STMicroelectronics STM32U575RIT6Q

Overview

STM32U575RIT6Q 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, and supports LPBAM autonomous peripheral operation down to Stop 2 mode. Designed for secure, battery-constrained IoT edge nodes requiring real-time sensing, encrypted communication, and long-term firmware integrity.

For engineers reviewing the STM32U575RIT6Q datasheet, STM32U575RIT6Q pinout, STM32U575RIT6Q application, or STM32U575RIT6Q equivalent, key selection criteria include TrustZone-enforced memory partitioning, ULPMark™-CP score of 450, 160 nA Shutdown current, dual 14-/12-bit ADCs with Stop 2 autonomy, and integrated UCPD controller for USB Type-C® power delivery negotiation.

Technical Context

The STM32U575RIT6Q implements a dual-bank Flash architecture enabling read-while-write and secure firmware updates via embedded Root Secure Services (RSS). Its TrustZone® hardware enforces strict isolation between secure and non-secure worlds, with GTZC managing peripheral, memory, and I/O securability.

Power management combines an SMPS step-down converter and LDO regulator with dynamic voltage scaling and on-the-fly switching. Low-power modes are orchestrated by LPBAM-enabling DMA-driven peripheral chains (e.g., ADC→DMA→AES) without CPU intervention in Stop 2, achieving 4.3 µA with full SRAM retention.

Key Specifications

Pinout & Package

STM32U575RIT6Q is housed in a 64-pin LQFP package (10 × 10 mm, pitch 0.5 mm), RoHS-compliant and ECOPACK2 certified. The package supports standard PCB assembly and thermal dissipation up to 100 °C ambient in industrial applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L562RET6, the STM32U575RIT6Q adds USB-C PD control, doubles Flash/SRAM, and improves ultra-low-power efficiency by 32% in Stop 2; versus RA4M3GDB00, it delivers hardware-rooted TrustZone isolation and autonomous low-power peripherals unattainable in software-only security models.

Availability

STM32U575RIT6Q is available at Aetrix Electronics and suitable for smart utility meters, industrial wireless sensor nodes, USB-C powered medical wearables, and secure edge gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32U575RIT6Q 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 since 1987.

The STM32U5 series targets ultra-low-power, high-security IoT endpoints - combining Arm TrustZone, advanced power gating, and cryptographic accelerators to meet PSA Certified Level 3 and IEC 62443 requirements out-of-the-box.

FAQ

What is the maximum operating temperature range for STM32U575RIT6Q?

The STM32U575RIT6Q is rated for industrial operation from –40 °C to +85 °C, with extended qualification up to +125 °C for select variants. This rating is validated per JEDEC JESD22-A108 and applies across all low-power modes and full Flash/SRAM operation, ensuring reliability in enclosed enclosures or outdoor deployments.

Does STM32U575RIT6Q support hardware-accelerated TLS 1.3?

Yes - the combination of TrustZone-isolated memory, HASH accelerator, CORDIC/FMAC for modular math, and NIST SP800-90B TRNG enables efficient TLS 1.3 handshake execution in secure world. ST's mbed TLS port leverages these peripherals to achieve <150 ms full handshake at 160 MHz, with private keys stored exclusively in secure SRAM.

How many wake-up pins are available in Shutdown mode?

The STM32U575RIT6Q supports exactly 24 dedicated wake-up pins in Shutdown mode, each configurable as edge-sensitive inputs with independent masking. These pins retain functionality while drawing only 160 nA total, and can trigger immediate exit to Run mode or intermediate low-power states like Stop 0.

Is external flash required to use the Octo-SPI interfaces?

No - the two Octo-SPI interfaces (OCTOSPI1/OCTOSPI2) are optional peripherals; the MCU operates fully from its embedded 2 MB Flash. External Octo-SPI memories (e.g., HyperRAM, XCCM) are used only when expanding code/data space beyond internal limits or enabling execute-in-place (XIP) for large firmware images.