Overview
The STM32H7A3NIH6Q 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 double-precision floating point unit (FPU) that supports Arm® double-precision (IEEE 754 compliant) and single-precision data-processing instructions and data types. The STM32H7A3NIH6Q also supports a full set of DSP instructions and includes a memory protection unit (MPU) to enhance application security.
The microcontroller incorporates high-speed embedded memories, including up to 2 Mbytes of dual-bank Flash memory and approximately 1.4 Mbytes of RAM, which includes 192 Kbytes of TCM RAM, 1.18 Mbytes of user SRAM, and 4 Kbytes of backup SRAM. It also features an extensive range of enhanced I/Os and peripherals connected to multiple buses, supporting both internal and external memory access.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | 32-bit Arm® Cortex®-M7 |
| Core Speed | 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 memory interfaces, flexible external memory controller with up to 32-bit data bus |
| Analog Peripherals | 2x ADCs with 16-bit max. resolution, 1x 12-bit single-channel DAC, 1x 12-bit dual-channel DAC |
| Communication Interfaces | 4x I2C FM+ interfaces, 5x USART/UARTs, 6x SPIs, 2x CAN controllers with CAN FD, 1x USB OTG interface |
| Operating Temperature | -40°C to 125°C |
| Power Consumption | Stop: down to 32 µA with full RAM retention, Standby: 2.8 µA (Backup SRAM OFF, RTC/LSE ON, PDR OFF) |
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 and approximately 1.4 Mbytes of RAM.
- Analog and Digital Peripherals: Two ADCs, two DACs, two ultra-low power comparators, and digital filters for sigma delta modulators.
- Communication Interfaces: Multiple I2C, USART/UART, SPI, CAN, and USB OTG interfaces.
- Security Features: ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Low-Power Consumption: Low power modes including Stop and Standby with minimal current consumption.
- General-Purpose I/Os: Up to 168 I/O ports with interrupt capability and fast I/Os capable of up to 133 MHz.
Applications
The STM32H7A3NIH6Q is designed for demanding applications in various fields, including:
- Industrial Automation: High-performance and secure solutions for industrial control systems.
- Consumer Electronics: Advanced features for consumer devices requiring high processing power and low power consumption.
- Automotive: Suitable for automotive applications due to its robust performance and reliability.
- Healthcare and Smart Home Devices: Ideal for applications requiring high processing speed, low power consumption, and advanced security features.
Q & A
- What is the core processor of the STM32H7A3NIH6Q?
The core processor is a 32-bit Arm® Cortex®-M7.
- What is the maximum operating speed of the STM32H7A3NIH6Q?
The maximum operating speed is up to 280 MHz.
- How much Flash memory does the STM32H7A3NIH6Q have?
It has up to 2 Mbytes of Flash memory.
- What are the key analog peripherals of the STM32H7A3NIH6Q?
The key analog peripherals include two ADCs, two DACs, and two ultra-low power comparators.
- What communication interfaces are available on the STM32H7A3NIH6Q?
The device features multiple I2C, USART/UART, SPI, CAN, and USB OTG interfaces.
- What are the security features of the STM32H7A3NIH6Q?
The security features include ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- How does the STM32H7A3NIH6Q manage power consumption?
The device has low power modes including Stop and Standby with minimal current consumption.
- What is the range of operating temperatures for the STM32H7A3NIH6Q?
The operating temperature range is from -40°C to 125°C.
- What are some typical applications for the STM32H7A3NIH6Q?
Typical applications include industrial automation, consumer electronics, automotive, healthcare, and smart home devices.
- How many I/O ports does the STM32H7A3NIH6Q have?
The device has up to 168 I/O ports with interrupt capability.
- What is the maximum speed of the I/Os on the STM32H7A3NIH6Q?
The fast I/Os are capable of up to 133 MHz.
