STM32H7A3VIT6 - 280MHz Cortex-M7 MCU, 2MB Flash, LQFP-100 | STMicroelectronics
MPN: STM32H7A3VIT6 ✓ AktifSTM32H7A3VIT6 Ringkasan
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (SRAM), and a wide range of peripheral interfaces into one package. Within the broader semiconductor taxonomy, an MCU sits under microcontrollers, which are a subcategory of integrated circuits (ICs); the Cortex-M7 core specifically belongs to the ARM Cortex-M family of embedded cores, optimized for deterministic real-time performance and DSP workloads. The STM32H7 series extends this family with the highest clock rates and largest memory footprints in the STM32 portfolio.
Key features include a 16-bit ADCs sampling up to 3.6 MSPS, fast 12-bit DACs, two USB 2.0 Full-Speed/High-Speed OTG controllers, multiple CAN FD, SDMMC, FMC, and a TFT-LCD controller. On-chip math accelerators (FMAC, CORDIC) and the Chrom-ART (DMA2D) graphics engine offload CPU-intensive operations, while hardware cryptographic accelerators and a true random number generator (TRNG) support secure connectivity use cases.
The Cortex-M7 core includes a double-precision FPU, L1 instruction and data caches (16 KB each), and a tightly-coupled SRAM region for zero-wait-state execution, enabling 280 MHz operation with sustained DSP throughput. The bus matrix is multi-layer AHB, allowing concurrent high-bandwidth access between the CPU, the Chrom-ART engine, and the SDMMC/USB peripherals without bus starvation.
Typical applications include industrial motor drives, factory automation PLCs, audio processing and professional audio interfaces, HMI panels with TFT displays, IoT edge nodes with secure connectivity, and automotive-grade body and comfort modules (when ordered in the AEC-Q100 'Q' suffix variant).
When designing with the STM32H7A3VIT6, pay close attention to power-supply decoupling and trace impedance around the high-speed SDMMC and USB signals. Proper boot-mode configuration on the BOOT0 pin and OTP area management is essential for field-deployable firmware security.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone.
Alternatif penggantian untuk STM32H7A3VIT6 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian STM32H7A3VIT6 (sama faktor bentuk dan footprint) — berbeda di dalam Package, ADC, Core, SRAM, DAC.
STM32H7A3VIT6Q
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
STM32H7A3RIT6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32H753XIH6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32H745IIT6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32F767IIT6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32F765IGT6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32F767IGK6
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →STM32H7A3VIT6 Rating Maksimal & Karakteristik Listrik
| Core | ARM Cortex-M7 (32-bit) |
| Maximum CPU Clock | 280 MHz |
| Flash Memory | 2 MB (2M x 8) |
