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STM32U375RET6

STMicroelectronics
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone MCU 96 MHz 512 Kbytes of Flash
Active160 in stock
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Overview

The STM32U375RET6 is an STMicroelectronics STM32U3-series microcontroller built around an Arm Cortex-M33 core with TrustZone support. It is aimed at designs that need strong low-power behavior while still providing enough compute and memory for connected embedded applications. The 512 Kbytes of Flash makes it suitable for firmware with networking stacks, protocol layers, or richer control logic.

Why Choose This Part

This part combines an Arm Cortex-M33 core, TrustZone support, and a low-power MCU profile, which is a strong mix for secure always-on or duty-cycled designs. The 96 MHz class performance and on-chip Flash give enough headroom for application code plus middleware without moving to a larger device. For engineers, that usually means simpler power budgeting and a more straightforward security architecture.

Applications

Battery-powered sensor nodes
Useful for devices that spend most of their time asleep and wake periodically to sample sensors and transmit data.
Smart home controllers
A good fit for mains- or battery-powered control nodes that need secure, low-power operation.
Industrial monitoring endpoints
Suitable for compact data-logging or condition-monitoring nodes where low energy use matters.
Portable instrumentation
Can serve as the main controller in handheld or field instruments that need an FPU and modern security features.
Connected embedded control
Works well in IoT products that combine sensor processing, communications, and secure firmware partitioning.

Getting Started

Use ST's STM32Cube ecosystem to start with the device family, including STM32CubeIDE and STM32CubeMX for pinout, clock, and peripheral setup. For prototyping and debug, look for STM32 Nucleo boards or an ST-LINK-based development setup that supports STM32U3 devices, then validate power modes early because low-power behavior is often the main design constraint. If you are porting an existing STM32 project, check compiler settings, linker memory layout, and TrustZone partitioning before first hardware bring-up.

Dev Boards

Development boards and breakout modules featuring the STM32U375RET6 or compatible chips — ready to use for prototyping.

NUCLEO-U3C5ZI-Q STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-144 development board with STM32U3C5ZI MCU, SMPS, supports Arduino and ST m
Mouser 126 in stock

Also Consider

STM32L552RET6 STMicroelectronics - A strong low-power alternative with Cortex-M33 and TrustZone support for designs that do not need the same U3 family target.
STM32G474RET6 STMicroelectronics - Worth considering when control performance and mixed-signal peripheral capability matter more than ultra-low-power operation.
ATSAME54P20A-AU MCHPMicrochip Technology - An Arm Cortex-M4F alternative often used when you want a capable MCU with a different vendor ecosystem and peripheral mix.