STMicroelectronics STM32H743VIH6TR

Overview

STM32H743VIH6TR 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), and dual-domain power architecture (D1/D2/D3). It integrates 3× ADCs (16-bit, 3.6 MSPS), 2× DACs, 2× op-amps (7.3 MHz), and hardware JPEG codec, targeting high-performance industrial HMI and real-time motor control systems.

For engineers reviewing the STM32H743VIH6TR datasheet, STM32H743VIH6TR pinout, STM32H743VIH6TR application, or STM32H743VIH6TR equivalent, key selection factors include its triple PLL clock system with fractional mode, 168 GPIOs with interrupt capability, 2× CAN FD interfaces, and support for external SDRAM/NOR/NAND via flexible memory controller - critical for deterministic real-time execution and multi-peripheral concurrency.

Technical Context

The device implements a 3-bus interconnect matrix (1 AXI + 2 AHB) with 5 AHB2-APB and 2 AXI2-AHB bridges, enabling concurrent access to peripherals without bus contention. Its memory subsystem includes separate ITCM (64 KB) and DTCM (128 KB) for time-critical code/data, plus up to 864 KB user SRAM and dual-mode Quad-SPI running at 133 MHz.

Power management uses three independent domains (D1/D2/D3), each with configurable voltage scaling (6 ranges), dedicated LDO regulator, and backup domain (~0.9 V). Low-power modes include Standby at 2.95 µA (RTC/LSE active), supported by VBAT charging capability and sub-second RTC accuracy.

Key Specifications

Pinout & Package

STM32H743VIH6TR is housed in a 100-pin TFBGA package (8 × 8 mm, 0.8 mm pitch) with ECOPACK2 compliance. The ball map supports full peripheral multiplexing across three power domains and includes dedicated VCAP pins for internal regulator stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIH6TR, STM32H753VIH6 adds security IP without sacrificing performance or footprint, while i.MX RT1176DVMAA trades integrated analog/graphics capability for higher CPU throughput and dual-core flexibility - making the H743 optimal for cost-sensitive, graphics- and analog-rich embedded systems.

Availability

STM32H743VIH6TR is available at Aetrix Electronics and suitable for industrial HMI panels, real-time motor drives, medical imaging edge nodes, and automated test equipment requiring stable component supply across extended production lifecycles.

Supply support for STM32H743VIH6TR 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, sensors, and automotive ICs with vertical manufacturing and broad industrial qualification.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich peripheral integration, and low-latency graphics - designed specifically for industrial automation, medical devices, and advanced human-machine interfaces.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32H743VIH6TR achieves 480 MHz via its main PLL configured with fractional-N synthesis, fed by either the 4–48 MHz HSE crystal or 64 MHz HSI oscillator. This frequency is sustained across all power domains under 1.2 V core supply and ambient temperatures up to 105°C, validated per DS12110 Rev 11 Section 6.3.10.

Does this MCU support external SDRAM, and what interface is used?

Yes, STM32H743VIH6TR supports external SDRAM up to 256 MB using its Flexible Memory Controller (FMC) with 32-bit data bus and synchronous clocking up to 100 MHz. The FMC also handles PSRAM, NOR/NAND flash, and SRAM, with dedicated control signals routed to specific TFBGA100 balls per Section 8.3 of the datasheet.

How many independent ADCs are integrated, and what is their combined sampling capability?

The device integrates three independent 16-bit ADCs with up to 36 total channels and a combined sampling rate of 3.6 MSPS (1.2 MSPS per ADC in interleaved mode). Each ADC has its own voltage reference input (VREF+), calibration registers, and hardware oversampling support - confirmed in Section 3.17 and Table 138 of DS12110 Rev 11.

Is SWD debugging supported, and which pins are required?

Yes, Serial Wire Debug (SWD) is fully supported using PA13 (SWDIO) and PA14 (SWCLK) on the TFBGA100 package. These pins are dedicated to SWD by default and do not require remapping; no JTAG pins are needed for standard debug and programming operations per Section 3.43 of the datasheet.