| SRAM | 1.4 MB total (SRAM1/SRAM2/SRAM3/SRAM4 + DTCM + AXI SRAM) |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| Paket | 100-pin LQFP (14x14 mm) |
| Suhu Kerja | -40 C to +85 C (industrial grade) |
| ADC | 3 x 16-bit, up to 3.6 MSPS |
| DAC | 2 x 12-bit |
| Communication | USB 2.0 FS+HS OTG, CAN FD, USART/UART, SPI, I2C, SAI, SDMMC, FMC |
| Graphics | Chrom-ART (DMA2D) accelerator, TFT-LCD controller (LTDC) |
| Math Accelerators | FMAC, CORDIC, single-precision hardware MAC |
| Security | Cryptographic accelerators, TRNG, secure boot support |
| FPU | Double-precision IEEE 754 |
| Cache | 16 KB I-cache + 16 KB D-cache |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
Konfigurasi Pin STM32H7A3VIT6
| Pin produk 1 | PE2 — General-purpose I/O (TRACECLK on some packages) |
| Pin produk 2 | PE3 — General-purpose I/O (TRACED0) |
| Pin produk 3 | PE4 — General-purpose I/O (TRACED1) |
| Pin produk 4 | PE5 — General-purpose I/O (TRACED2) |
| Pin produk 5 | PE6 — General-purpose I/O (TRACED3) |
| Pin produk 6 | VBAT — Backup battery supply for RTC/TAMP |
| Pin produk 7 | PC13 — GPIO / TAMPER-RTC (anti-tamper) |
| Pin produk 8 | PC14 — GPIO / OSC32_IN (LSE crystal) |
| Pin produk 9 | PC15 — GPIO / OSC32_OUT (LSE crystal) |
| Pin produk 10 | VSS — Ground reference |
| Pin produk 11 | VDD — Digital supply (1.62-3.6 V) |
| Pin produk 12 | PH0 — OSC_IN (HSE crystal) |
| Pin produk 13 | PH1 — OSC_OUT (HSE crystal) |
| Pin produk 14 | NRST — Reset input (active low) |
| Pin produk 15 | PC0 — GPIO / ADC1_INP10 |
| Pin produk 16 | PC1 — GPIO / ADC1_INP11 / DAC2 |
| Pin produk 17 | PC2 — GPIO / ADC1_INP12 |
| Pin produk 18 | PC3 — GPIO / ADC1_INP13 |
| Pin produk 19 | VSSA — Analog ground |
| Pin produk 20 | VDDA — Analog supply (1.62-3.6 V) |
| Pin produk 21 | PA0 — GPIO / ADC1_INP0 / TIM5_CH1 |
| Pin produk 22 | PA1 — GPIO / ADC1_INP1 / TIM5_CH2 |
| Pin produk 23 | PA2 — GPIO / ADC1_INP2 / USART2_TX |
| Pin produk 24 | PA3 — GPIO / ADC1_INP3 / USART2_RX |
| Pin produk 25 | VSS — Ground reference |
| Pin produk 26 | VDD — Digital supply (1.62-3.6 V) |
| Pin produk 27 | PA4 — GPIO / ADC1_INP4 / DAC1 |
| Pin produk 28 | PA5 — GPIO / ADC1_INP5 |
| Pin produk 29 | PA6 — GPIO / ADC1_INP6 / TIM13_CH1 |
| Pin produk 30 | PA7 — GPIO / ADC1_INP7 / TIM14_CH1 |
| Pin produk 31 | PC4 — GPIO / ADC2_INP4 |
| Pin produk 32 | PC5 — GPIO / ADC2_INP5 |
| Pin produk 33 | PB0 — GPIO / ADC2_INP8 / TIM3_CH3 |
| Pin produk 34 | PB1 — GPIO / ADC2_INP9 / TIM3_CH4 |
| Pin produk 35 | PB2 — GPIO / BOOT1 |
| Pin produk 36 | PE7 — GPIO / TIM1_ETR |
| Pin produk 37 | PE8 — GPIO / TIM1_CH1N |
| Pin produk 38 | PE9 — GPIO / TIM1_CH1 |
| Pin produk 39 | PE10 — GPIO / TIM1_CH2N |
| Pin produk 40 | PE11 — GPIO / TIM1_CH2 |
| Pin produk 41 | PE12 — GPIO / TIM1_CH3N |
| Pin produk 42 | PE13 — GPIO / TIM1_CH3 |
| Pin produk 43 | PE14 — GPIO / TIM1_CH4 |
| Pin produk 44 | PE15 — GPIO / TIM1_BKIN |
| Pin produk 45 | PB10 — GPIO / I2C2_SCL / USART3_TX |
| Pin produk 46 | PB11 — GPIO / I2C2_SDA / USART3_RX |
