STM32H7A3RGT6 - 280MHz Cortex-M7 MCU with 1.4MB RAM | STMicroelectronics
料号： STM32H7A3RGT6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
STM32H7A3RGT6 概述
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (RAM and flash), and programmable input/output peripherals. The STM32H7A3RGT6 belongs to the STM32H7 family, which is part of the broader STM32 series of 32-bit microcontrollers. These MCUs are widely used in industrial control, consumer electronics, and IoT devices due to their balance of performance, power efficiency, and peripheral integration.
Key features of the STM32H7A3RGT6 include a 280 MHz ARM Cortex-M7 core with double-precision floating-point unit (FPU), 1.4 MB of SRAM, and 2 MB of flash memory. It supports external memory interfaces for SDRAM, SRAM, and NOR flash, and includes a Chrom-ART Accelerator for graphics. The device also features a comprehensive set of security features, including hardware cryptographic acceleration and a true random number generator (TRNG).
The STM32H7A3RGT6 is built on a high-performance architecture that includes a 32-bit multi-AHB bus matrix, enabling efficient data transfer between the core, memory, and peripherals. The Cortex-M7 core with its 6-stage pipeline and branch prediction delivers high instruction throughput, making it suitable for real-time control and digital signal processing applications. The device also includes a memory protection unit (MPU) and a cache for both instruction and data, enhancing system reliability and performance.
Typical applications include industrial automation, motor control, smart home devices, and high-end consumer electronics. The large memory and high clock speed make it ideal for applications requiring complex algorithms, such as predictive maintenance and advanced user interfaces. The device's rich connectivity options, including Ethernet, USB, and multiple UART/SPI/I2C interfaces, enable seamless integration into networked systems.
When designing with the STM32H7A3RGT6, ensure proper power supply decoupling with 100 nF capacitors close to each power pin and a 4.7 uF bulk capacitor. The device supports a wide supply voltage range of 1.62V to 3.6V, allowing flexible power design. For high-speed interfaces, follow the layout guidelines in the datasheet to maintain signal integrity.
直接替换替代料： STM32H7A3RGT6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32H7A3RGT6 （相同外形与封装尺寸） ——差异在于 Core, Package, SRAM.
快速对比工具——选择替代料号进行并排对比：
STM32H743RGT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32H750RBT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32H753RGT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32H7A3RIT6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$10.2 / 个
查看数据手册 →STM32H7A3RGT6Q
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32H7A3RGT6 最大额定值与电气特性
| Core | ARM Cortex-M7 |
| Maximum Clock Speed | 280 MHz |
| Flash Memory | 2 MB |
| SRAM | 1.4 MB |
| 封装 | LQFP64 |
| Supply Voltage Range | 1.62 V to 3.6 V |
| 工作温度范围 | -40C to +85C |
| Number of I/O Pins | 50 |
| ADC Resolution | 16-bit |
| DAC Resolution | 12-bit |
| Communication Interfaces | Ethernet, USB, UART, SPI, I2C |
| Timers | Multiple 16-bit and 32-bit timers |
| Cryptographic Acceleration | Yes (hardware) |
| True Random Number Generator | Yes |
| RoHS 状态 | Compliant |
STM32H7A3RGT6 引脚配置
| 引脚 1 | VBAT — Battery backup supply |
| 引脚 2 | PC13 — GPIO / RTC output |
| 引脚 3 | PC14 — GPIO / OSC32_IN |
| 引脚 4 | PC15 — GPIO / OSC32_OUT |
| 引脚 5 | PF0 — GPIO |
| 引脚 6 | PF1 — GPIO |
| 引脚 7 | NRST — Reset (active low) |
| 引脚 8 | VDD — Digital power supply |
| 引脚 9 | VSS — Ground |
| 引脚 10 | PA0 — GPIO / ADC input |
| 引脚 11 | PA1 — GPIO / ADC input |
| 引脚 12 | PA2 — GPIO / USART2_TX |
典型应用
STM32H7A3RGT6 适用于 6 应用s: Industrial Automation, Motor Control, Smart Home Devices, High-End Consumer Electronics, IoT Gateways, Medical Devices.
Industrial Automation
The STM32H7A3RGT6 is ideal for industrial automation due to its high processing power, large memory, and rich connectivity. Its 280 MHz Cortex-M7 core with FPU enables real-time control of complex processes, while the multiple UART, SPI, and I2C interfaces allow seamless integration with sensors and actuators. The device's support for external memory interfaces enables data logging and buffering for predictive maintenance systems. Its wide supply voltage range and robust design make it suitable for harsh industrial environments.
