Microchip PIC32MX250F128B-I/SP 32-bit Microcontroller Overview and Application Guide
The Microchip PIC32MX250F128B-I/SP represents a pivotal component in the realm of 32-bit microcontrollers, combining high performance with exceptional peripheral integration in a compact package. As part of the PIC32MX family, this device is engineered to deliver robust computational power and flexibility, making it suitable for a wide array of embedded applications—from industrial control systems to consumer electronics and IoT devices.
Architectural Overview
At its core, the PIC32MX250F128B-I/SP features a MIPS32® M4K® processor core operating at up to 50 MHz, providing a balance between speed and power efficiency. With 128 KB of Flash memory and 32 KB of RAM, it offers ample space for complex firmware and data processing tasks. The microcontroller supports a single-cycle multiply and hardware divide unit, enhancing its computational throughput for demanding algorithms.
Key Peripherals and Features
A standout attribute of this microcontroller is its rich set of integrated peripherals. It includes:
- Multiple communication interfaces such as UART, SPI, and I2C, facilitating seamless connectivity with sensors, displays, and other microcontrollers.
- 10-bit Analog-to-Digital Converter (ADC) with up to 13 channels, enabling precise analog signal acquisition for sensor-based systems.
- Dual Compare/PWM modules and 5-channel Input Capture, which are critical for motor control, power regulation, and timing applications.

- USB 2.0 Full-Speed interface, allowing for device connectivity in PC-peripheral projects.
The device is housed in a 28-pin SPDIP package, making it accessible for prototyping and volume production while providing a compact footprint.
Application Insights
The PIC32MX250F128B-I/SP excels in applications requiring real-time processing and connectivity. For instance, in smart home devices, it can manage user interfaces, sensor data, and wireless communication modules. In industrial automation, its PWM and ADC peripherals are ideal for controlling motors and reading analog sensors with high accuracy. The USB capability also makes it a fit for custom human interface devices (HIDs) like game controllers or diagnostic tools.
Development is supported by Microchip’s MPLAB® X IDE and Harmony framework, which streamline code development and peripheral configuration. This reduces time-to-market and simplifies implementation of complex functionalities.
Power Management and Efficiency
With multiple power-saving modes (e.g., Sleep, Idle), the microcontroller optimizes energy consumption in battery-operated applications. Its ability to dynamically switch clock sources and peripherals ensures efficiency without sacrificing performance.
ICGOOODFIND: The PIC32MX250F128B-I/SP is a versatile and powerful 32-bit microcontroller that blends processing muscle with extensive peripheral integration. Its combination of memory, communication options, and analog features positions it as an excellent choice for developers tackling advanced embedded projects across diverse industries.
Keywords:
32-bit Microcontroller, MIPS32 Core, Peripheral Integration, Embedded Applications, USB Connectivity
