STMicroelectronics STM32H573RIT6

Overview

STM32H573RIT6 from STMicroelectronics is a high-security, high-performance Arm® Cortex®-M33 32-bit microcontroller with TrustZone®, FPU, and 250 MHz max clock speed. It integrates 2 Mbyte flash (ECC, dual-bank RWW), 640 Kbyte SRAM (including ECC-protected SRAM2/SRAM3), cryptographic accelerators (AES, PKA, HASH, RNG), and advanced peripherals including two FDCAN, USB Type-C/USB PD, Ethernet MAC, and Octo-SPI with on-the-fly decryption - deployed in industrial edge controllers requiring secure firmware updates and real-time deterministic control.

For engineers reviewing the STM32H573RIT6 datasheet, STM32H573RIT6 pinout, STM32H573RIT6 application, or STM32H573RIT6 equivalent, key selection criteria include TrustZone-enforced memory isolation, 250 MHz deterministic execution with ART cache, hardware-accelerated crypto for PSA Level 3 compliance, and LQFP64 package compatibility with legacy STM32H7 footprint constraints.

Technical Context

The STM32H573RIT6 implements Armv8-M mainline security with configurable SAU regions and preconfigured immutable root of trust (ST-iROT), enabling secure boot via HDP-protected entry and SFI-based firmware installation. Its dual-core-aware GPDMA controllers offload CPU during concurrent crypto and sensor data acquisition.

It features dual 12-bit ADCs (5 Msps), CORDIC/FMAC math accelerators for motor control loop computation, and a flexible external memory controller supporting SDRAM, PSRAM, and Octo-SPI with hardware decryption - all managed under TrustZone-aware RCC and GTZC peripheral protection.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad - compatible with standard reflow profiles and legacy STM32H7 layout footprints while enabling full peripheral access in space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-security MCU applications.

Compared with STM32H573RIT6, the STM32H753VIT6 sacrifices hardware security for broader ecosystem maturity, while the i.MX RT1176 demands PCB redesign and offers no direct replacement for Octo-SPI decryption or USB-C PD control - making the H573RIT6 uniquely fit for compact, certified, encrypted edge nodes.

Availability

STM32H573RIT6 is available at Aetrix Electronics and suitable for industrial PLC edge nodes, secure IoT gateways, medical diagnostic handhelds, and EV charging station controllers requiring stable component supply and long-term lifecycle assurance.

Supply support for STM32H573RIT6 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 ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32H5 series is ST's flagship high-security MCU line built on Cortex-M33 with TrustZone, targeting PSA-certified applications in industrial control, energy infrastructure, and medical devices where hardware-rooted security is non-negotiable.

FAQ

What is the maximum operating frequency and associated performance metric for the STM32H573RIT6?

The STM32H573RIT6 operates at up to 250 MHz with an Arm Cortex-M33 core, delivering 375 DMIPS (Dhrystone 2.1) and 1023 CoreMark®. This performance is sustained with zero-wait-state execution from flash thanks to the 8-Kbyte instruction cache (ART Accelerator), enabling deterministic real-time response in motor control and industrial automation.

Does the STM32H573RIT6 support hardware-accelerated cryptography, and which algorithms are implemented?

Yes - it integrates two AES coprocessors (one DPA-resistant), a public key accelerator (PKA), HASH engine, and NIST SP800-90B compliant true random number generator (TRNG). These accelerate AES-128/256, RSA/ECC, SHA-256, and secure key derivation - all validated under SESIP3 and PSA Level 3 certification for secure boot and OTA updates.

What package type and pin count does the STM32H573RIT6 use, and is it footprint-compatible with other STM32 lines?

The STM32H573RIT6 uses an LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64 pins. While not pin-to-pin compatible with STM32H7 LQFP64 variants due to differing peripheral mappings and TrustZone-specific signals, its mechanical footprint matches - allowing reuse of PCB keep-out and thermal pad layout in migration designs.

How does the STM32H573RIT6 handle secure firmware updates in the field?

It implements Secure Firmware Installation (SFI) with authenticated, signed firmware images verified by the immutable root of trust (ST-iROT) before flash write. Combined with on-the-fly Octo-SPI decryption and hardware unique key (HUK)-based encryption, this ensures end-to-end integrity and confidentiality - meeting PSA Certified Level 3 requirements for remote updates in untrusted environments.