| Pin produk 47 | VCAP_1 — Core voltage decoupling (1.0 V regulator output) |
| Pin produk 48 | VDD — Digital supply (1.62-3.6 V) |
| Pin produk 49 | PB12 — GPIO / SPI2_NSS / TIM1_BKIN |
| Pin produk 50 | PB13 — GPIO / SPI2_SCK |
| Pin produk 51 | PB14 — GPIO / SPI2_MISO |
| Pin produk 52 | PB15 — GPIO / SPI2_MOSI |
| Pin produk 53 | PD8 — GPIO / USART3_TX |
| Pin produk 54 | PD9 — GPIO / USART3_RX |
| Pin produk 55 | PD10 — GPIO |
| Pin produk 56 | PD11 — GPIO |
| Pin produk 57 | PD12 — GPIO / TIM4_CH1 |
| Pin produk 58 | PD13 — GPIO / TIM4_CH2 |
| Pin produk 59 | PD14 — GPIO / TIM4_CH3 |
| Pin produk 60 | PD15 — GPIO / TIM4_CH4 |
| Pin produk 61 | PC6 — GPIO / TIM3_CH1 / USART6_TX |
| Pin produk 62 | PC7 — GPIO / TIM3_CH2 / USART6_RX |
| Pin produk 63 | PC8 — GPIO / TIM3_CH3 / SDMMC1_D0 |
| Pin produk 64 | PC9 — GPIO / TIM3_CH4 / SDMMC1_D1 |
| Pin produk 65 | PA8 — GPIO / TIM1_CH1 / MCO1 |
| Pin produk 66 | PA9 — GPIO / USART1_TX |
| Pin produk 67 | PA10 — GPIO / USART1_RX |
| Pin produk 68 | PA11 — GPIO / USB1_DM |
| Pin produk 69 | PA12 — GPIO / USB1_DP |
| Pin produk 70 | PA13 — GPIO / SWDIO (JTMS) |
| Pin produk 71 | VCAP_2 — Core voltage decoupling (1.0 V regulator output) |
| Pin produk 72 | VDD — Digital supply (1.62-3.6 V) |
| Pin produk 73 | PA14 — GPIO / SWCLK (JTCK) |
| Pin produk 74 | PA15 — GPIO / JTDI / TIM2_CH1 |
| Pin produk 75 | PC10 — GPIO / SDMMC1_D2 / USART3_TX |
| Pin produk 76 | PC11 — GPIO / SDMMC1_D3 / USART3_RX |
| Pin produk 77 | PC12 — GPIO / SDMMC1_CK |
| Pin produk 78 | PD0 — GPIO / CAN1_RX / FMC_D2 |
| Pin produk 79 | PD1 — GPIO / CAN1_TX / FMC_D3 |
| Pin produk 80 | PD2 — GPIO / SDMMC1_CMD / TIM3_ETR |
| Pin produk 81 | PD3 — GPIO / USART2_CTS |
| Pin produk 82 | PD4 — GPIO / USART2_RTS / FMC_NOE |
| Pin produk 83 | PD5 — GPIO / USART2_TX / FMC_NWE |
| Pin produk 84 | PD6 — GPIO / USART2_RX / FMC_NWAIT |
| Pin produk 85 | PD7 — GPIO / USART2_CK / FMC_NE1 |
| Pin produk 86 | PB3 — GPIO / JTDO / TIM2_CH2 |
| Pin produk 87 | PB4 — GPIO / JTRST / TIM3_CH1 |
| Pin produk 88 | PB5 — GPIO / I2C1_SMBAI / TIM3_CH2 |
| Pin produk 89 | PB6 — GPIO / I2C1_SCL / USART1_TX |
| Pin produk 90 | PB7 — GPIO / I2C1_SDA / USART1_RX |
| Pin produk 91 | BOOT0 — Boot mode selection |
| Pin produk 92 | PB8 — GPIO / I2C1_SCL / TIM4_CH3 |
| Pin produk 93 | PB9 — GPIO / I2C1_SDA / TIM4_CH4 |
| Pin produk 94 | PE0 — GPIO / TIM4_ETR |
| Pin produk 95 | PE1 — GPIO |
| Pin produk 96 | VSS — Ground reference |
| Pin produk 97 | VSS — Ground reference (additional) |
| Pin produk 98 | VSS — Ground reference (additional) |
| Pin produk 99 | VCAP_3 — Core voltage decoupling (1.0 V regulator output) |
| Pin produk 100 | VSS — Ground reference |
Aplikasi Umum
STM32H7A3VIT6 cocok untuk 7 aplikasis: Industrial Motor Drives, Human-Machine Interface (HMI) Panels, Professional Audio Interfaces and DSP, Factory Automation PLCs and Edge Gateways, Medical Diagnostic and Monitoring Equipment, Automotive Body and Comfort Modules, IoT Edge Devices with Secure Connectivity.
