Overview
The STM32H7A3RIT6 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) supporting Arm® double-precision and single-precision data-processing instructions. The STM32H7A3RIT6 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, along with an extensive range of enhanced I/Os and peripherals. It also features advanced communication interfaces, low-power modes, and a variety of analog and digital peripherals, making it suitable for a wide range of applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | 32-bit Arm® Cortex®-M7 core with double-precision FPU, up to 280 MHz, MPU, and DSP instructions |
| Memories | Up to 2 Mbytes of Flash memory, ~1.4 Mbytes of RAM (including 192 Kbytes of TCM RAM and 4 Kbytes of backup SRAM) |
| External Memory Interfaces | Octo-SPI memory interfaces, flexible external memory controller supporting SRAM, PSRAM, NOR Flash, SDRAM/LPSDR SDRAM, and NAND Flash |
| Power Supply | 1.62 to 3.6 V application supply and I/Os, low-power modes (Sleep, Stop, Standby), and high power efficiency SMPS step-down converter |
| Communication Interfaces | 4× I2C FM+ interfaces, 5× USART/UARTs, 6× SPIs, 2× SAIs, 2× SD/SDIO/MMC interfaces, 2× CAN controllers, and 1× USB OTG interface |
| Analog Peripherals | 2× ADCs with up to 24 channels, 2× DACs, 2× ultra-low-power comparators, and 2× operational amplifiers |
| Timers and Watchdogs | 12 general-purpose 16-bit timers, 2 PWM timers for motor control, 3 low-power timers, and 2 watchdogs |
| Package and Operating Temperature | LQFP 64 package, operating temperature range from -40°C to 125°C |
Key Features
- High-Performance Core: 32-bit Arm® Cortex®-M7 core with double-precision FPU and L1 cache, operating up to 280 MHz.
- Advanced Memory and Interfaces: Up to 2 Mbytes of Flash memory, ~1.4 Mbytes of RAM, and extensive external memory interfaces.
- Low-Power Consumption: Multiple low-power modes including Stop, Standby, and VBAT modes with full RAM retention.
- Security Features: ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- Communication and Peripherals: Comprehensive set of communication interfaces (I2C, USART, SPI, CAN, USB OTG) and analog peripherals (ADCs, DACs, comparators, operational amplifiers).
- Graphics and Display: LCD-TFT controller up to XGA resolution, Chrom-ART graphical hardware Accelerator, and Hardware JPEG Codec.
- Timers and Watchdogs: Multiple timers and watchdogs for various applications, including motor control and general-purpose timing.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication protocols.
- Aerospace and Defense: High reliability and security features make it suitable for aerospace and defense applications.
- Medical Devices: Can be used in medical devices requiring high performance, low power consumption, and advanced peripherals.
- Consumer Electronics: Ideal for high-end consumer electronics such as smart home devices, wearables, and gaming consoles.
- Automotive Systems: Used in automotive systems for control units, infotainment systems, and advanced driver-assistance systems (ADAS).
- Flight Controllers: As seen in the Matek Systems H7A3-SLIM flight controller, it is also used in drone and UAV applications.
Q & A
- What is the core architecture of the STM32H7A3RIT6?
The STM32H7A3RIT6 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 STM32H7A3RIT6?
The maximum operating frequency is up to 280 MHz.
- How much Flash and RAM memory does the STM32H7A3RIT6 have?
The device has up to 2 Mbytes of Flash memory and approximately 1.4 Mbytes of RAM.
- What are the low-power modes available in the STM32H7A3RIT6?
The device supports low-power modes including Stop, Standby, and VBAT modes with full RAM retention.
- What security features are included in the STM32H7A3RIT6?
The device includes ROP, PC-ROP, active tamper, and secure firmware upgrade support.
- What types of communication interfaces are available on the STM32H7A3RIT6?
The device features I2C, USART, SPI, CAN, and USB OTG interfaces among others.
- What is the operating temperature range of the STM32H7A3RIT6?
The operating temperature range is from -40°C to 125°C.
- Does the STM32H7A3RIT6 support graphics and display controllers?
Yes, it includes an LCD-TFT controller up to XGA resolution and a Chrom-ART graphical hardware Accelerator.
- How many timers and watchdogs are available on the STM32H7A3RIT6?
The device has multiple timers (including general-purpose, motor control, and low-power timers) and two watchdogs.
- What package options are available for the STM32H7A3RIT6?
The device is available in an LQFP 64 package.
