STMicroelectronics STM32H747XGH6

Overview

STM32H747XGH6 from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (up to 480 MHz) and Cortex®-M4 (up to 240 MHz) microcontroller with double-precision FPU, 2 MB flash, 1 MB RAM (including 192 KB TCM), and integrated SMPS regulator. It supports DSI display interface, Ethernet MAC, dual CAN FD, and hardware JPEG codec - deployed in industrial HMI, medical imaging gateways, and real-time motor control systems.

For engineers reviewing the STM32H747XGH6 datasheet, STM32H747XGH6 pinout, STM32H747XGH6 application, or STM32H747XGH6 equivalent, key selection criteria include dual-core asymmetric execution capability, 168 GPIOs with interrupt support, voltage scaling across 6 ranges, 2.95 µA standby current, and UFBGA169 package compatibility with high-density PCB layouts.

Technical Context

The device implements three independent power domains (D1/D2/D3) enabling selective clock gating and domain shutdown for fine-grained power management. Its interconnect architecture includes one AXI and two AHB bus matrices with five AHB2-APB 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 mailbox registers; the M7 core handles compute-intensive tasks (e.g., JPEG decode, FFT), while the M4 executes real-time control loops (e.g., PWM timing, ADC sampling) with deterministic latency under ART Accelerator-enabled flash execution.

Key Specifications

Pinout & Package

UFBGA169 package (7 × 7 mm, 0.65 mm ball pitch) with 168 functional I/O balls and dedicated power/ground balls. Pinout validated per STMicroelectronics DS12930 Rev 3, Section 5 (Pinout, pin description and alternate functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H747XGH6, STM32H757IIT6 trades package compactness and integrated SMPS for pin-compatible legacy layout support, while i.MX RT1176DVMAAR shifts focus to raw M7 compute at the expense of analog integration and display subsystems - making STM32H747XGH6 optimal for space-constrained, mixed-signal, graphics-rich embedded systems.

Availability

STM32H747XGH6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging edge nodes, automotive camera hubs, and energy monitoring gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32H747XGH6 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, MEMS, and automotive-grade components since 1987.

The STM32H7 series targets high-performance embedded applications demanding real-time determinism, rich connectivity, and advanced graphics - specifically engineered for industrial automation, medical devices, and automotive infotainment with functional safety readiness.

FAQ

What is the maximum operating frequency of each core in the STM32H747XGH6?

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 simultaneously when powered by the SMPS regulator and configured with appropriate voltage scaling (Range 0 or 1).

Does the STM32H747XGH6 support hardware-accelerated graphics rendering?

Yes - it integrates the Chrom-ART Accelerator (DMA2D) for 2D graphics composition and the LCD-TFT controller supporting XGA resolution. These blocks offload pixel blending, image rotation, and layer mixing from the CPU, reducing GUI rendering latency by up to 70% in Qt-based applications.

How does the SMPS regulator improve power efficiency compared to traditional LDO-only designs?

The integrated SMPS step-down converter achieves >85% efficiency at 200 mA load (vs ~50% for LDOs), reducing heat dissipation and extending battery life in portable applications. It directly supplies VCORE and can be dynamically enabled/disabled alongside the LDO to optimize efficiency across active/idle states.

Can the STM32H747XGH6 boot from external Quad-SPI flash memory?

Yes - the device supports XIP (execute-in-place) from Quad-SPI memory via its dedicated QUADSPI interface, which operates up to 133 MHz. Boot mode configuration (via BOOT pins) allows direct execution from external flash without copying code to internal RAM, conserving SRAM for data buffers.