STM32F405VGT6

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FAQ

Q: What Pixhawk variants use STM32F405VGT6?
A: The VGT6 in LQFP-100 is used on full-featured Pixhawk 2.4.6 and 2.4.8 boards from Holybro, Radiolink, CUAV, and other manufacturers. It provides the 82 GPIO needed for dual IMU, dual CAN, multiple UARTs, and full PWM output — the practical maximum for a hand-solderable LQFP package in a drone autopi

Q: Does STM32F405VGT6 support redundant IMUs?
A: Yes. Two independent SPI buses connect to dual IMU sensors (e.g., ICM-20689 + ICM-20602 or ICM-20689 + BMI055) for hardware-level redundancy. ArduPilot and PX4 compare IMU data streams in real time, detecting and isolating a failed sensor without interrupting flight control.

Q: Can this chip run PX4 with full MAVLink routing?
A: Yes. The VGT6 has sufficient UARTs (4× USART + 2× UART) to support simultaneous connections for GPS (UART1), telemetry radio (UART2), companion computer MAVLink routing (UART3), and serial ESC telemetry (UART4) — all with DMA-backed transfers to minimize CPU overhead.

1. Product Overview

The STM32F405VGT6 (100-pin LQFP) delivers the full F405 feature set with 82 GPIO — the sweet spot for full-featured Pixhawk 2.4.x designs requiring dual IMU SPI buses, external SPI Flash for parameter storage, UARTs for GPS + telemetry radios + companion computer, and PWM outputs for 8-motor configurations. The LQFP-100 package provides enough I/O for a complete drone autopilot without the BGA assembly complexity of higher-pin-count packages. STM32F405 — the chip powering Pixhawk 1 and Pixhawk 2.4.x , the most widely deployed open-source drone autopilot hardware in the world.

2. Key Features

• 168 MHz Cortex-M4F + Hardware FPU — PX4 & ArduPilot Native
• 1 MB Flash + 192 KB SRAM — Full Stack Headroom
• 82 GPIO — Full-Spectrum Autopilot I/O
• Dual CAN 2.0B — UAVCAN/DroneCAN Bus
• SDIO + USB OTG — High-Bandwidth Logging & Configuration
• 3× 12-bit ADC + 2× DAC — Analog Sensor Pipeline

3. Technical Specifications

4. Applications

• Pixhawk 2.4.x Full-Feature Autopilots
• PX4 FMUv3 Reference Designs
• Professional Fixed-Wing Autopilots
• Hybrid VTOL Transition Controllers
• CAN-Connected Multi-Node UAV Systems

5. Supply Solutions

Aurora supports customers with STM32F405VGT6 sourcing through verified global supply channels. We help OEMs and manufacturers manage availability challenges, production requirements, and lifecycle risks with flexible procurement solutions.

6. Quality Assurance

All components supplied by Aurora follow strict quality control procedures, including supplier verification, documentation review, inspection, and traceability management to ensure product authenticity and reliability.

7. Alternative & Replacement Solutions

When original STM32F405VGT6 components face shortages, lifecycle changes, or long lead times, Aurora helps customers identify suitable alternative components based on technical requirements, application needs, and supply conditions.

8. Request Quote / Contact

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