STMicroelectronics STM32U585VIT6Q

Overview

STM32U585VIT6Q from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, FPU, and 240 DMIPS performance. It integrates 2 MB Flash (with ECC), 786 KB SRAM, hardware crypto accelerators (AES, PKA, HASH), and supports LPBAM autonomous peripheral operation down to Stop 2 mode. It targets secure, battery-powered IoT edge nodes requiring real-time sensing, encrypted firmware updates, and long-term VBAT-backed RTC operation.

For engineers reviewing the STM32U585VIT6Q datasheet, STM32U585VIT6Q pinout, STM32U585VIT6Q application, or STM32U585VIT6Q equivalent, key selection criteria include TrustZone-enforced memory isolation, ULPMark™-CP score of 450, 160 nA Shutdown mode current, and dual Octo-SPI interfaces for secure external code execution.

Technical Context

The STM32U585VIT6Q implements a dual-bank Arm Cortex-M33 core with MPU, DSP extensions, and single-precision FPU, coupled with ART Accelerator delivering zero-wait-state execution at up to 160 MHz. Its FlexPowerControl architecture enables granular power gating across domains, including independent supply for 14 I/Os down to 1.08 V and dedicated low-power timers functional in Stop modes.

Security is architected via Arm TrustZone®, securable peripherals, Root of Trust with HDP and unique boot entry, and PSA Level 3/SESIP3-certified assurance. Cryptographic acceleration includes two AES coprocessors (one DPA-resistant), public-key accelerator, on-the-fly Octo-SPI decryption (OTFDEC), and NIST SP800-90B-compliant TRNG.

Key Specifications

Pinout & Package

STM32U585VIT6Q is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for space-constrained portable and wearable designs. The package supports reflow soldering and provides thermal pad for enhanced heat dissipation under sustained 160 MHz operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L562VEJ6, the STM32U585VIT6Q delivers 4× more Flash, certified secure boot, and Octo-SPI decryption - essential for field-upgradable, tamper-evident firmware. Against LPC55S69JBD100, it offers integrated PSA Level 3 root of trust and hardware OTFDEC, reducing bill-of-materials and certification effort.

Availability

STM32U585VIT6Q is available at Aetrix Electronics and suitable for smart utility meters, industrial wireless sensor nodes, secure medical wearables, and USB-C power delivery hubs requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32U585VIT6Q 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, specializing in microcontrollers, power management, and automotive-grade ICs with strong focus on energy efficiency and security.

The STM32U5 series is ST's flagship ultra-low-power MCU line designed specifically for secure, battery-operated IoT endpoints demanding PSA-certified trust, sub-µA sleep currents, and hardware-accelerated cryptography - targeting medical, industrial, and smart infrastructure markets.

FAQ

What is the maximum operating temperature range for STM32U585VIT6Q?

The STM32U585VIT6Q is rated for –40 °C to +125 °C ambient operation, validated per JEDEC JESD22-A108. This extended range supports deployment in automotive under-hood modules, industrial motor drives, and outdoor utility infrastructure where thermal stress exceeds standard commercial limits.

Does STM32U585VIT6Q support hardware-based secure boot from external memory?

Yes - the device supports secure boot from external Octo-SPI memory via its On-the-Fly Decryption Engine (OTFDEC), which decrypts AES-128/256-encrypted firmware using keys derived from the Hardware Unique Key (HUK). Boot authentication is enforced by the ROM-based secure bootloader before any user code executes.

How many independent power domains does the STM32U585VIT6Q support?

The STM32U585VIT6Q features three independent power domains: VDD (core/SRAM), VDDA (analog), and VDDIO2 (I/O bank 2), each with dedicated regulators and voltage monitoring. This enables selective domain shutdown, noise isolation between analog and digital sections, and flexible I/O voltage configuration down to 1.08 V.

Can the LPBAM feature operate without CPU intervention in Stop 2 mode?

Yes - LPBAM enables fully autonomous peripheral-to-peripheral data movement (e.g., ADC sampling → DMA transfer → crypto acceleration → SRAM storage) while the CPU remains in Stop 2 mode. All required peripherals, clocks, and DMA controllers retain power and functionality, eliminating wake-up latency and CPU overhead.