STMicroelectronics (NYSE: STM), a global semiconductor manufacturer, has introduced the STM32G5 series of mixed-signal microcontrollers (MCUs) for real-time power management, motor control and other industrial applications. The new series is designed for use in AI data centres, robotics, renewable energy systems, industrial drives and commercial drones.
Built around the Arm Cortex-M33 core, the STM32G5 MCUs deliver twice the computing performance of the previous STM32G4 series. They also feature upgraded peripherals to improve the speed and precision of power supplies, electric motors and other equipment. ST plans to expand the portfolio with dual-core products in 2027.
Patrick Aidoune, General Manager, General Purpose and Automotive Microcontrollers Division, STMicroelectronics, said the new series addresses rising energy requirements in AI data centres and the growing need for advanced control systems in robotics and industrial applications. He added that the MCUs would make higher computing performance available for embedded systems requiring improved efficiency, safety and security.
The growing power demands of AI infrastructure are increasing the need for efficient digital power management. With data centre rack power requirements moving towards 1 MW and some large facilities expected to require more than 2 GW of peak power by 2030, precise control of power supplies is becoming increasingly important.
The STM32G5 series features an enhanced high-resolution timer that enables equipment manufacturers to develop power-control systems that respond to changing server workloads. It also supports higher switching frequencies in power supplies using silicon carbide (SiC) and gallium nitride (GaN) semiconductors. The MCUs are also designed for robotics applications that require simultaneous control of multiple motors and sensors. Their processing capabilities and integrated peripherals support applications such as robotic hands with up to 20 motors.
The series includes a 12-channel high-resolution timer, position encoder, motor-control timers and programmable logic array. Other features include a 12-bit analogue-to-digital converter, operational amplifier, digital-to-analogue converter and high-speed comparators. These integrated functions can help reduce the need for external components.
Security features include Arm TrustZone technology and ST’s STM32Trust framework, with secure boot, firmware updates, protected storage and tamper detection. The cryptographic engine supports current encryption algorithms and post-quantum cryptography libraries.
The development ecosystem includes hardware boards, motor-control and digital-power kits, software libraries and training resources. The series is supported by the STM32CubeMX2 development tool and the STM32Cube hardware abstraction layer. STMicroelectronics said the STM32G5 MCUs are already in production. The range offers Flash memory capacities from 64 KB to 512 KB, with package options from QFN32 to LQFP128. Prices start at US$1.0340 for orders of 10,000 units.
STMicroelectronics employs around 49,000 people and serves more than 200,000 customers worldwide. Its technologies are used in smart mobility, power and energy management, and connected devices. The company is targeting carbon neutrality across its direct and indirect emissions and selected value-chain activities, and aims to source 100% of its electricity from renewable sources by the end of 2027.
