STM32F427ZGT6

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FAQ

Q: What Pixhawk hardware uses the STM32F427?
A: The F427 powers the Pixhawk 2.1 (Cube) (PX4FMUv3), CUAV Pixhack V3/V5, Holybro Pixhawk 4, and mRo Pixhawk. It is the baseline MCU for all commercial-grade Pixhawk autopilots beyond the entry-level 2.4.x series. The 180 MHz clock and up to 2 MB Flash support the full PX4 v1.12+ modular driver archite

Q: How much faster is the F427 compared to the F405?
A: The F427 runs at 180 MHz vs 168 MHz on the F405 — a ~7% clock increase. More importantly, the F427 offers 256 KB SRAM vs 192 KB (+33%) and 2 MB Flash options vs 1 MB max (+100%). These memory increases are the real differentiator for professional autopilots running dual-redundant EKF instances, comp

Q: What is the STM32F427IIT6 used for?
A: The IIT6 variant is the top-of-line F427 with 2 MB Flash and 140 GPIO in an LQFP-176 package. It is used on premium autopilots requiring maximum I/O: triple-redundant IMU buses, dual GPS, dual CAN, Ethernet, DCMI camera, and 14+ PWM outputs — all on a single chip. Ideal for the Cube Orange+ and simi

1. Product Overview

The STM32F427ZGT6 belongs to ST's STM32F427 series — the premium Cortex-M4F MCU that powers the iconic Pixhawk 2.1 (Cube) and professional-grade drone autopilots. Running at 180 MHz with up to 2 MB Flash and 256 KB SRAM , the F427 provides the additional performance headroom needed for PX4's modular driver architecture, ArduPilot's full feature set with Lua scripting, and dual-redundant EKF3 instances for safety-critical commercial UAV operations. The 144-pin package delivers 114 GPIO for complete autopilot I/O with triple-redundant IMU buses, multiple CAN interfaces, and high-speed SDIO logging. STM32F427 — the premium mid-range Cortex-M4F MCU running at 180 MHz with up to 2 MB Flash and 256 KB SRAM . Powers the iconic Pixhawk 2.1 (Cube) and professional-grade drone autopilots worldwide.

2. Key Features

• 180 MHz Cortex-M4F + Hardware FPU — ArduPilot EKF & PX4 Native
• 1 MB Flash + 256 KB (192 KB + 64 KB CCM) SRAM — Full ArduPilot/PX4 Stack
• Ethernet 10/100 MAC + DMA — IP-Connected Ground Control
• DCMI Camera Interface — Onboard Optical Flow & Visual Odometry
• Dual CAN 2.0B — UAVCAN/DroneCAN Peripheral Ecosystem
• SDIO Interface — High-Speed Blackbox Logging
• 3× 12-bit ADC + 2× DAC — Analog Sensor & Actuator Pipeline
• Advanced Timers — Multi-Rotor to Fixed-Wing PWM

3. Technical Specifications

4. Applications

• Pixhawk 2.1 (Cube) & Professional Autopilots
• Safety-Critical Commercial UAVs
• PX4 FMUv4 / FMUv5 Hardware Reference
• Heavy-Lift Industrial Drones
• Open-Source Autopilot R&D & Custom Payloads

5. Supply Solutions

Aurora supports customers with STM32F427ZGT6 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 STM32F427ZGT6 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.

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