ARM Cortex-M7 480 MHz · 2MB Flash · 1MB SRAM · Double Precision FPU · LQFP-176 · Next-Gen AI Drone Autopilot MCU
| Part Number | STM32H743IIT6 |
|---|---|
| Manufacturer | STMicroelectronics |
| Core | ARM Cortex-M7 + DSP (Double Precision FPv5) |
| Max Frequency | 480 MHz (1027 DMIPS / 2.14 DMIPS/MHz) |
| Flash Memory | 2 MB dual-bank (2,097,152 bytes) |
| SRAM | 1 MB (includes 128KB DTCM, 64KB ITCM, 864KB AXISRAM) |
| Package | LQFP-176 (24×24mm, 0.5mm pitch) |
| Supply Voltage | 1.62 V – 3.6 V |
| Operating Temperature | −40°C to +85°C (Industrial) |
| GPIO Pins | 140 (5V tolerant I/O) |
| L1 Cache | 16KB I-cache + 16KB D-cache |
| RoHS Compliant | Yes |
| ART Accelerator | Yes — zero-wait Flash execution |
| Supply Voltage (VDD) | 1.62 V – 3.6 V |
|---|---|
| Supply Voltage (VBAT) | 1.55 V – 3.6 V |
| Core Voltage | SMPS or LDO regulator on-chip (Please confirm with manufacturer datasheet) |
| I/O Voltage | 3.3 V (5V tolerant on most pins) |
| Run Mode Current (480MHz) | ~280 mA typical (Please confirm with manufacturer datasheet) |
| Stop Mode Current | ~150 µA (Please confirm with manufacturer datasheet) |
| Standby Mode Current | ~2.5 µA (Please confirm with manufacturer datasheet) |
| ADC Resolution | 12-bit, 3× ADC, up to 5 MSPS, 20 channels |
| DAC | 12-bit, 2× DAC |
| Temperature Sensor | Internal, ±3°C accuracy (Please confirm with manufacturer datasheet) |
| UART / USART | 10× (up to 12.5 Mbit/s) |
|---|---|
| SPI | 6× SPI (up to 100 Mbit/s) |
| I²C | 4× I²C (Fast mode Plus, 1 MHz) |
| USB OTG | 1× USB 2.0 FS + 1× USB 2.0 HS with ULPI |
| CAN-FD | 2× CAN-FD (Flexible Data Rate, up to 8 Mbps) |
| SDIO | 2× SDMMC (embedded NAND Flash interface) |
| DMA | 2× MDMA + 2× DMA controllers, 8 streams each |
| Ethernet MAC | 10/100 Mbit/s with dedicated DMA and PTP |
| DCMI | 1× Digital Camera Interface |
| FMC | Flexible Memory Controller (SRAM/NOR/NAND/SDRAM) |
| Part Number | STM32H743IIT6 |
|---|---|
| Orderable Qty | 1 pcs – 10,000+ pcs |
| Price (1–9 pcs) | Contact for quote |
| Price (10–99 pcs) | Contact for quote |
| Price (100–499 pcs) | Contact for quote |
| Price (500+ pcs) | Best pricing available |
| Lead Time (stock) | 3–7 business days |
| Packaging | Tray (LQFP-176) |
| Export Control | EAR99 (No license required) |
The STM32H743IIT6 represents the pinnacle of STMicroelectronics microcontroller technology, featuring an ARM Cortex-M7 core running at an extraordinary 480 MHz with double-precision FPv5 floating-point unit. It delivers a staggering 1027 DMIPS of processing power, backed by 2MB of dual-bank Flash and a massive 1MB of SRAM (128KB DTCM, 64KB ITCM, 864KB AXISRAM plus 64KB backup). Packaged in LQFP-176, this is the premier choice for AI-capable drone autopilots and next-generation flight controllers that demand massive computational throughput.
The H7 series introduces several architectural innovations: a 32-bit AXI bus matrix running at 240 MHz with simultaneous multi-master access, independent MDMA controllers for memory-to-memory transfers, and an ART accelerator providing zero-wait-state execution from internal Flash at full 480 MHz. With 1MB of SRAM — more than four times the SRAM of an F765 — the H743 can run real-time neural network inference for object detection, obstacle avoidance, and vision-based navigation directly on the flight controller, eliminating the need for a separate companion computer in many applications.
In the drone ecosystem, the STM32H743IIT6 is gaining rapid adoption as the MCU of choice for Cube Orange+ and various next-gen Pixhawk variants. ArduPilot's H7 target fully leverages the 480 MHz core and 1MB SRAM for advanced features like EKF3 sensor fusion at multi-kHz rates, terrain following with high-resolution digital elevation models, precision landing with AprilTag detection, and concurrent multi-threaded mission execution. Betaflight H7 targets (STM32H743) enable 8 kHz gyro/PID with substantial CPU headroom remaining. The integrated CAN-FD bus (8 Mbps) provides future-proof connectivity for distributed drone control systems.
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