Low-power 32-bit MCUs operate at up to 96MHz
Summary
STMicroelectronics STM32U3 series consists of ultra-low-power Arm Cortex-M33 32-bit microcontrollers with TrustZone and a Floating-Point Unit (FPU), operating at up to 96MHz. The single‑precision FPU supports all the Arm data‑processing instructions and data types. The Cortex-M33 core also implements a full set of digital signal processing (DSP) instructions and a memory protection unit (MPU) that enhances application security. Based on near-threshold voltage technology, the STM32U3 devices reduce the active consumption down to 10µA/MHz, resulting in far longer battery life for any application. The STM32U3 MCUs are ideal for battery-powered devices, automotive applications, industrial automation, consumer electronics, healthcare and medical devices, security and access control, smart grids and meters, and other ultra-low-power applications.