STMicroelectronics STM32H747XIH6

Overview

STM32H747XIH6 from STMicroelectronics is a dual-core Arm® Cortex®-M7 (480 MHz) and Cortex®-M4 (240 MHz) microcontroller with 2 MB flash, 1 MB RAM (including 192 KB TCM), and integrated SMPS regulator. It features DSI host, MIPI D-PHY, JPEG codec, and dual CAN FD interfaces-designed for high-performance embedded vision, industrial HMI, and real-time control systems requiring concurrent processing and low-latency peripheral access.

For engineers reviewing the STM32H747XIH6 datasheet, STM32H747XIH6 pinout, STM32H747XIH6 application, or STM32H747XIH6 equivalent, key selection considerations include dual-core interprocessor communication (IPC), voltage scaling across six power ranges, DSI timing compliance (up to XGA), hardware-accelerated JPEG encoding/decoding, and SMPS regulator integration for direct VCORE supply.

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 and two AXI2-AHB bridges, supporting concurrent high-bandwidth data paths for CPU, DMA, and peripherals.

Dual-core operation relies on shared memory with hardware semaphore support and mailbox-based IPC. The M7 core includes double-precision FPU, 16 KB I-cache + 16 KB D-cache, and MPU; the M4 core integrates ART Accelerator for zero-wait-state execution from flash and external memories at up to 240 MHz.

Key Specifications

Pinout & Package

STM32H747XIH6 is packaged in UFBGA169 (7 × 7 mm, 0.5 mm pitch) with 169 solder balls. Pin functions are defined per ball position and support multiple alternate functions including GPIO, analog inputs, timer channels, and high-speed interfaces (DSI, FMC, Quad-SPI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H757XIT6, the STM32H747XIH6 trades cryptographic acceleration for lower cost and smaller UFBGA169 footprint; versus i.MX RT1176, it delivers tighter power-domain control and integrated SMPS at the expense of peak clock frequency-making it optimal for space-constrained, battery-aware industrial HMI designs.

Availability

STM32H747XIH6 is available at Aetrix Electronics and suitable for industrial HMI, motor control, edge vision, and secure gateway applications requiring stable component supply, long lifecycle support, and full production status through January 2026.

Supply support for STM32H747XIH6 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 with strong industrial and embedded market focus.

The STM32H7 series targets high-end real-time applications demanding dual-core concurrency, advanced graphics, and integrated power management-designed specifically for next-generation industrial automation, medical imaging, and smart infrastructure.

FAQ

What is the maximum operating frequency of each core in the STM32H747XIH6?

The Arm Cortex-M7 core operates at up to 480 MHz with double-precision FPU and L1 cache, delivering 1027 DMIPS. The Cortex-M4 core runs at up to 240 MHz with single-precision FPU and ART Accelerator, achieving 300 DMIPS. Both cores support independent voltage scaling across six configurable ranges to optimize performance versus power consumption.

Does the STM32H747XIH6 support hardware JPEG encoding and decoding?

Yes, the STM32H747XIH6 includes a dedicated hardware JPEG codec capable of full encode and decode acceleration for baseline JPEG format. It supports YUV422 input/output and processes 1080p frames in under 15 ms, significantly reducing CPU load compared to software-only implementations.

How does the integrated SMPS regulator function in the STM32H747XIH6?

The SMPS is an on-chip step-down DC-DC converter that directly supplies the VCORE domain. It requires two external 2.2 µF ceramic capacitors on VCAP pins and supports programmable output voltage (0.6–1.4 V) with dynamic voltage scaling. This eliminates the need for an external buck regulator in most designs, improving power efficiency and reducing board area.

What display interfaces are supported by the STM32H747XIH6?

The STM32H747XIH6 supports LCD-TFT controller (LTDC) for parallel RGB interfaces up to XGA resolution and a fully integrated MIPI DSI host with built-in D-PHY physical layer. The DSI interface supports one clock lane and up to four data lanes, enabling direct connection to low-pin-count high-resolution displays without external bridge ICs.