The STM32F411CEU6 is an ultra-compact ARM Cortex-M4 microcontroller from STMicroelectronics, running at up to 100 MHz with hardware FPU. Featuring 512KB Flash and 128KB SRAM in a tiny UFQFPN-48 package (7×7mm), it is the go-to choice for weight-sensitive mini and micro drone FC boards.
The F411 is popular in the Betaflight community as the "F4 mini" target — used extensively in 20×20mm stack FC boards, AIO boards, and whoop/toothpick freestyle rigs. It provides excellent performance-per-area with 5× SPI buses ideal for IMU, OSD chip, and flash logging simultaneously.
Основные характеристики
- Compact UFQFPN-48 package (7×7mm) — ideal for mini FC stacks
- 100MHz Cortex-M4 with FPU — sufficient for Betaflight 8kHz loops
- 5× SPI buses — drives IMU + OSD + Flash simultaneously
- USB OTG for firmware flashing and parameter configuration
- Low active power — suited for lightweight 1S/2S builds
