Overview
The STM32H7A3IIT6Q is a high-performance microcontroller from STMicroelectronics, based on the Arm® Cortex®-M7 32-bit RISC core. This core operates at frequencies up to 280 MHz and includes a floating point unit (FPU) that supports Arm® double-precision and single-precision data-processing instructions. The device is part of the STM32H7A3xI/G series, which is designed for applications requiring high computational power and advanced security features.
The STM32H7A3IIT6Q integrates extensive memory resources, including up to 2 Mbytes of Flash memory and approximately 1.4 Mbytes of RAM. It also features a wide range of peripherals and communication interfaces, making it suitable for complex and demanding applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | 32-bit Arm® Cortex®-M7 with double-precision FPU and L1 cache |
| 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) |
| I/O Ports | Up to 168 I/O ports with interrupt capability, up to 164 5 V-tolerant I/Os |
| Communication Interfaces | 4x I2C FM+, 5x USART/UARTs, 6x SPIs, 2x SAIs, 2x SD/SDIO/MMC, 2x CAN controllers, 1x USB OTG |
| Analog Peripherals | 2x ADCs (up to 24 channels), 2x DACs, 2x ultra-low power comparators, 2x operational amplifiers |
| Power Consumption | Stop: down to 32 µA with full RAM retention, Standby: 2.8 µA (Backup SRAM OFF, RTC/LSE ON, PDR OFF) |
| Package | LQFP 176 24x24x1.4 mm |
| Operating Temperature | -40°C to 125°C |
Key Features
- High-Performance Core: 32-bit Arm® Cortex®-M7 core with double-precision FPU and L1 cache, operating at up to 280 MHz.
- Memory and Storage: Up to 2 Mbytes of Flash memory, ~1.4 Mbytes of RAM, and various memory interfaces including Octo-SPI and external memory controllers.
- Security Features: ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Communication Peripherals: Multiple I2C, USART/UART, SPI, SAI, SD/SDIO/MMC, CAN, and USB OTG interfaces.
- Analog Peripherals: Two ADCs, two DACs, ultra-low power comparators, and operational amplifiers.
- Low-Power Modes: Stop, Standby, and VBAT modes with very low power consumption.
- DMA Controllers: Five DMA controllers including high-speed general-purpose master DMA and dual-port DMAs.
Applications
The STM32H7A3IIT6Q is suitable for a wide range of applications that require high computational power, advanced security, and extensive peripheral support. These include:
- Industrial Automation: Control systems, motor control, and industrial communication.
- Medical Devices: High-performance medical equipment requiring advanced signal processing and security.
- Aerospace and Defense: Systems needing robust security features and high computational capabilities.
- Consumer Electronics: Advanced consumer devices such as smart home appliances and high-end audio equipment.
- Automotive Systems: Infotainment systems, advanced driver-assistance systems (ADAS), and vehicle control units.
Q & A
- What is the core architecture of the STM32H7A3IIT6Q?
The STM32H7A3IIT6Q is based on the 32-bit Arm® Cortex®-M7 core with a double-precision FPU.
- What is the maximum operating frequency of the STM32H7A3IIT6Q?
The maximum operating frequency is up to 280 MHz.
- How much Flash and RAM memory does the STM32H7A3IIT6Q have?
It has up to 2 Mbytes of Flash memory and approximately 1.4 Mbytes of RAM.
- What are the key security features of the STM32H7A3IIT6Q?
The device includes ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- What types of communication interfaces are available on the STM32H7A3IIT6Q?
The device features multiple I2C, USART/UART, SPI, SAI, SD/SDIO/MMC, CAN, and USB OTG interfaces.
- What are the low-power modes supported by the STM32H7A3IIT6Q?
The device supports Stop, Standby, and VBAT modes with very low power consumption.
- How many DMA controllers does the STM32H7A3IIT6Q have?
The device includes five DMA controllers, including a high-speed general-purpose master DMA and dual-port DMAs.
- What is the package type of the STM32H7A3IIT6Q?
The package type is LQFP 176 24x24x1.4 mm.
- What is the operating temperature range of the STM32H7A3IIT6Q?
The operating temperature range is -40°C to 125°C.
- What types of analog peripherals are available on the STM32H7A3IIT6Q?
The device includes two ADCs, two DACs, ultra-low power comparators, and operational amplifiers.
- Is the STM32H7A3IIT6Q RoHS compliant?
Yes, the STM32H7A3IIT6Q is RoHS compliant with an Ecopack2 grade.
