Microchip Technology dsPIC33CH dual-core digital signal controllers

System developers designing high-end embedded control applications with multiple software teams can now benefit from a family of dual-core digital signal controllers (DSCs) in a single chip, enabling easy software integration.

Microchip Technology’s dsPIC33CH has one core designed to function as a master, while the other functions as a slave. The slave core can be used for executing dedicated, time-critical control code, while the master core is busy running system-level functions, including user interface (UI), monitoring and communications, customised for the end application.

The product is designed to facilitate independent code development for each core by separate design teams — and later enables seamless integration when they are brought together in one chip. Its dual independent cores enable a multiteam software development approach, with two workflows running in parallel. Time-critical control loops can be separated from housekeeping functions, allowing each core’s code to be individually and effectively optimised.

Another key benefit of distributing processing workload across two DSC cores in a single device is the ability to achieve higher power density through higher switching frequencies (more than 2 MHz compared to around 1 MHz for a single-core controller), which can result in smaller components. Additionally, the two cores can be programmed to monitor each other for functional safety reasons, facilitating robust system design.

The range is optimised for high-performance digital power, motor control and embedded applications requiring sophisticated algorithms. Typical power applications include wireless charging, server power supplies, DC to DC converters, chargers and inverters. The product can also be used as a motor control in pumps, fans, drones, robotics, power tools and consumer appliances; in automotive electronic sensors, industrial automation and control, and medical diagnostic equipment; and as a gateway or central processor for IoT applications.