STMicroelectronics STM32U575CIU6Q

Overview

STM32U575CIU6Q from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, FPU, and 240 DMIPS performance at up to 160 MHz. It integrates 2 MB Flash (with ECC), 786 KB SRAM, dual 14-/12-bit ADCs, 2 DACs, 2 op-amps, CAN FD, USB Type-C®/PD controller, and Octo-SPI interfaces. Designed for battery-powered industrial sensors and secure edge nodes requiring long runtime and cryptographic integrity.

For engineers reviewing the STM32U575CIU6Q datasheet, STM32U575CIU6Q pinout, STM32U575CIU6Q application, or STM32U575CIU6Q equivalent, key selection criteria include its 160 MHz Cortex-M33 core with TrustZone, sub-µA Stop modes (e.g., 530 nA Standby with RTC), 2 MB Flash ECC support, hardware crypto accelerators (HASH, RNG, CORDIC), and UFQFPN48 package compatibility with space-constrained designs.

Technical Context

The STM32U575CIU6Q implements a dual-bank Flash architecture enabling read-while-write operation and supports TrustZone-enforced secure/non-secure world isolation for peripherals, memory, and I/Os. Its FlexPowerControl system enables autonomous low-power background operation via LPBAM, allowing DMA-driven peripheral activity down to Stop 2 mode without CPU intervention.

It features three PLLs - one for system clock (up to 160 MHz), one for USB/audio, and one for ADC - plus dual cache (8 KB ICACHE + 4 KB DCACHE) and ART Accelerator for zero-wait-state execution. Clock sources include 4–50 MHz HSE, 32 kHz LSE, and two autotrimmed internal oscillators (±0.25% accuracy).

Key Specifications

Pinout & Package

STM32U575CIU6Q uses the UFQFPN48 (7 × 7 mm) package with 0.5 mm pitch and exposed thermal pad. This compact, lead-free, ECOPACK2-compliant package supports high-density PCB layouts and efficient thermal dissipation for battery-operated applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power secure MCU applications.

Compared with STM32U585QII6Q, the STM32U575CIU6Q trades SRAM capacity and SMPS integration for USB-C PD controller and smaller UFQFPN48 footprint; versus RA4M3AFGB, it delivers superior security isolation, deeper low-power modes, and autonomous peripheral offload - critical for certified medical or utility-grade deployments.

Availability

STM32U575CIU6Q is available at Aetrix Electronics and suitable for industrial wireless sensor nodes, secure smart metering endpoints, portable medical diagnostic devices, and USB-C powered industrial gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32U575CIU6Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive semiconductors.

The STM32U5 series is ST's flagship ultra-low-power secure MCU line, engineered for energy-constrained edge devices demanding both Arm TrustZone security and sub-microamp power efficiency - targeting certified IoT, medical, and utility infrastructure applications.

FAQ

What is the maximum operating frequency and associated DMIPS rating of the STM32U575CIU6Q?

The STM32U575CIU6Q operates at up to 160 MHz with an Arm Cortex-M33 core delivering 240 DMIPS (Dhrystone 2.1). This performance is sustained with zero wait states thanks to the 8 KB instruction cache and ART Accelerator, even when executing from internal Flash or external Octo-SPI memory.

Does the STM32U575CIU6Q support hardware-accelerated cryptography beyond RNG and HASH?

Yes - in addition to the NIST SP800-90B compliant True Random Number Generator and HASH accelerator, the device supports secure boot via embedded Root Secure Services (RSS), secure firmware installation (SFI), and TF-M-based firmware upgrades. It also includes a dedicated UCPD controller for USB-C Power Delivery cryptographic policy enforcement.

How does the LPBAM feature reduce system-level power consumption in practical use?

LPBAM enables autonomous peripheral operation - for example, configuring ADC sampling, DMA transfer to memory, and timer-triggered wakeup - entirely within Stop 2 mode without CPU involvement. This eliminates repeated wake-up/sleep transitions, reducing average current by up to 40% in sensor logging applications compared to traditional interrupt-driven polling.

What are the key thermal and mechanical specifications of the UFQFPN48 package used by STM32U575CIU6Q?

The UFQFPN48 package measures 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. Its θ_JA is 40.3°C/W (JEDEC standard board), and θ_JC is 12.5°C/W. The ECOPACK2-compliant construction ensures RoHS compliance and robust reflow solderability for high-volume SMT assembly.