STMicroelectronics STM32H743AGI6

Overview

STM32H743AGI6 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 management (D1/D2/D3). It integrates triple PLLs, hardware JPEG codec, LCD-TFT controller, and 3× 16-bit ADCs (3.6 MSPS) for high-performance embedded control in industrial HMI and real-time motor drives.

For engineers reviewing the STM32H743AGI6 datasheet, STM32H743AGI6 pinout, STM32H743AGI6 application, or STM32H743AGI6 equivalent, key selection criteria include its 480 MHz M7 core with L1 cache, dual-bank flash with read-while-write, 168 GPIOs with interrupt capability, and support for CAN FD, Ethernet MAC, and HDMI-CEC in a 100-pin LQFP package.

Technical Context

The STM32H743AGI6 implements a three-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, supporting concurrent high-bandwidth data flows between CPU, DMA controllers, and peripherals.

It features three dedicated PLLs - one for system clock generation and two for kernel clocks - all supporting fractional-N mode for precise frequency synthesis. The device includes four DMA controllers: one high-speed MDMA with linked-list support, two dual-port DMAs with FIFO, and one basic DMA with request routing, offloading CPU-intensive memory transfers.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), 100-pin quad flat pack with exposed thermal pad; RoHS-compliant and ECOPACK2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, the AGI6 offers extended temperature range for harsh environments; versus STM32H753BIT6, it omits crypto engines - reducing cost and power for non-secure industrial control where encryption is handled externally.

Availability

STM32H743AGI6 is available at Aetrix Electronics and suitable for industrial HMI, real-time motor drives, medical imaging edge nodes, and automated test equipment requiring stable component supply across long-lifecycle deployments.

Supply support for STM32H743AGI6 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog chips for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich connectivity, and graphical capability - specifically engineered for industrial automation, medical devices, and advanced human-machine interfaces.

FAQ

What is the maximum operating temperature rating for STM32H743AGI6?

The STM32H743AGI6 is qualified for industrial temperature range: –40 °C to +105 °C. This rating is confirmed in Section 6.3.1 of DS12110 Rev 11, and applies to the full LQFP100 package variant. Thermal derating begins above 105 °C ambient; junction temperature must remain below 125 °C under all operating conditions per absolute maximum ratings.

Does STM32H743AGI6 support hardware-accelerated cryptography?

No, STM32H743AGI6 does not integrate hardware cryptographic accelerators. Unlike the STM32H753 or STM32H7A3 variants, it lacks AES-256, HASH, PKA (RSA/ECC), and secure boot ROM. Security relies on software libraries or external secure elements. This omission reduces die size, cost, and power - aligning with its focus on real-time control and graphics rather than data security.

How many independent ADC instances does STM32H743AGI6 provide, and what is their shared sampling capability?

STM32H743AGI6 integrates three independent 16-bit ADCs (ADC1/2/3), each supporting up to 36 input channels and 3.6 MSPS conversion rate. They share a common clock source but operate asynchronously; simultaneous sampling across all three is supported via hardware synchronization signals (EXTSEL), enabling phase-current acquisition in 3-phase motor control with <10 ns skew.

Can STM32H743AGI6 directly drive a 1024×768 RGB TFT panel without external memory?

Yes - the integrated LCD-TFT controller (LTDC) supports XGA (1024×768) resolution with up to 24-bit RGB interface and programmable pixel clock. Framebuffer storage uses internal SRAM: 1024×768×3 bytes = ~2.25 MB exceeds on-chip RAM, but partial buffering (e.g., double-buffered 1024×384 regions) or external SDRAM via FMC enables full XGA. No external video RAM is mandatory for basic static display.