Overview
The STM32H7A3NIH6 microcontroller, produced by STMicroelectronics, is part of the STM32H7A3/7B3 series. It features an Arm® Cortex®-M7 core with a double-precision floating point unit, operating at frequencies up to 280 MHz. This high-performance MCU is designed to deliver exceptional processing power, enhanced security, and power efficiency, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| CPU Core | Arm® Cortex®-M7 with double-precision FPU |
| Maximum CPU Frequency | Up to 280 MHz |
| Performance Metrics | 1414 CoreMark / 599 DMIPS |
| L1 Cache | 16 Kbytes of I-cache + 16 Kbytes of D-cache |
| Flash Memory | Up to 2 Mbytes with read while write support |
| RAM | ~1.4 Mbytes (192 Kbytes TCM RAM, 1.18 Mbytes user SRAM, 4 Kbytes backup SRAM) |
| Communication Interfaces | Up to 35 interfaces including USB 2.0, CAN FD, SPI, I2C, UART, etc. |
| Analog Peripherals | 2x 16-bit ADCs, 2x DACs, 2x ultra-low power comparators, 2x operational amplifiers |
| Graphics | LCD-TFT controller, Chrom-ART Accelerator™, JPEG hardware accelerator |
| Power Efficiency | Dual-power domain architecture, embedded SMPS, low-power modes (STOP, Standby, VBAT) |
| Operating Voltage | 1.62 to 3.6 V |
| Operating Temperature | -40 to 85 °C (ambient), -40 to 130 °C (junction) |
| Packages | 64-pin to 225-pin packages in BGA and LQFP profiles |
Key Features
- High-Performance CPU: Arm® Cortex®-M7 core with double-precision FPU, running up to 280 MHz.
- Security Features: Crypto/hash hardware acceleration, on-the-fly decryption, Secure Firmware Install (SFI), and Secure Boot Secure Firmware Update (SBSFU).
- Power Efficiency: Dual-power domain architecture, embedded SMPS, and various low-power modes.
- Graphics Capabilities: LCD-TFT controller with dual-layer support, Chrom-ART Accelerator™, and JPEG hardware accelerator.
- Communication Peripherals: Up to 35 communication interfaces including USB 2.0, CAN FD, SPI, I2C, UART, etc.
- Analog Peripherals: Dual 16-bit ADCs, dual-channel DACs, ultra-low power comparators, and operational amplifiers.
- Memory and Storage: Flexible external memory controller, dual Octo-SPI serial Flash memory interface, and extensive RAM options.
Applications
- Industrial Applications: PLCs, inverters, circuit breakers.
- Medical Equipment: Diagnostic devices, patient monitoring systems.
- Printers and Scanners: High-performance printing and scanning solutions.
- Alarm Systems and HVAC: Advanced security and climate control systems.
- Home Audio Appliances: High-fidelity audio equipment.
- Mobile and IoT Devices: Wearable devices, smart home automation.
Q & A
- What is the maximum CPU frequency of the STM32H7A3NIH6?
The maximum CPU frequency is up to 280 MHz.
- What security features are included in the STM32H7A3NIH6?
The MCU includes crypto/hash hardware acceleration, on-the-fly decryption, Secure Firmware Install (SFI), and Secure Boot Secure Firmware Update (SBSFU).
- What types of memory does the STM32H7A3NIH6 support?
The MCU supports up to 2 Mbytes of flash memory, ~1.4 Mbytes of RAM, and has dual Octo-SPI serial Flash memory interfaces.
- What are the power efficiency features of the STM32H7A3NIH6?
The MCU features a dual-power domain architecture, embedded SMPS, and various low-power modes such as STOP, Standby, and VBAT.
- What graphics capabilities does the STM32H7A3NIH6 have?
The MCU includes an LCD-TFT controller with dual-layer support, Chrom-ART Accelerator™, and a JPEG hardware accelerator.
- What communication interfaces are available on the STM32H7A3NIH6?
The MCU offers up to 35 communication interfaces including USB 2.0, CAN FD, SPI, I2C, UART, etc.
- What analog peripherals are included in the STM32H7A3NIH6?
The MCU includes dual 16-bit ADCs, dual-channel DACs, ultra-low power comparators, and operational amplifiers.
- What is the operating voltage range of the STM32H7A3NIH6?
The operating voltage range is from 1.62 to 3.6 V.
- What are the typical power consumption values in different modes?
The MCU consumes 120 µA/MHz in Run mode, 32 µA in STOP mode, 2.2 µA in Standby mode, and 0.74 µA in VBAT mode with RTC.
- What are some common applications of the STM32H7A3NIH6?
Common applications include industrial automation, medical equipment, printers and scanners, alarm systems, home audio appliances, and mobile/IoT devices.
