STM32H7A3VGT6 - 280MHz Cortex-M7 MCU, 1MB Flash | STMicroelectronics
Référence : STM32H7A3VGT6 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 |
STM32H7A3VGT6 Présentation
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.
Alternatives de remplacement direct pour STM32H7A3VGT6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32H7A3VGT6 (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, SRAM, Flash Memory, RoHS Status.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STM32H7A3VIT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$10.45 / unité
Voir la fiche technique →STM32H750VBT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$5.25 / unité
Voir la fiche technique →STM32H743VIT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$7.98 / unité
Voir la fiche technique →STM32H753VIT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32H7A3VGT6 Valeurs maximales et caractéristiques électriques
| Core | Arm Cortex-M7 |
| Max Clock Speed | 280 MHz |
| Flash Memory | 1.4 MB |
| SRAM | 1.4 MB |
| Boîtier | 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 |
| Température de fonctionnement | -40C to +85C |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de STM32H7A3VGT6
| Broche 1 | VBAT — Battery backup supply |
| Broche 2 | PC13 — GPIO / RTC output |
| Broche 3 | PC14 — GPIO / OSC32_IN |
| Broche 4 | PC15 — GPIO / OSC32_OUT |
| Broche 5 | PF0 — GPIO |
| Broche 6 | PF1 — GPIO |
| Broche 7 | PF2 — GPIO |
| Broche 8 | PF3 — GPIO |
| Broche 9 | PF4 — GPIO |
| Broche 10 | PF5 — GPIO |
| Broche 11 | VSS — Ground |
| Broche 12 | VDD — Power supply |
| Broche 13 | PF6 — GPIO |
| Broche 14 | PF7 — GPIO |
| Broche 15 | PF8 — GPIO |
| Broche 16 | PF9 — GPIO |
| Broche 17 | PF10 — GPIO |
| Broche 18 | PF11 — GPIO |
| Broche 19 | PF12 — GPIO |
| Broche 20 | PF13 — GPIO |
| Broche 21 | PF14 — GPIO |
| Broche 22 | PF15 — GPIO |
| Broche 23 | VSS — Ground |
| Broche 24 | VDD — Power supply |
| Broche 25 | PG0 — GPIO |
| Broche 26 | PG1 — GPIO |
| Broche 27 | PG2 — GPIO |
| Broche 28 | PG3 — GPIO |
| Broche 29 | PG4 — GPIO |
| Broche 30 | PG5 — GPIO |
| Broche 31 | PG6 — GPIO |
| Broche 32 | PG7 — GPIO |
| Broche 33 | PG8 — GPIO |
| Broche 34 | PG9 — GPIO |
| Broche 35 | PG10 — GPIO |
| Broche 36 | PG11 — GPIO |
| Broche 37 | PG12 — GPIO |
| Broche 38 | PG13 — GPIO |
| Broche 39 | PG14 — GPIO |
| Broche 40 | PG15 — GPIO |
| Broche 41 | VSS — Ground |
| Broche 42 | VDD — Power supply |
| Broche 43 | PH0 — GPIO / OSC_IN |
| Broche 44 | PH1 — GPIO / OSC_OUT |
| Broche 45 | PH2 — GPIO |
| Broche 46 | PH3 — GPIO |
| Broche 47 | PH4 — GPIO |
| Broche 48 | PH5 — GPIO |
| Broche 49 | PH6 — GPIO |
| Broche 50 | PH7 — GPIO |
| Broche 51 | PH8 — GPIO |
| Broche 52 | PH9 — GPIO |
| Broche 53 | PH10 — GPIO |
| Broche 54 | PH11 — GPIO |
| Broche 55 | PH12 — GPIO |
| Broche 56 | PH13 — GPIO |
| Broche 57 | PH14 — GPIO |
| Broche 58 | PH15 — GPIO |
| Broche 59 | VSS — Ground |
| Broche 60 | VDD — Power supply |
| Broche 61 | PI0 — GPIO |
| Broche 62 | PI1 — GPIO |
| Broche 63 | PI2 — GPIO |
| Broche 64 | PI3 — GPIO |
| Broche 65 | PI4 — GPIO |
| Broche 66 | PI5 — GPIO |
| Broche 67 | PI6 — GPIO |
| Broche 68 | PI7 — GPIO |
| Broche 69 | PI8 — GPIO |
| Broche 70 | PI9 — GPIO |
| Broche 71 | VSS — Ground |
| Broche 72 | VDD — Power supply |
| Broche 73 | PA0 — GPIO / ADC |
| Broche 74 | PA1 — GPIO / ADC |
| Broche 75 | PA2 — GPIO / USART |
| Broche 76 | PA3 — GPIO / USART |
| Broche 77 | PA4 — GPIO / DAC |
| Broche 78 | PA5 — GPIO / DAC |
| Broche 79 | PA6 — GPIO / SPI |
| Broche 80 | PA7 — GPIO / SPI |
| Broche 81 | PA8 — GPIO / TIM |
| Broche 82 | PA9 — GPIO / USART |
| Broche 83 | PA10 — GPIO / USART |
| Broche 84 | PA11 — GPIO / USB |
| Broche 85 | PA12 — GPIO / USB |
| Broche 86 | PA13 — GPIO / SWDIO |
| Broche 87 | PA14 — GPIO / SWCLK |
| Broche 88 | PA15 — GPIO / JTAG |
| Broche 89 | VSS — Ground |
| Broche 90 | VDD — Power supply |
| Broche 91 | PB0 — GPIO / ADC |
| Broche 92 | PB1 — GPIO / ADC |
| Broche 93 | PB2 — GPIO |
| Broche 94 | PB3 — GPIO / SPI |
| Broche 95 | PB4 — GPIO / SPI |
| Broche 96 | PB5 — GPIO / I2C |
| Broche 97 | PB6 — GPIO / I2C |
| Broche 98 | PB7 — GPIO / I2C |
| Broche 99 | PB8 — GPIO / FDCAN |
| Broche 100 | PB9 — GPIO / FDCAN |
Applications typiques
STM32H7A3VGT6 convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32H7A3VGT6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Higher SRAM capacity (1.4 MB) than many competitors (vs STM32H750VBT6)
- Lower power consumption than STM32H743VIT6 (vs STM32H743VIT6)
- Cost-effective balance of performance and memory (vs STM32H7A3VIT6)
Notes de conception
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.
Informations de conformité
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive grade.
