From DIY To Advanced NoC Solutions: The Future Of MCU Design

By Andy Nightingale

February 20, 2025

Packet-based data transfer mechanisms enable higher bandwidth, better routing optimization, and reduced congestion.

The evolution of microcontrollers (MCUs) has significantly transformed embedded systems, shifting from simple, standalone processors to complex, multifunctional units that rival traditional systems-on-chip (SoCs). These advancements are fueled by the demand for increased computational efficiency, cutting-edge features like AI and machine learning (ML) integration, and the need to address growing system-level complexity. At the core of this transition is Network-on-Chip (NoC) technology—an innovative solution redefining the microcontroller design and application landscape.

How microcontrollers have evolved

Microcontrollers were once considered basic, scaled-down embedded processors designed for simple, specific tasks. Early 8-bit MCUs were primarily deployed in applications like power tools, washing machines, or early automotive components. However, as demands from edge devices, IoT systems, and advanced industrial applications continue to escalate, modern microcontrollers have evolved into powerful 32-bit and even more advanced units.

Today’s MCUs support AI inference at the edge, integrate cybersecurity features, and enable highly precise tasks like fingerprint recognition, autonomous braking, or energy harvesting. This evolution has allowed them to encroach on application processor territories traditionally reserved for higher-end solutions.

This transformation is driving significant changes in the design process. Features like wireless connectivity, embedded FPGAs for field updates, and robust ML accelerators are becoming integral to modern microcontroller capabilities. These advanced MCUs blur the line between their older, simplistic versions and comprehensive, application-specific systems.

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