Overview
The STM32H7A3ZIT6 is a high-performance microcontroller from STMicroelectronics, based on the Arm® Cortex®-M7 32-bit RISC core. This device operates at up to 280 MHz and features a floating point unit (FPU) that supports Arm® double-precision and single-precision data-processing instructions. It is part of the STM32H7A3xI/G series, which is designed for applications requiring high computational power, advanced security, and extensive peripheral support.
The microcontroller includes a range of embedded memories, advanced communication interfaces, and low-power modes, making it suitable for various industrial, automotive, and consumer electronics applications.
Key Specifications
| Parameter | Specification |
|---|---|
| CPU Core | 32-bit Arm® Cortex®-M7 |
| CPU Frequency | Up to 280 MHz |
| Flash Memory | Up to 2 Mbytes with read while write support, plus 1 Kbyte of OTP |
| RAM | ~1.4 Mbytes: 192 Kbytes of TCM RAM, 1.18 Mbytes of user SRAM, and 4 Kbytes of backup SRAM |
| Memory Interfaces | 2x Octo-SPI, flexible external memory controller with up to 32-bit data bus |
| Operating Voltage | 1.62 to 3.6 V |
| Operating Temperature | -40 to 85 °C (ambient), -40 to 130 °C (junction) |
| Package | LQFP 144 (20x20x1.4 mm) |
| Communication Peripherals | Up to 35 peripherals including I2C, USART, SPI, CAN, USB OTG, etc. |
| Analog Peripherals | 2x ADCs, 2x DACs, ultra-low power comparators, operational amplifiers, etc. |
Key Features
- High-Performance Core: 32-bit Arm® Cortex®-M7 core with double-precision FPU and L1 cache, operating at up to 280 MHz.
- Advanced Security: Memory protection unit (MPU), ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Extensive Peripherals: Includes two ADCs, two DACs, ultra-low power comparators, operational amplifiers, and a wide range of communication interfaces such as I2C, USART, SPI, CAN, and USB OTG.
- Low-Power Modes: Sleep, Stop, and Standby modes with low power consumption (e.g., Stop mode: down to 32 µA with full RAM retention).
- High-Speed Memories: Dual-bank Flash memory, TCM RAM, user SRAM, and backup SRAM, along with Octo-SPI memory interfaces and a flexible external memory controller.
- Graphics and Audio: LCD-TFT controller up to XGA resolution and serial audio interfaces (SAIs) with I2S support.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication protocols.
- Automotive Systems: Used in advanced driver-assistance systems (ADAS), infotainment systems, and vehicle control units.
- Consumer Electronics: Ideal for high-performance applications such as smart home devices, wearables, and gaming consoles.
- Medical Devices: Can be used in medical equipment requiring high computational power and advanced peripherals.
- Aerospace and Defense: Suitable for applications requiring high security and reliability.
Q & A
- What is the CPU core of the STM32H7A3ZIT6?
The CPU core is the 32-bit Arm® Cortex®-M7.
- What is the maximum CPU frequency of the STM32H7A3ZIT6?
The maximum CPU frequency is up to 280 MHz.
- How much Flash memory does the STM32H7A3ZIT6 have?
The device has up to 2 Mbytes of Flash memory with read while write support, plus 1 Kbyte of OTP memory.
- What are the low-power modes available on the STM32H7A3ZIT6?
The device supports Sleep, Stop, and Standby modes with low power consumption.
- What communication peripherals are available on the STM32H7A3ZIT6?
The device includes a wide range of communication peripherals such as I2C, USART, SPI, CAN, and USB OTG.
- What is the operating voltage range of the STM32H7A3ZIT6?
The operating voltage range is 1.62 to 3.6 V.
- What is the package type of the STM32H7A3ZIT6?
The package type is LQFP 144 (20x20x1.4 mm).
- Does the STM32H7A3ZIT6 support advanced security features?
Yes, it supports ROP, PC-ROP, active tamper, and secure firmware upgrade.
- What are the key analog peripherals of the STM32H7A3ZIT6?
The device includes two ADCs, two DACs, ultra-low power comparators, and operational amplifiers.
- Is the STM32H7A3ZIT6 suitable for industrial automation applications?
Yes, it is suitable for industrial automation due to its high-performance core and extensive peripherals.
