⚡ STMicro STM32G5: 280 MHz Cortex-M33 for Power

STMicroelectronics has introduced the STM32G5 series, a family of mixed-signal microcontrollers operating at 280 MHz. These Arm Cortex-M33 based MCUs target industrial power supplies, photovoltaic inverters, EV chargers, robotics, and motor control systems. The new family doubles the performance of the STM32G4 series launched in 2021.

The STM32G5 features up to 512KB of flash memory and 112KB of SRAM with Error Correction Code. It includes an 111 ps high-resolution timer with up to 12 PWM outputs on certain variants. Analog capabilities are supported by 12-bit ADCs capable of sampling at up to 5 MSPS.

Additional peripherals include position encoder interfaces and a 16-element programmable logic array. Mathematical accelerators such as CORDIC and FMAC are integrated to handle complex calculations. The core supports single-precision floating-point operations, DSP instructions, and a Memory Protection Unit.

Security features encompass Arm TrustZone, secure boot, and support for post-quantum cryptography. The architecture includes an 8 KB instruction cache and a 4 KB data cache on STM32G55x and STM32G56x models. A 20 KB or 32 KB CCM-SRAM routine booster is also available.