STM32H7A3VGT6 - 280MHz Cortex-M7 MCU, 1MB Flash | STMicroelectronics
MPN: STM32H7A3VGT6 ✓ Hoạt độngSTM32H7A3VGT6 Tóm tắt
What is a microcontroller (MCU)? A microcontroller is a compact integrated circuit that combines a processor core, memory, and programmable input/output peripherals on a single chip. It is the brain of embedded systems, executing firmware to control devices, process sensor data, and communicate with other systems. MCUs are classified within the broader hierarchy of embedded processors, which includes microprocessors, digital signal processors (DSPs), and system-on-chips (SoCs). The STM32H7A3VGT6 sits at the high-performance end of the MCU spectrum, offering near-DSP-level compute capability.
Key features include a 280 MHz Arm Cortex-M7 core with double-precision FPU, 1.4 MB flash, 1.4 MB SRAM, and a rich set of peripherals: multiple 16-bit and 32-bit timers, 12-bit ADCs, 12-bit DACs, and advanced communication interfaces (USART, SPI, I2C, FDCAN, USB OTG, Ethernet MAC). The device also integrates a hardware cryptographic accelerator (AES, DES, 3DES, SHA-1, SHA-256) and a true random number generator (TRNG) for secure applications.
Technically, the STM32H7A3VGT6 is built on a 40nm process, enabling high clock speeds with moderate power consumption. The Cortex-M7 core features a 6-stage pipeline, branch prediction, and a memory protection unit (MPU), supporting real-time deterministic execution. The device supports external memory interfaces (FMC) for SDRAM, NOR, and NAND flash expansion, and a flexible memory controller for parallel and serial interfaces.
Typical applications include industrial automation (PLC, motor control), medical devices (patient monitors, infusion pumps), consumer electronics (smart speakers, wearables), and IoT gateways. The high core speed and rich peripherals make it suitable for real-time control, audio processing, and edge AI inference.
When designing with this device, ensure adequate decoupling on all power pins and a proper crystal oscillator layout for the HSE. The 100-pin LQFP package requires careful thermal management; use a 4-layer PCB with a solid ground plane to dissipate heat effectively.
Bộ thay thế dễ dàng lắp đặt cho STM32H7A3VGT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32H7A3VGT6 (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, SRAM, Flash Memory, RoHS Status.
STM32H7A3VIT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32H750VBT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32H743VIT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32H753VIT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32H7A3VGT6 Tỷ lệ tối đa & tính chất điện
| Core | Arm Cortex-M7 |
| Max Clock Speed | 280 MHz |
| Flash Memory | 1.4 MB |
| SRAM | 1.4 MB |
| Hộp | LQFP-100 (14x14 mm) |
| Operating Voltage | 1.62 V to 3.6 V |
| GPIO Pins | 80 |
| ADC | 3x 12-bit, up to 3.6 MSPS |
| DAC | 2x 12-bit |
| Timers | 22 (16-bit and 32-bit) |
| Communication Interfaces | USART, SPI, I2C, FDCAN, USB OTG, Ethernet MAC |
| Cryptographic Acceleration | AES, DES, 3DES, SHA-1, SHA-256 |
| Nhiệt độ hoạt động | -40C to +85C |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32H7A3VGT6
| Chân 1 | VBAT — Battery backup supply |
| Chân 2 | PC13 — GPIO / RTC output |
| Chân 3 | PC14 — GPIO / OSC32_IN |
| Chân 4 | PC15 — GPIO / OSC32_OUT |
| Chân 5 | PF0 — GPIO |
| Chân 6 | PF1 — GPIO |
| Chân 7 | PF2 — GPIO |
| Chân 8 | PF3 — GPIO |
| Chân 9 | PF4 — GPIO |
| Chân 10 | PF5 — GPIO |
| Chân 11 | VSS — Ground |
| Chân 12 | VDD — Power supply |
| Chân 13 | PF6 — GPIO |
| Chân 14 | PF7 — GPIO |
| Chân 15 | PF8 — GPIO |
| Chân 16 | PF9 — GPIO |
| Chân 17 | PF10 — GPIO |
| Chân 18 | PF11 — GPIO |
| Chân 19 | PF12 — GPIO |
| Chân 20 | PF13 — GPIO |
| Chân 21 | PF14 — GPIO |
| Chân 22 | PF15 — GPIO |
| Chân 23 | VSS — Ground |
