeeping functions in applications such as data logging, automation, and event scheduling.
Housed in a 44-pin TQFP package, the PIC32MX250F128D-I/PT offers a balanced number of I/O pins for its feature set, making it accessible for prototyping and manufacturing while maintaining a compact form factor. Its operating voltage range of 2.3V to 3.6V and industrial temperature range (-40°C to +85°C) ensure reliability and performance across a wide spectrum of environments, from consumer gadgets to industrial automation systems.
ICGOODFIND: The PIC32MX250F128D-I/PT stands out as a highly integrated and capable 32-bit microcontroller. Its combination of a high-performance MIPS core, substantial memory, a rich set of peripherals including USB, and its industrial-grade robustness make it an excellent and versatile choice for developers transitioning to 32-bit performance or designing complex embedded systems that require connectivity and data processing.
Keywords: MIPS32 M4K Core, 128KB Flash Memory, USB 2.0 Controller, 10-bit ADC, Integrated Peripherals.
