Overview
The STM32H7A3IIT6 is a high-performance microcontroller from STMicroelectronics, part of the STM32H7A3xI/G family. It is based on the 32-bit Arm® Cortex®-M7 core, operating at frequencies up to 280 MHz. This microcontroller integrates advanced peripherals, high-speed embedded memories, and robust security features, making it suitable for a wide range of applications that require high processing power and low power consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | 32-bit Arm® Cortex®-M7 core with double-precision FPU and L1 cache |
| Frequency | Up to 280 MHz |
| Flash Memory | Up to 2 Mbytes with read while write support |
| RAM | ~1.4 Mbytes (including 192 Kbytes of TCM RAM, 1.18 Mbytes of user SRAM, and 4 Kbytes of backup SRAM) |
| External Memory Interfaces | 2x Octo-SPI, flexible external memory controller supporting SRAM, PSRAM, NOR flash, SDRAM/LPSDR SDRAM, and NAND flash |
| Security Features | ROP, PC-ROP, active tamper, secure firmware upgrade support |
| I/Os | Up to 168 I/O ports with interrupt capability, up to 164 5-V-tolerant I/Os |
| Power Consumption | Stop mode: down to 32 µA with full RAM retention, Standby: 2.8 µA, VBAT: 0.8 µA |
| Clock Management | Internal oscillators: 64 MHz HSI, 48 MHz HSI48, 4 MHz CSI, 32 kHz LSI; External oscillators: 4-50 MHz HSE, 32.768 kHz LSE |
| Communication Peripherals | Multiple USART/UART, I2C, SPI, USB OTG, CAN, SD/SDIO/MMC, and more |
| Analog Peripherals | 2x ADCs with 16-bit max. resolution, 2x DACs, ultra-low-power comparators, operational amplifiers |
| Operating Conditions | Operating voltage: 1.62 to 3.6 V, Ambient temperature range: -40 to +85 °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.
- Advanced Peripherals: Includes LCD-TFT controller, Chrom-ART graphical hardware accelerator, JPEG hardware codec, and multiple communication interfaces.
- Security: Features ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Low Power Consumption: Offers various power-saving modes, including Stop, Standby, and VBAT modes.
- Memory and Storage: Up to 2 Mbytes of flash memory and ~1.4 Mbytes of RAM, along with flexible external memory interfaces.
- Analog and Digital Capabilities: Includes multiple ADCs, DACs, ultra-low-power comparators, and operational amplifiers.
- Debug and Development Tools: Supports SWD and JTAG interfaces, with a 4 KB Embedded Trace Buffer.
Applications
- Motor Drive and Application Control: Suitable for motor control and application-specific requirements.
- Medical Equipment: Can be used in medical devices due to its high reliability and performance.
- Industrial Applications: Ideal for PLCs, inverters, circuit breakers, and other industrial control systems.
- Printers and Scanners: Used in printing and scanning devices requiring high processing power.
- Alarm Systems, Video Intercom, and HVAC: Suitable for security and home automation systems.
- Home Audio Appliances: Can be integrated into home audio devices for enhanced performance.
- Mobile Applications and IoT: Used in mobile and IoT devices requiring low power consumption and high performance.
- Wearable Devices: Ideal for smart watches and other wearable technology.
Q & A
- What is the core architecture of the STM32H7A3IIT6?
The STM32H7A3IIT6 is based on the 32-bit Arm® Cortex®-M7 core with a double-precision FPU and L1 cache.
- What is the maximum operating frequency of the STM32H7A3IIT6?
The maximum operating frequency is up to 280 MHz.
- How much flash memory does the STM32H7A3IIT6 have?
The STM32H7A3IIT6 has up to 2 Mbytes of flash memory.
- What are the key security features of the STM32H7A3IIT6?
The key security features include ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- What are the power-saving modes available in the STM32H7A3IIT6?
The available power-saving modes include Stop, Standby, and VBAT modes.
- What types of communication peripherals are available on the STM32H7A3IIT6?
The microcontroller includes multiple USART/UART, I2C, SPI, USB OTG, CAN, SD/SDIO/MMC, and other communication interfaces.
- What is the operating voltage range of the STM32H7A3IIT6?
The operating voltage range is from 1.62 to 3.6 V.
- What is the ambient temperature range for the STM32H7A3IIT6?
The ambient temperature range is from -40 to +85 °C.
- Does the STM32H7A3IIT6 support external memory interfaces?
Yes, it supports external memory interfaces including Octo-SPI, SRAM, PSRAM, NOR flash, SDRAM/LPSDR SDRAM, and NAND flash.
- What debug interfaces are available on the STM32H7A3IIT6?
The microcontroller supports SWD and JTAG interfaces, along with a 4 KB Embedded Trace Buffer.