| Chân 24 | VDD — Power supply |
| Chân 25 | PG0 — GPIO |
| Chân 26 | PG1 — GPIO |
| Chân 27 | PG2 — GPIO |
| Chân 28 | PG3 — GPIO |
| Chân 29 | PG4 — GPIO |
| Chân 30 | PG5 — GPIO |
| Chân 31 | PG6 — GPIO |
| Chân 32 | PG7 — GPIO |
| Chân 33 | PG8 — GPIO |
| Chân 34 | PG9 — GPIO |
| Chân 35 | PG10 — GPIO |
| Chân 36 | PG11 — GPIO |
| Chân 37 | PG12 — GPIO |
| Chân 38 | PG13 — GPIO |
| Chân 39 | PG14 — GPIO |
| Chân 40 | PG15 — GPIO |
| Chân 41 | VSS — Ground |
| Chân 42 | VDD — Power supply |
| Chân 43 | PH0 — GPIO / OSC_IN |
| Chân 44 | PH1 — GPIO / OSC_OUT |
| Chân 45 | PH2 — GPIO |
| Chân 46 | PH3 — GPIO |
| Chân 47 | PH4 — GPIO |
| Chân 48 | PH5 — GPIO |
| Chân 49 | PH6 — GPIO |
| Chân 50 | PH7 — GPIO |
| Chân 51 | PH8 — GPIO |
| Chân 52 | PH9 — GPIO |
| Chân 53 | PH10 — GPIO |
| Chân 54 | PH11 — GPIO |
| Chân 55 | PH12 — GPIO |
| Chân 56 | PH13 — GPIO |
| Chân 57 | PH14 — GPIO |
| Chân 58 | PH15 — GPIO |
| Chân 59 | VSS — Ground |
| Chân 60 | VDD — Power supply |
| Chân 61 | PI0 — GPIO |
| Chân 62 | PI1 — GPIO |
| Chân 63 | PI2 — GPIO |
| Chân 64 | PI3 — GPIO |
| Chân 65 | PI4 — GPIO |
| Chân 66 | PI5 — GPIO |
| Chân 67 | PI6 — GPIO |
| Chân 68 | PI7 — GPIO |
| Chân 69 | PI8 — GPIO |
| Chân 70 | PI9 — GPIO |
| Chân 71 | VSS — Ground |
| Chân 72 | VDD — Power supply |
| Chân 73 | PA0 — GPIO / ADC |
| Chân 74 | PA1 — GPIO / ADC |
| Chân 75 | PA2 — GPIO / USART |
| Chân 76 | PA3 — GPIO / USART |
| Chân 77 | PA4 — GPIO / DAC |
| Chân 78 | PA5 — GPIO / DAC |
| Chân 79 | PA6 — GPIO / SPI |
| Chân 80 | PA7 — GPIO / SPI |
| Chân 81 | PA8 — GPIO / TIM |
| Chân 82 | PA9 — GPIO / USART |
| Chân 83 | PA10 — GPIO / USART |
| Chân 84 | PA11 — GPIO / USB |
| Chân 85 | PA12 — GPIO / USB |
| Chân 86 | PA13 — GPIO / SWDIO |
| Chân 87 | PA14 — GPIO / SWCLK |
| Chân 88 | PA15 — GPIO / JTAG |
| Chân 89 | VSS — Ground |
| Chân 90 | VDD — Power supply |
| Chân 91 | PB0 — GPIO / ADC |
| Chân 92 | PB1 — GPIO / ADC |
| Chân 93 | PB2 — GPIO |
| Chân 94 | PB3 — GPIO / SPI |
| Chân 95 | PB4 — GPIO / SPI |
| Chân 96 | PB5 — GPIO / I2C |
| Chân 97 | PB6 — GPIO / I2C |
| Chân 98 | PB7 — GPIO / I2C |
| Chân 99 | PB8 — GPIO / FDCAN |
| Chân 100 | PB9 — GPIO / FDCAN |
Ứng dụng tiêu biểu
STM32H7A3VGT6 phù hợp cho 6 Áp dụngs: Industrial Automation, Medical Devices, IoT Gateways, Consumer Electronics, Audio Processing, Edge AI.
Industrial Automation
The STM32H7A3VGT6 is ideal for industrial automation due to its 280 MHz Cortex-M7 core, rich communication interfaces (FDCAN, Ethernet MAC, USART), and advanced timers for precise motor control. It can handle real-time control loops, PLC logic, and HMI interfaces simultaneously. The device's 1.4 MB flash and 1.4 MB SRAM provide ample space for complex firmware, while the cryptographic accelerator ensures secure communication in industrial networks. Its wide operating voltage range (1.62V to 3.6V) and -40C to +85C temperature range make it suitable for harsh factory environments. The FMC interface allows external memory expansion for data logging, and the multiple ADCs enable high-speed sensor acquisition for process monitoring.
Được đề xuất
Medical Devices
In medical devices, the STM32H7A3VGT6 provides the computational power and reliability required for patient monitoring, infusion pumps, and diagnostic equipment. The 280 MHz core enables real-time signal processing for ECG, SpO2, and blood pressure monitoring. The device's low power consumption in sleep modes extends battery life in portable devices. The cryptographic accelerator ensures secure data transmission for patient privacy compliance. The multiple timers and ADCs support precise sensor interfacing, while the Ethernet MAC enables connectivity to hospital networks. The device's robust design, with a wide temperature range and high reliability, meets the stringent requirements of medical applications.
