Microchip PIC24HJ128GP502-I/SO 16-bit Digital Signal Controller: Datasheet and Application Overview
The Microchip PIC24HJ128GP502-I/SO is a high-performance member of the PIC24H family of 16-bit digital signal controllers (DSCs). It effectively merges the control prowess of a microcontroller (MCU) with the computational muscle of a digital signal processor (DSP), creating a versatile solution for demanding embedded applications. This device is engineered for applications requiring significant processing power, efficient handling of digital signals, and robust peripheral integration, all while maintaining low power consumption.
Core Architectural Features
At the heart of this DSC lies a modified Harvard architecture 16-bit CPU core capable of operating at up to 40 MIPS (40 MHz). A key performance driver is the integrated DSP engine, which includes a 17-bit x 17-bit single-cycle hardware fractional/integer multiplier, a 40-bit barrel shifter, and dual 40-bit saturating accumulators. This hardware acceleration is crucial for executing complex algorithms, such as filtering, Fourier transforms, and noise cancellation, with far greater efficiency than a standard MCU.
The device is equipped with 128 KB of self-programmable Flash memory and 8 KB of RAM, providing ample space for both application code and data processing tasks. Its operational voltage range of 2.0V to 3.6V makes it suitable for both battery-powered and line-operated systems.
Comprehensive Peripheral Integration
The PIC24HJ128GP502 boasts a rich set of peripherals designed to minimize external component count and simplify system design:
Timers: It includes five 16-bit timers/counters, with one capable of operating as a real-time clock calendar (RTCC) with a dedicated oscillator.
Data Conversion: A fast 10-bit Analog-to-Digital Converter (ADC) with a 500 ksps conversion rate and multiple input channels allows for precise acquisition of analog sensor data.
Communication Interfaces: The device supports a wide array of serial communication protocols through its UART, SPI, and I²C™ modules. This enables seamless connectivity with sensors, memory, displays, and other peripherals or host processors.
Motor Control: Featuring a 8-channel 16-bit PWM module, it is exceptionally well-suited for advanced motor control applications, including brushless DC (BLDC) and permanent magnet synchronous motors (PMSM).
Target Applications
The combination of DSP functionality and MCU control makes the PIC24HJ128GP502-I/SO ideal for a broad spectrum of applications, including:
Advanced Motor Control Systems (e.g., industrial drives, automotive pumps, drones)
Digital Power Conversion and Smart Lighting (e.g., SMPS, PFC, digital ballasts)
Noise-Cancelling and Advanced Audio Processing
Medical and Biometric Sensing Equipment
General-Purpose High-Performance Embedded Control
Package and Ordering Information
The part number suffix "I/SO" specifies two key details: "I" indicates an industrial temperature range (-40°C to +85°C), and "SO" denotes the 28-pin Small Outline (SOIC) package, which is a common choice for space-constrained applications requiring surface-mount technology.
ICGOOODFIND: The Microchip PIC24HJ128GP502-I/SO stands out as a powerful and integrated 16-bit DSC. Its unique blend of a high-speed CPU, a dedicated DSP engine for algorithm acceleration, and a comprehensive set of peripherals like PWM and ADC makes it a superior choice for designers tackling complex real-time control and signal processing challenges across industrial, consumer, and automotive markets.
Keywords: 16-bit Digital Signal Controller, DSP Engine, Motor Control PWM, 40 MIPS Performance, Peripheral Integration