推荐
Motor Control
The STM32H7A3RGT6 excels in motor control applications, leveraging its high clock speed and advanced timer peripherals to generate precise PWM signals. The Cortex-M7 core with double-precision FPU handles complex control algorithms like field-oriented control (FOC) with ease. The device's multiple ADCs enable accurate current and voltage sensing, while its rich communication interfaces support real-time monitoring and diagnostics. The large SRAM allows for efficient data buffering and algorithm execution, making it a top choice for high-performance motor drives.
推荐
Smart Home Devices
The STM32H7A3RGT6 is well-suited for smart home devices, offering a balance of performance and power efficiency. Its low-power modes and wide supply voltage range support battery-operated devices, while its connectivity options (Ethernet, USB, UART, SPI, I2C) enable seamless integration into home networks. The device's security features, including hardware cryptographic acceleration, protect sensitive data in smart home applications. The Chrom-ART Accelerator enhances graphical user interfaces on connected displays, making it ideal for smart thermostats, security panels, and voice assistants.
推荐
High-End Consumer Electronics
The STM32H7A3RGT6 is designed for high-end consumer electronics, such as smart speakers, gaming peripherals, and advanced wearables. Its 280 MHz Cortex-M7 core and large memory enable complex audio processing and real-time user interfaces. The device's rich peripheral set, including multiple timers and communication interfaces, supports a wide range of sensors and actuators. The Chrom-ART Accelerator and external memory interfaces allow for high-resolution graphics and smooth animations. Its security features ensure secure firmware updates and data protection, making it a reliable choice for premium consumer products.
推荐
IoT Gateways
The STM32H7A3RGT6 is an excellent choice for IoT gateways, providing the processing power and connectivity needed to aggregate data from multiple sensors and devices. Its Ethernet and USB interfaces enable high-speed data transfer to the cloud, while its multiple UART, SPI, and I2C interfaces connect to various sensor nodes. The device's large memory supports data buffering and protocol stacks, and its security features ensure secure communication. The low-power modes help reduce energy consumption in always-on gateway applications.
推荐
Medical Devices
The STM32H7A3RGT6 is suitable for medical devices that require high reliability and performance, such as patient monitors, infusion pumps, and diagnostic equipment. Its high clock speed and FPU enable real-time signal processing for accurate measurements. The device's rich analog peripherals, including ADCs and DACs, interface with sensors and actuators. The large memory supports complex algorithms and data logging. Its security features protect patient data, and its wide operating temperature range ensures reliable operation in clinical environments.
推荐
推荐产品汇总
工程参考数据： STM32H7A3RGT6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32H743RGT6 | STM32H750RBT6 | STM32H753RGT6 |
|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Maximum Clock Speed | 280 MHz | 480 MHz | 480 MHz | 480 MHz |
| Flash Memory | 2 MB | 2 MB | 128 KB | 2 MB |
| SRAM | 1.4 MB | 1 MB | 1 MB | 1 MB |
| Supply Voltage Range | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V |
| Cryptographic Acceleration | Yes | Yes | Yes | Yes |
| TRNG | Yes | Yes | Yes | Yes |
关键差异点
- Larger SRAM (1.4 MB) compared to alternatives （对比 STM32H743RGT6)
- Lower maximum clock speed (280 MHz) but lower power consumption （对比 STM32H743RGT6)
- Same package and pin compatibility （对比 STM32H750RBT6)
设计说明
Ensure proper power supply decoupling with 100 nF capacitors close to each power pin and a 4.7 uF bulk capacitor. The device supports a wide supply voltage range of 1.62V to 3.6V, allowing flexible power design. For high-speed interfaces, follow the layout guidelines in the datasheet to maintain signal integrity.
For high-speed interfaces like Ethernet and USB, follow the layout guidelines in the datasheet to maintain signal integrity. Use controlled impedance traces and keep trace lengths matched. Place the crystal oscillator close to the MCU and ensure proper grounding.
The STM32H7A3RGT6 in LQFP64 package has a thermal resistance of approximately 45 C/W (theta_JA). At 280 MHz with full peripheral usage, power dissipation can reach 500 mW, resulting in a temperature rise of about 22.5C above ambient. Ensure adequate airflow or a thermal pad for high-temperature environments.
合规信息
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - choose STM32H7A3RGT6Q for automotive.