Được đề xuất
IoT Gateways
The STM32H7A3VGT6 is well-suited for IoT gateways, offering a balance of performance and connectivity. The Ethernet MAC and USB OTG interfaces enable wired and wireless connectivity, while the cryptographic accelerator secures data transmission. The 280 MHz core can handle protocol stacks (MQTT, CoAP) and edge processing. The 1.4 MB flash and 1.4 MB SRAM support complex applications and data buffering. The device's multiple UARTs and SPIs allow connection to various sensors and radios (Wi-Fi, LoRa, Zigbee). Its low power modes are beneficial for always-on gateways, and the FMC interface can expand storage for local data logging.
Được đề xuất
Consumer Electronics
For consumer electronics, the STM32H7A3VGT6 delivers high performance for audio processing, smart home devices, and wearables. The 280 MHz Cortex-M7 with FPU enables audio codec processing and voice recognition. The device's rich peripheral set supports touchscreens, displays, and various sensors. The low power consumption in standby mode extends battery life in portable devices. The cryptographic accelerator enables secure firmware updates and data protection. The device's small LQFP-100 package is suitable for compact designs, and the multiple communication interfaces allow connectivity to other devices in the smart home ecosystem.
Được đề xuất
Audio Processing
The STM32H7A3VGT6 is excellent for audio processing applications, including smart speakers, audio interfaces, and voice-controlled devices. The 280 MHz Cortex-M7 with double-precision FPU can handle real-time audio DSP algorithms, such as filtering, equalization, and noise cancellation. The device's multiple I2S interfaces support high-quality audio codecs, and the DMA controllers enable efficient data transfer without CPU intervention. The 1.4 MB SRAM provides ample buffering for audio streams. The cryptographic accelerator can secure audio content, and the low power modes are beneficial for battery-powered audio devices. The device's high performance and rich audio peripherals make it a top choice for audio applications.
Được đề xuất
Edge AI
The STM32H7A3VGT6 supports edge AI inference for applications like predictive maintenance, anomaly detection, and image classification. The 280 MHz Cortex-M7 with FPU can run lightweight neural networks using frameworks like TensorFlow Lite for Microcontrollers. The device's 1.4 MB flash and 1.4 MB SRAM provide space for model storage and inference buffers. The multiple ADCs and communication interfaces enable sensor data acquisition for AI models. The cryptographic accelerator ensures secure model updates. The device's low power consumption is beneficial for battery-powered edge devices, and the high performance enables real-time inference for time-critical applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32H7A3VGT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32H7A3VIT6 | STM32H750VBT6 | STM32H743VIT6 | STM32H753VIT6 |
|---|---|---|---|---|---|
| Package | LQFP-100 | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Max Clock Speed | 280 MHz | 280 MHz | 480 MHz | 480 MHz | 480 MHz |
| Flash Memory | 1.4 MB | 2 MB | 128 KB | 2 MB | 2 MB |
| SRAM | 1.4 MB | 1.4 MB | 1 MB | 1 MB | 1 MB |
| Operating Voltage | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V |
| GPIO Pins | 80 | 80 | 80 | 80 | 80 |
| Ethernet MAC | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Higher SRAM capacity (1.4 MB) than many competitors (vsSTM32H750VBT6)
- Lower power consumption than STM32H743VIT6 (vsSTM32H743VIT6)
- Cost-effective balance of performance and memory (vsSTM32H7A3VIT6)
Ghi chú thiết kế
The STM32H7A3VGT6 operates from 1.62V to 3.6V. Use a dedicated 3.3V rail with a low-dropout regulator (LDO) for the VDD pins, and a separate 1.8V rail for the VDDA analog supply if high ADC accuracy is required. Place 100nF decoupling capacitors on each VDD pin and a 4.7uF bulk capacitor on the main supply. For the VBAT pin, connect a backup battery or tie to VDD through a diode to maintain RTC operation during power loss.
For the LQFP-100 package, use a 4-layer PCB with a solid ground plane directly under the IC. Route the crystal oscillator (HSE) traces as short as possible with a ground guard ring to minimize noise. Place the 8 MHz crystal and load capacitors (typically 10-20pF) close to the PH0/PH1 pins. For the ADC inputs, use a star-ground topology and separate analog ground (VSSA) from digital ground to reduce noise coupling.
The STM32H7A3VGT6 can dissipate significant power at 280 MHz. The LQFP-100 package has a thermal resistance (theta_JA) of approximately 40-50 C/W. For high-current applications, ensure adequate copper pour on the PCB and consider a thermal via array under the exposed pad (if available). Monitor the junction temperature to stay within the -40C to +85C operating range. For continuous operation at maximum clock, a small heatsink or forced airflow may be necessary.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive grade.
