STMicroelectronics STM32H743VIT6

Overview

STM32H743VIT6 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-bank read-while-write capability, and integrated FPU for deterministic real-time control in motor drives and industrial HMI systems.

For engineers reviewing the STM32H743VIT6 datasheet, STM32H743VIT6 pinout, STM32H743VIT6 application, or STM32H743VIT6 equivalent, key selection criteria include its triple PLL clock architecture, 168 GPIOs with interrupt capability, 3× CAN FD interfaces, hardware JPEG codec, and support for external SDRAM/NOR via flexible memory controller.

Technical Context

The device implements a multi-domain power architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across high-performance, communication, and system-control subsystems. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, enabling concurrent high-bandwidth peripheral access without CPU contention.

It integrates four DMA controllers-including a high-speed MDMA with linked-list support-and supports deterministic execution via MPU, dual-core debug trace buffer, and sub-nanosecond resolution HRTIM for precision timing-critical applications such as digital power conversion and servo control.

Key Specifications

Pinout & Package

LQFP100 package: 100-pin quad flat pack, 0.5 mm pitch, exposed thermal pad, RoHS-compliant, JEDEC MO-137AC standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H753VIT6, the STM32H743VIT6 trades cryptographic acceleration for lower cost and identical real-time control capability; versus i.MX RT1176, it offers superior analog integration and deterministic low-latency peripherals but less peak CPU performance.

Availability

STM32H743VIT6 is available at Aetrix Electronics and suitable for industrial motor drives, embedded HMI panels, digital power supplies, and portable test equipment requiring stable component supply across extended product lifecycles.

Supply support for STM32H743VIT6 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 automotive-grade components.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich peripheral integration, and energy efficiency-especially in industrial automation, medical devices, and smart infrastructure.

FAQ

What is the maximum operating temperature range for STM32H743VIT6?

The STM32H743VIT6 is qualified for industrial operation from –40 °C to +125 °C ambient temperature. This rating applies to the LQFP100 package under specified thermal conditions per ST's datasheet Section 8.10, with derating required above 105 °C case temperature.

Does STM32H743VIT6 support external SDRAM, and what interface is used?

Yes, it supports external SDRAM up to 256 MB using the Flexible Memory Controller (FMC) with 16-bit data bus and synchronous burst mode. The FMC operates at up to 100 MHz and supports LPDDR/SDR/DDR1 protocols with configurable timing parameters per JEDEC standards.

How many independent CAN FD interfaces does STM32H743VIT6 provide?

The STM32H743VIT6 integrates two fully independent CAN FD controllers (FDCAN1 and FDCAN2), each supporting ISO 11898-1:2015 compliant bit rates up to 5 Mbps, programmable data phase arbitration, and dedicated message RAM with hardware filtering.

Is the STM32H743VIT6 pin-compatible with other STM32H743 variants in the same package?

Yes, all STM32H743xI/G parts in LQFP100 (e.g., STM32H743VIT6, STM32H743VIH6) share identical pinouts and electrical characteristics. Differences are limited to flash/RAM size, temperature grade, and packaging (e.g., wettable flank vs. standard LQFP), confirmed in ST's Device Summary Table 1.