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STM32H7A3IIT6Q

STM32H7A3IIT6Q

STMicroelectronics
ARM Microcontrollers - MCU High-performance & DSP DP-FPU, Arm Cortex-M7 MCU 2MBytes of Flash 1376 KB SRAM,
1,931 in stock
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Overview

STM32H7A3IIT6Q is a high-performance STM32 microcontroller from STMicroelectronics based on the Arm Cortex-M7 core. It is aimed at designs that need substantial Flash and SRAM, fast real-time control, and DSP-capable processing in a single MCU. The part is commonly used as the main application processor in embedded systems rather than as a simple peripheral controller.

Why Choose This Part

This part offers a strong balance of CPU performance, memory size, and embedded peripheral integration for demanding firmware. The Cortex-M7 core is well suited to control loops, signal processing, and multitasking embedded applications. Its large Flash and SRAM allocations help when the firmware includes communication stacks, graphics, buffering, or complex state machines.

Applications

Industrial communication gateways
Use the MCU as the central controller for protocol handling, data buffering, and real-time task scheduling in industrial nodes and gateways.
Motor and motion control
The Cortex-M7 core and on-chip memory make it suitable for closed-loop control, comms, and supervisory firmware in motor-control designs.
Edge data processing
Good fit for embedded systems that need local filtering, control logic, or lightweight analytics without a separate processor.
Connected instrumentation
Useful for lab, test, and measurement equipment that needs deterministic timing, UI handling, and communication stacks.
IoT control nodes
Works well as the main MCU in connected devices that need substantial firmware space, multiple interfaces, and real-time responsiveness.

Getting Started

For development, start with an ST Nucleo or Discovery board that uses the STM32H7A3 family so you can validate clocks, memory use, and peripherals before committing to a custom PCB. ST's STM32CubeIDE and STM32CubeMX are the usual starting point for pinout, clock tree, and peripheral setup, and they integrate well with the STM32Cube firmware packages. For debugging and flashing, use ST-LINK through SWD and keep PCB layout attention on decoupling, power integrity, and high-speed signal routing.

Dev Boards

Development boards and breakout modules featuring the STM32H7A3IIT6Q or compatible chips — ready to use for prototyping.

The Arduino GIGA R1 WiFi combines the STM32H7 dual-core microcontroller with onboard Wi-Fi® and Bluetooth® 5.x connectiv
Digi-Key 773 in stock
STM32H7B3I-EVAL STMicroelectronics
STM32H7B3LI STM32H7 ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Digi-Key Mouser 11 in stock
STM32H735G-DK STMicroelectronics
STM32H735IG Discovery STM32H7 ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Digi-Key 488 in stock
NUCLEO-H755ZI-Q STMicroelectronics
STM32H755ZI Nucleo-144 STM32H7 ARM® Cortex®-M4, Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
NUCLEO-H723ZG STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-144 dev board, STM32H723ZG MCU, supports Arduino, ST Zio & morpho
Mouser 1,468 in stock
Part of STM32 family » STM32H7

STM32H7 Family

Part NumberDifferenceStock
STM32H7B0RBT6 LQFP-64 · 128KB Flash 623
STM32H7A3VGT6 VGT6 2,410
STM32H7B3I-DK B3I-DK —

Also Consider

STM32H743ZI STMicroelectronics - A closely related high-performance STM32H7 option when you want a similar Cortex-M7 class MCU with a different memory and peripheral mix.