STMicroelectronics STM32H743VIH6

Overview

STM32H743VIH6 from STMicroelectronics is a 32-bit Arm® Cortex®-M7 microcontroller operating at up to 480 MHz, featuring 2 MB flash, 1 MB RAM (including 192 KB TCM), dual CAN FD interfaces, and hardware JPEG codec. It integrates LCD-TFT controller, Chrom-ART accelerator, and high-resolution timer for real-time industrial HMI and motor control applications.

For engineers reviewing the STM32H743VIH6 datasheet, STM32H743VIH6 pinout, STM32H743VIH6 application, or STM32H743VIH6 equivalent, key selection criteria include dual-domain power management (D1/D2/D3), 16-bit ADC resolution at 3.6 MSPS, Quad-SPI interface up to 133 MHz, and TFBGA100 package compatibility with high-density PCB layouts.

Technical Context

The device implements a triple-domain power architecture (D1 high-performance, D2 communication/timers, D3 reset/clock/PM) with independent clock gating and voltage scaling across six ranges. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, enabling concurrent high-bandwidth peripheral access.

Three PLLs support fractional mode: one system clock PLL (up to 480 MHz), plus two kernel-clock PLLs for flexible peripheral clocking. The memory subsystem includes dual-mode Quad-SPI (133 MHz), FMC supporting SDRAM/NOR/NAND (100 MHz sync), and CRC calculation unit for firmware integrity verification.

Key Specifications

Pinout & Package

STM32H743VIH6 uses a 100-pin TFBGA package (8 × 8 mm, 0.8 mm pitch) with 168 GPIOs (100 usable I/Os in this variant), supporting multiple alternate functions per pin including FMC, Quad-SPI, SDMMC, and analog inputs. Power supply pins include VDD/VSS (core), VDDA/VSSA (analog), VCAP (10 µF external capacitor), and dedicated USB 3.3 V regulator input.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIH6, the H753VIH6 delivers hardware crypto acceleration essential for zero-touch provisioning, while the H743VIT6 trades TFBGA density for LQFP manufacturability-neither offers functional supersetting, making VIH6 optimal for cost-sensitive, space-constrained industrial HMI and motor control.

Availability

STM32H743VIH6 is available at Aetrix Electronics and suitable for industrial HMI, real-time motor control, edge vision nodes, and secure industrial gateways requiring stable component supply across extended product lifecycles.

Supply support for STM32H743VIH6 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, specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich peripheral integration, and energy efficiency-designed specifically for industrial automation, advanced HMI, and AI-at-the-edge systems.

FAQ

What is the maximum operating frequency of the STM32H743VIH6 core?

The STM32H743VIH6 features an Arm Cortex-M7 core rated for up to 480 MHz operation, validated under full temperature and voltage range with all caches enabled. This frequency is achieved using the internal PLL with HSE or HSI as source, and requires proper VCAP capacitor placement and PCB layout for stable high-speed switching.

Does STM32H743VIH6 support external SDRAM?

Yes, STM32H743VIH6 supports external SDRAM through its Flexible Memory Controller (FMC), which handles up to 32-bit data bus width and clock speeds up to 100 MHz in synchronous mode. It supports standard SDRAM parts (e.g., ISSI IS42S16400J) with configurable timing parameters for setup/hold and refresh cycles.

How many ADC channels are available and what is their resolution?

The STM32H743VIH6 integrates three independent 16-bit analog-to-digital converters, supporting up to 36 total channels (including internal sensors). Each ADC achieves up to 3.6 MSPS sampling rate with hardware oversampling and digital filtering, and supports simultaneous sampling across multiple converters for motor current reconstruction.

What debug interfaces does STM32H743VIH6 provide?

STM32H743VIH6 provides both SWD (Serial Wire Debug) and JTAG interfaces for full-featured debugging, including breakpoints, watchpoints, and real-time trace via its 4 KB embedded trace buffer. SWD is recommended for production programming due to its 2-pin footprint; JTAG remains available for complex multi-core debug scenarios.