Overview
The STM32H7A3VIT6 is a high-performance microcontroller from STMicroelectronics, based on the Arm® Cortex®-M7 32-bit RISC core. This device operates at frequencies up to 280 MHz and features a floating point unit (FPU) that supports Arm® double-precision and single-precision data-processing instructions. The STM32H7A3VIT6 is designed to enhance application security with a memory protection unit (MPU) and supports a full set of DSP instructions.
The microcontroller includes high-speed embedded memories, such as up to 2 Mbytes of 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 boasts an extensive range of enhanced I/Os and peripherals connected to multiple buses, including four APB buses, three AHB buses, and a multi-layer AXI interconnect.
Key Specifications
| Specification | Details |
|---|---|
| Core | 32-bit Arm® Cortex®-M7 with double-precision FPU and L1 cache (16 Kbytes data and 16 Kbytes instruction 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 TCM RAM, 1.18 Mbytes user SRAM, 4 Kbytes backup SRAM) |
| I/Os | Up to 168 I/O ports with interrupt capability, up to 164 5 V-tolerant I/Os |
| Communication Peripherals | 4× I2C FM+ interfaces, 5× USART/UARTs, 6× SPIs, 2× SAIs, 2× SD/SDIO/MMC interfaces, 2× CAN controllers, 1× USB OTG interface |
| Analog Peripherals | 2× ADCs (up to 24 channels, up to 3.6 MSPS), 1× analog and 1× digital temperature sensors, 2× DACs (1 single-channel, 1 dual-channel), 2× ultra-low-power comparators, 2× operational amplifiers |
| Timers | 12 general-purpose 16-bit timers, 2 PWM timers for motor control, 3 low-power timers, 2 watchdogs |
| Power Management | Stop: down to 32 µA with full RAM retention, Standby: 2.8 µA (Backup SRAM OFF, RTC/LSE ON, PDR OFF) |
| Package | LQFP 100 14x14x1.4 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 and approximately 1.4 Mbytes of RAM.
- Communication Interfaces: Multiple interfaces including I2C, USART/UART, SPI, SAIs, SD/SDIO/MMC, CAN, and USB OTG.
- Analog Peripherals: Two ADCs, two DACs, ultra-low-power comparators, and operational amplifiers.
- Timers and Watchdogs: Various timers for general-purpose and motor control, along with two watchdogs.
- Power Efficiency: Low-power modes such as Stop, Standby, and Sleep, with voltage scaling in Run and Stop modes.
- Security Features: ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Graphics and Audio: LCD-TFT controller, Chrom-ART graphical hardware accelerator, and hardware JPEG codec.
Applications
The STM32H7A3VIT6 is suitable for a wide range of applications due to its high performance, extensive peripheral set, and low power consumption. Some key application areas include:
- Industrial Automation: Motor control, power management, and industrial communication protocols.
- Medical Devices: High-precision data processing and low-power operation for medical equipment.
- Aerospace and Defense: Secure and reliable operation in demanding environments.
- Consumer Electronics: Advanced user interfaces, multimedia processing, and low-power consumer devices.
- Automotive Systems: In-vehicle infotainment, advanced driver-assistance systems (ADAS), and vehicle control units.
Q & A
- What is the core architecture of the STM32H7A3VIT6?
The STM32H7A3VIT6 is based on the 32-bit Arm® Cortex®-M7 core with a double-precision FPU.
- What is the maximum operating frequency of the STM32H7A3VIT6?
The maximum operating frequency is up to 280 MHz.
- How much Flash and RAM does the STM32H7A3VIT6 have?
The device has up to 2 Mbytes of Flash memory and approximately 1.4 Mbytes of RAM.
- What types of communication interfaces are available on the STM32H7A3VIT6?
The device features multiple interfaces including I2C, USART/UART, SPI, SAIs, SD/SDIO/MMC, CAN, and USB OTG.
- What are the key analog peripherals of the STM32H7A3VIT6?
The device includes two ADCs, two DACs, ultra-low-power comparators, and operational amplifiers.
- What are the power consumption characteristics of the STM32H7A3VIT6 in low-power modes?
In Stop mode, the power consumption is down to 32 µA with full RAM retention, and in Standby mode, it is 2.8 µA (Backup SRAM OFF, RTC/LSE ON, PDR OFF).
- What security features does the STM32H7A3VIT6 offer?
The device includes ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- What is the package type of the STM32H7A3VIT6?
The device is available in an LQFP 100 14x14x1.4 mm package.
- What is the operating temperature range of the STM32H7A3VIT6?
The operating temperature range is from -40°C to 125°C.
- What are some typical applications for the STM32H7A3VIT6?
Typical applications include industrial automation, medical devices, aerospace and defense, consumer electronics, and automotive systems.
- Does the STM32H7A3VIT6 support graphics and audio processing?
Yes, the device features an LCD-TFT controller, Chrom-ART graphical hardware accelerator, and hardware JPEG codec.