Industrial Motor Drives
The STM32H7A3VIT6 is a strong fit for industrial motor drives because its Cortex-M7 core runs at 280 MHz with hardware FMAC and CORDIC accelerators that offload field-oriented control (FOC) math. Engineers benefit from three 16-bit ADCs sampling up to 3.6 MSPS for simultaneous current/voltage sensing, plus HRTIM-style timers (per the STM32H7 peripheral set) for precise PWM generation. The 100-pin LQFP gives enough GPIO for multiple encoder/HALL inputs and CAN FD for drive networking. Designers migrating from F7 parts gain ~30 percent extra CPU headroom, allowing longer control loops or onboard condition monitoring.
Direkomendasikan
Human-Machine Interface (HMI) Panels
For HMI panels, the STM32H7A3VIT6's integrated LTDC controller and Chrom-ART DMA2D engine drive TFT-LCD displays up to XGA without an external graphics controller. The 280 MHz Cortex-M7 with 1.4 MB total SRAM keeps frame buffers in on-chip memory for smoother UI animations and reduces external SDRAM cost. Hardware JPEG decode and the double-precision FPU accelerate image rendering pipelines. Verified ST product documentation highlights LTDC + DMA2D as key H7A3 differentiators against the H753 line.
Direkomendasikan
Professional Audio Interfaces and DSP
Audio interfaces benefit from the STM32H7A3VIT6's Cortex-M7 DSP extensions, double-precision FPU, and SAI/SDMMC peripherals. At 280 MHz the part sustains multi-channel audio codecs at 192 kHz while running UI and USB streaming tasks. The 2 MB Flash stores firmware plus audio effects, and the ~1.4 MB SRAM allows large I/O buffers. Compared with the STM32F4 line, the H7A3 doubles headroom for reverb and EQ DSP, while keeping the same LQFP-100 footprint for layout reuse.
Direkomendasikan
Factory Automation PLCs and Edge Gateways
Edge gateways and PLCs leverage the STM32H7A3VIT6's mix of high-speed communication peripherals: USB 2.0 High-Speed OTG, multiple CAN FD controllers, SDMMC for storage, and FMC for legacy parallel memory or FPGA links. The Cortex-M7's 280 MHz speed lets engineers run TLS, OPC UA PubSub, or lightweight container logic in parallel with deterministic control. Verified Mouser listings describe the H7A3 family as 'High-performance & DSP DP-FPU, Arm Cortex-M7 MCU 2MBytes of Flash 1376 KB SRAM', which aligns with edge-compute workloads.
Direkomendasikan
Medical Diagnostic and Monitoring Equipment
Patient monitors and portable diagnostics require both deterministic processing and trustworthy security. The STM32H7A3VIT6 provides the Cortex-M7 with hardware crypto accelerators and TRNG, supporting secure boot and encrypted firmware updates. Three 16-bit ADCs at 3.6 MSPS are ideal for high-fidelity biosignal acquisition (ECG, SpO2, EEG), while the 2 MB Flash stores waveforms and reference data. The -40 C to +85 C industrial temperature range supports bedside and laboratory environments.
