STMicroelectronics revealed on November 4, 2026, the STM32G5 series, its new mixed-signal microcontroller line aimed at two bottlenecks of the physical-AI era: more efficient power supplies for data centers and more precise motor control for robots. The Geneva announcement positions the family as the company's new mixed-signal flagship, succeeding the STM32G4.
The performance jump is the headline: an Arm Cortex-M33 core at 280 MHz scoring 1,136 CoreMark points, twice the STM32G4's 569 points at 170 MHz. ST says it is its fastest Cortex-M33 to date, with TrustZone to isolate code and sensitive assets.
For real-time work, the chip offers a 12-channel high-resolution timer with 111-picosecond resolution, a 12-bit analog-to-digital converter at 5 megasamples per second, a position encoder for motor control, a programmable logic array with 16 elements, a 20-nanosecond ultra-fast comparator, USB Full Speed and I3C support. Memory goes up to 512 KB of flash, with a dual-bank option for field firmware updates, 96 KB of data flash and ECC-protected SRAM.
In AI data centers, where rack power is heading toward 1 MW and the largest sites could exceed 2 GW of peak power by 2030, according to the release, the precise timer lets power supplies adapt dynamically to server load and keep up with higher switching frequencies from silicon carbide and gallium nitride designs. In humanoid robotics, where one hand can hold about 20 motors, the mix of performance, peripherals and fast response supports more precise, natural movement. The series also targets photovoltaic inverters, EV chargers, battery management systems, industrial drives and commercial drones.
Security includes TrustZone, an immutable root of trust for secure boot and firmware update, secure key storage, tamper detection and post-quantum cryptography (PQC) libraries. The series is in production now, in performance and high-resolution lines, with 64 KB to 512 KB of flash and packages from QFN32 to LQFP128, starting at US$1.0340 for orders of 10,000 units. Dual-core STM32G5D versions arrive in 2027. Launch boards include the NUCLEO-G564RE and the B-G564E-DPOW1 digital-power and B-G564E-MC1S motor-control discovery kits, supported by STM32CubeMX2 and HAL2. On the same day ST also announced the STM32H7P for the high-performance market, with a Neural-ART NPU — a complement to, not a replacement for, the G5 line.
STM32G5 in numbers
In short, the STM32G5 delivers 280 MHz, 1,136 CoreMark points, a 111-picosecond timer and up to 512 KB of flash — a ready base for the next generation of digital power supplies and robots.
Sources
Image credit: STMicroelectronics, via the official ST blog.
Transparency: this article was prepared with the assistance of artificial intelligence, based on cross-checking public posts on X and internet sources listed above. Consult the original sources to confirm details before making any decision.
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