STMicroelectronics STM32H743IIK6TR

Overview

STM32H743IIK6TR 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 triple PLLs with fractional mode, 3× ADCs (16-bit, 3.6 MSPS), and LCD-TFT controller for XGA resolution-used in industrial HMI, motor control gateways, and edge AI inference nodes.

For engineers reviewing the STM32H743IIK6TR datasheet, STM32H743IIK6TR pinout, STM32H743IIK6TR application, or STM32H743IIK6TR equivalent, key selection criteria include D3 power domain isolation, VBAT-backed RTC + SRAM retention, dual-domain clock gating (D1/D2/D3), and MDIO/SDMMC/Ethernet MAC coexistence in a single die.

Technical Context

The STM32H743IIK6TR implements a three-domain power architecture (D1 high-performance, D2 comms/timers, D3 reset/clock/PM) with independent voltage scaling across six ranges. Its interconnect matrix comprises one AXI and two AHB bus matrices, bridged via five AHB2-APB and two AXI2-AHB bridges.

It features four DMA controllers-including one high-speed MDMA with linked-list support-and supports simultaneous operation of Ethernet MAC, dual SDIO, HDMI-CEC, and SPDIFRX without CPU intervention, enabled by dedicated DMA channels and hardware accelerators (DMA2D, JPEG codec, DFSDM).

Key Specifications

Pinout & Package

STM32H743IIK6TR uses the TFBGA100 (8 × 8 mm, 0.8 mm pitch) package with 100 terminals. Pin functions are defined per alternate function mapping across 168 GPIOs, supporting multiple peripheral remapping via SYSCFG registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H753IIK6, the STM32H743IIK6TR trades cryptographic hardware for lower cost and identical analog/peripheral integration; versus i.MX RT1176DVMAA, it offers superior analog front-end density and JPEG acceleration but less raw RAM bandwidth for parallel compute workloads.

Availability

STM32H743IIK6TR is available at Aetrix Electronics and suitable for industrial HMI, motor control gateways, and medical imaging edge nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32H743IIK6TR 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 ICs, sensors, and automotive chips since 1987.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich analog integration, and multimedia acceleration-designed specifically for industrial automation, medical devices, and automotive telematics gateways.

FAQ

What is the maximum operating frequency and associated voltage scaling range for STM32H743IIK6TR?

The STM32H743IIK6TR achieves 480 MHz at Vcore = 1.2 V (Range 1). It supports six voltage scaling ranges: Range 0 (1.26 V) for overclocking to 480 MHz with enhanced stability, Range 1 (1.2 V) for standard full-speed operation, and Ranges 2–5 (down to 0.9 V) for reduced dynamic power in Stop/Run modes-each validated per DS12110 Rev 11 Section 6.3.6.

Does STM32H743IIK6TR support hardware encryption acceleration?

No. The STM32H743IIK6TR does not integrate AES, PKA, or HASH accelerators. Those features are present only in the STM32H753 and STM32H7A3 variants. This part relies on software-based cryptography libraries or external secure elements for encryption tasks.

How many independent power domains does STM32H743IIK6TR implement, and what peripherals reside in each?

It implements three independent power domains: D1 hosts Cortex-M7 core, L1 cache, and AXI bus matrix; D2 contains communication peripherals (USB, Ethernet, SDMMC, CAN FD), timers, and AHB bus matrix; D3 manages reset, clock control, power management, and RTC/backup SRAM-enabling granular power gating per functional block.

Can STM32H743IIK6TR directly drive an RGB888 TFT display without external memory?

Yes. With its integrated LCD-TFT controller supporting XGA (1024×768) resolution and Chrom-ART DMA2D accelerator, it can render graphics directly to internal SRAM or external SDRAM via FMC. Frame buffers up to 2 MB are supported, eliminating need for external video RAM in mid-resolution displays.