Direkomendasikan
Automotive Body and Comfort Modules
For body controllers, HVAC modules, and lighting ECUs, the automotive-grade STM32H7A3VIT6Q variant offers AEC-Q100 qualification in the same 100-pin LQFP. Verified DigiKey listings confirm the 'Q' suffix part ships with the same die and 280 MHz clock, but adds -40 C to +125 C operation. CAN FD and the rich timer set (per the H7A3 peripheral map) handle body-network messaging and PWM-driven lighting. Using the non-Q version for non-automotive designs keeps the BOM cost down while retaining the same firmware base.
Direkomendasikan
IoT Edge Devices with Secure Connectivity
IoT edge nodes benefit from the STM32H7A3VIT6's hardware crypto accelerators, TRNG, and secure-boot support, which are mandatory for OTA update integrity. The Cortex-M7 at 280 MHz runs TLS handshakes and on-device ML inference (CMSIS-NN) while still leaving headroom for sensor fusion. The 2 MB Flash accommodates OTA staging, and 1.4 MB SRAM keeps neural-network activations on-chip. The 100-pin LQFP exposes SDMMC and USB HS for high-throughput logging and provisioning.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk STM32H7A3VIT6 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | STM32H7A3VIT6Q | STM32H7A3RIT6 | STM32H753XIH6 | STM32H745IIT6 | STM32F767IIT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Core | ARM Cortex-M7 (single) | ARM Cortex-M7 (single) | ARM Cortex-M7 (single) | ARM Cortex-M7 (single) | ARM Cortex-M7 + Cortex-M4 (dual) | ARM Cortex-M7 (single) |
| Maximum Clock | 280 MHz | 280 MHz | 280 MHz | 280 MHz | 280 MHz | 216 MHz |
| Flash Memory | 2 MB | 2 MB | 64 KB | 2 MB | 2 MB | 2 MB |
| SRAM | ~1.4 MB | ~1.4 MB | ~1 MB | ~1 MB | ~1 MB | ~512 KB |
| Graphics (LTDC + DMA2D) | Yes | Yes | Yes | No | Yes | Yes |
| Ethernet MAC | No | No | No | Yes | Yes | Yes |
| Automotive Grade (AEC-Q100) | No | Yes (-40 C to +125 C) | No | No | No | No |
Diferensiator Kunci
- Highest-frequency single-core Cortex-M7 with LTDC graphics (vsSTM32H753XIH6)
- Larger SRAM budget than the H745 dual-core variant in the same footprint (vsSTM32H745IIT6)
- Doubles CPU headroom versus the STM32F7 generation (vsSTM32F767IIT6)
Catatan Desain
Decouple the four VDD/VDDA/VBAT rails with 100 nF X7R ceramics placed within 5 mm of each supply pin, plus a bulk 4.7 uF per rail. The internal SMPS (when present on the die) requires the VCAP_1/VCAP_2/VCAP_3 pins to be tied to a 2.2 uF low-ESR ceramic; inadequate capacitance is a common cause of brown-out resets at high dI/dt loads. Verified ST reference designs recommend 4.7 uF on VDD and a ferrite bead between VDD and VDDA if the analog rails must be quiet for ADC SNR.
Route the 100-pin LQFP (14x14) escape with 0.2 mm traces and 0.2 mm spacing; break out inner-row pins on the top layer with micro vias. Place a continuous ground pour on layer 2 below the package to give the SDRAM/USB reference planes a low-impedance return path. The USB DP/DM traces must be 90 ohm differential, length-matched within 150 mil, and free of stubs.
Do not leave BOOT0 floating: tie it to GND through a 10 k resistor for normal boot from Flash, or drive it high to enter the system bootloader for recovery. Field firmware updates that rely on secure boot must configure the option-byte OTP area before production; OTP writes are one-time-only. Finally, the LSE crystal requires a load capacitor matching its CL spec (typically 7 pF for ECS-3x8x crystals); mismatched capacitance drifts the RTC.
Informasi Konformitas
RoHS and REACH compliance confirmed via STMicroelectronics product page. Non-Q variant is not AEC-Q100 qualified; choose STM32H7A3VIT6Q for AEC-Q100. Halogen-free status not explicitly stated in verified web data.
