The STM32H7A3ZIT6 from STMicroelectronics is a high-performance 32-bit microcontroller built around the ARM Cortex-M7 core processor, designed to meet demanding embedded system requirements where processing power, memory capacity, and rich peripheral integration are critical. This single-core MCU operates at an impressive 280MHz clock speed, delivering substantial computational capability for real-time control, signal processing, and complex algorithm execution in industrial, consumer, and communication applications.
At the heart of this device is 2MB of flash program memory organized as 2M x 8, providing ample space for sophisticated firmware and application code, while the generous 1.4M x 8 RAM configuration ensures smooth multitasking and data buffering operations. The microcontroller addresses design challenges related to system integration complexity by incorporating an extensive array of connectivity options including CANbus and LINbus for automotive and industrial networks, USB OTG for flexible host/device operation, multiple UART/USART interfaces, SPI, I²C, SDIO for memory card interfacing, SAI for high-quality audio, SPDIF for digital audio transmission, HDMI-CEC for consumer electronics control, and specialized interfaces like SWPMI and MDIO, making it suitable for applications ranging from motor control and industrial automation to multimedia systems and IoT gateways.
The device features robust analog capabilities with 20 channels of 16-bit analog-to-digital converters and 3 channels of 12-bit digital-to-analog converters, enabling precise sensor interfacing and signal generation without requiring external conversion circuitry. Essential system management peripherals include brown-out detection and reset, power-on reset (POR), DMA controllers for efficient data movement, a watchdog timer (WDT) for system reliability, PWM outputs for motor control and power management, LCD controller for direct display interfacing, and an internal oscillator that simplifies clock generation and reduces external component count. With 97 I/O pins available in the 144-LQFP package measuring 20x20mm, designers have extensive flexibility for interfacing with sensors, actuators, displays, and communication modules while maintaining a compact surface-mount footprint suitable for space-constrained designs.
Operating across an industrial temperature range of -40°C to 85°C and powered from a flexible 1.62V to 3.6V supply voltage, this microcontroller is well-suited for harsh environments and battery-powered applications. The device is RoHS3 compliant, meeting current environmental regulations, and is supplied in tray packaging with 2980 units available. As part of the STM32H7 series, this microcontroller belongs to STMicroelectronics' advanced product family known for balancing high performance with power efficiency. Equivalent or alternative models within the STM32H7 family include the STM32H7A3ZIT6Q (automotive-qualified version), STM32H7A3VIT6 (100-pin LQFP variant with fewer I/Os), STM32H7A3IIT6 (176-pin LQFP with more I/Os), STM32H7B3ZIT6 (with enhanced graphics capabilities), STM32H743ZIT6 (similar performance tier without certain advanced features), and STM32H750ZBT6 (reduced flash variant for cost-sensitive applications requiring external memory), allowing designers to select the optimal balance of features, pin count, and cost for their specific application requirements.
STM32H7A3ZIT6 Key Technical Attributes
Operating Temperature: -40°C ~ 85°C
Program Memory Size: 2MB FLASH
Core Processor: ARM Cortex-M7
STM32H7A3ZIT6 Packing Size
This product model is offered in a 144-LQFP (Low-profile Quad Flat Package) case with physical dimensions of 20x20 mm, ensuring robust mechanical suitability for surface-mount designs. Manufactured using high-quality tray packing for optimal protection during transport and handling, it includes a total of 144 pins providing extensive connectivity options. The packaging and pin layout are designed to offer excellent heat dissipation and stable electrical performance, supporting intensive processing loads.
STM32H7A3ZIT6 Application
Widely suitable for high-performance embedded systems, the STM32H7A3ZIT6 microcontroller is ideal for industrial automation, motor control, medical devices, consumer electronics, and advanced IoT solutions. Its powerful ARM Cortex-M7 core and broad peripheral set make it an excellent choice for applications demanding real-time processing, rich graphical interfaces, and superior connectivity.
STM32H7A3ZIT6 Features
The STM32H7A3ZIT6 microcontroller boasts exceptional features such as a high-speed 280 MHz ARM Cortex-M7 single core, versatile memory structure with 2MB of embedded FLASH, and 1.4MB RAM optimized for intensive multitasking and data operations. Advanced peripheral integration includes brown-out detection and reset, direct memory access (DMA), LCD controller, PWM output, watchdog timers, and power-on reset for enhanced device reliability. Extensive connectivity support through CANbus, HDMI-CEC, IrDA, LINbus, UART/USART, USB OTG, and multiple serial interfaces ensures adaptability for diverse designs. The integrated data converters feature a 20-channel 16-bit ADC and a 3-channel 12-bit DAC, enabling precise analog-data acquisition and generation. Internal oscillators offer stable clock signals and simplified system design.
STM32H7A3ZIT6 Quality and Safety Features
Fully compliant with RoHS3 standards, the STM32H7A3ZIT6 guarantees environmental safety and reliability. Additional integrated safety mechanisms, such as brown-out detection, watchdog timers, and power-on reset circuitry, safeguard critical operations and ensure uninterrupted functionality. The robust operating temperature range from -40°C to 85°C supports dependable operation even in harsh industrial environments.
STM32H7A3ZIT6 Compatibility
This microcontroller is designed for compatibility across a broad spectrum of STM32 development boards and platforms, facilitating easy integration in new and existing designs. Its support for an extensive range of industry-standard communication protocols and flexible I/O configuration enable seamless interaction with a variety of external components, modules, and sensors.
STM32H7A3ZIT6 Datasheet PDF
Customers are encouraged to download the most authoritative STM32H7A3ZIT6 datasheet directly from our website. Our datasheet collection is constantly updated to reflect the latest manufacturer revisions, providing complete and accurate technical reference to ensure your design needs are fully supported.
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