STMicroelectronics STM32H747AII6TR

Overview

STM32H747AII6TR from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (up to 480 MHz) and Cortex®-M4 (up to 240 MHz) microcontroller with 2 MB flash, 1 MB RAM, integrated SMPS regulator, DSI host interface, and 168 GPIOs. It supports real-time deterministic processing in industrial PLCs, high-resolution graphics in HMI panels, and secure connectivity in edge gateways.

For engineers reviewing the STM32H747AII6TR datasheet, STM32H747AII6TR pinout, STM32H747AII6TR application, or STM32H747AII6TR equivalent, key selection factors include dual-core asymmetric execution capability, on-chip SMPS for power efficiency, MIPI D-PHY integration for display interfaces, and hardware JPEG codec for embedded vision preprocessing.

Technical Context

The device implements three independent power domains (D1/D2/D3) enabling selective clock gating and domain shutdown. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges and two AXI2-AHB bridges, supporting concurrent high-bandwidth peripheral access without CPU contention.

Dual-core operation is coordinated via shared memory with hardware semaphores and interrupt forwarding. The M7 core features double-precision FPU, 16 KB I-cache/16 KB D-cache, and MPU; the M4 core includes single-precision FPU, ART Accelerator for zero-wait-state flash execution, and separate MPU - both cores support TrustZone security extensions.

Key Specifications

Pinout & Package

STM32H747AII6TR uses UFBGA169 package (7 × 7 mm, 0.5 mm pitch) with 168 user I/O pins plus power/ground terminals. Pin functions are defined across five voltage domains (VDD/VSS, VDDA/VSSA, VREF+, VCAP, VBAT) and support multiple alternate functions per pin including DSI lanes, FMC signals, and Quad-SPI.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Arm Cortex-M7/M4 microcontroller applications.

Compared with STM32H757IIT6, the STM32H747AII6TR trades cryptographic acceleration for lower cost and smaller UFBGA169 footprint; versus i.MX RT1176AVM8B, it delivers superior analog subsystem integration and on-die power regulation at the expense of peak M7 clock speed.

Availability

STM32H747AII6TR is available at Aetrix Electronics and suitable for industrial HMIs, edge gateways, medical imaging subsystems, and automotive ADAS sensor fusion requiring stable component supply across multi-year production cycles.

Supply support for STM32H747AII6TR 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 analog components for industrial, automotive, and consumer markets.

The STM32H7 series targets high-performance embedded applications demanding real-time determinism, rich graphics, advanced connectivity, and energy efficiency - exemplified by the dual-core asymmetric architecture and integrated SMPS in the STM32H747AII6TR.

FAQ

What is the maximum operating frequency of each core in the STM32H747AII6TR?

The Arm Cortex-M7 core operates at up to 480 MHz with double-precision FPU and L1 cache; the Cortex-M4 core runs at up to 240 MHz with single-precision FPU and ART Accelerator. Both frequencies are achievable under full voltage scaling (Range 0) with external 8–16 MHz crystal and PLL configuration per DS12930 Rev 3 Section 3.7.1.

Does the STM32H747AII6TR support TrustZone security features?

Yes, the STM32H747AII6TR implements Arm TrustZone for Cortex-M, enabling hardware-isolated secure and non-secure worlds. This allows secure boot, encrypted firmware updates, and protected key storage using the embedded ROP and PC-ROP mechanisms documented in Section 3.5.2 of the datasheet.

How many power domains does the STM32H747AII6TR have, and what peripherals are assigned to each?

The device has three independent power domains: D1 (high-performance, hosts Cortex-M7 and LTDC), D2 (communication/peripherals, hosts Cortex-M4, USB, Ethernet, CAN), and D3 (low-power management, hosts RTC, LSE, and reset logic). Domain isolation enables selective power gating to reduce active current consumption by up to 65% in partial-stop modes.

What display interfaces are supported, and what is the maximum resolution?

The STM32H747AII6TR supports LCD-TFT controller (LTDC) up to XGA resolution (1024×768) and MIPI DSI host with integrated D-PHY for driving high-speed serial displays. DSI supports 1/2/3/4-lane configurations with data rates up to 1.5 Gbps per lane, enabling WQXGA (2560×1600) with external timing controller.