STMicroelectronics STM32H562AII6

Overview

STM32H562AII6 from STMicroelectronics is a high-security, high-performance Arm® Cortex®-M33 32-bit microcontroller with TrustZone®, FPU, and 250 MHz operation delivering 375 DMIPS. It integrates 2 Mbyte flash with ECC, 640 Kbyte SRAM (including ECC-protected SRAM2/SRAM3), CORDIC/FMAC math accelerators, dual FDCAN, USB Type-C®/PD controller, and hardware crypto engines (HASH, PKA, RNG). It targets secure industrial control, IoT edge nodes, and smart metering systems requiring certified firmware integrity and real-time deterministic response.

For engineers reviewing the STM32H562AII6 datasheet, STM32H562AII6 pinout, STM32H562AII6 application, or STM32H562AII6 equivalent, key selection criteria include TrustZone-enforced peripheral isolation, dual-bank read-while-write flash for seamless OTA updates, 1.71–3.6 V supply range with SMPS support, and verified 5 Msps ADC performance in 12-bit mode.

Technical Context

The device implements Armv8-M mainline security with configurable SAU regions and GTZC-managed memory/peripheral partitioning. Its dual GPDMA controllers offload CPU for concurrent data movement across peripherals including Octo-SPI, SDMMC, and Ethernet MAC.

ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to eliminate wait states during flash execution and enable deterministic timing for real-time tasks. The CORDIC coprocessor accelerates trigonometric computations, while FMAC supports real-time FIR/IIR filtering without CPU intervention.

Key Specifications

Pinout & Package

STM32H562AII6 uses a 176-pin LQFP package (24 × 24 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per STMicroelectronics DS14258 Rev 6, Section 4.1–4.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H563ZIT6, STM32H562AII6 reduces pin count and eliminates redundant PHYs for cost-sensitive FDCAN/USB FS gateway designs; versus i.MX RT1189, it delivers tighter TrustZone enforcement, lower static power, and smaller footprint for certified secure control without graphics overhead.

Availability

STM32H562AII6 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32H562AII6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32H5 series is designed for high-assurance embedded applications demanding PSA Certified Level 3 security, real-time determinism, and extended industrial temperature operation (–40°C to +125°C).

FAQ

What is the maximum operating frequency and corresponding DMIPS rating?

The STM32H562AII6 operates at up to 250 MHz with an ART Accelerator and achieves 375 DMIPS (Dhrystone 2.1) - measured with zero-wait-state execution from flash memory using the 8-Kbyte instruction cache. This performance is sustained across the full industrial temperature range (–40°C to +125°C) under specified voltage conditions (2.7–3.6 V).

Does STM32H562AII6 support secure boot with cryptographic verification?

Yes. It implements Secure Firmware Installation (SFI) using hardware-accelerated ECDSA signature verification and HASH computation. Boot firmware images must be signed with a private key; the public key is stored in OTP. Verification occurs before code execution, enforced by TrustZone and GTZC, meeting PSA Certified Level 3 requirements.

What are the supported low-power modes and their typical current consumption?

It supports Sleep, Stop, and Standby modes. In Standby mode with RTC and 32 backup registers active, typical current is 1.4 µA at 25°C (VDD = 3.3 V). Stop mode with SRAM retention draws ~2.5 µA. All modes retain TrustZone configuration and secure context, enabling rapid, authenticated wake-up.

Can the Octo-SPI interface connect to external PSRAM or HyperRAM?

Yes. The Octo-SPI interface supports x1/x2/x4/x8 configurations and is qualified for serial PSRAM (e.g., AP Memory APS62XXX), HyperRAM (e.g., Cypress/Infineon HYPERBUS), and serial NOR/NAND. Timing parameters are programmable per device datasheet, and the interface includes built-in dummy cycle insertion and latency compensation.