STM32F411CEU6

ARM Cortex-M4 MCU, 100MHz, 512KB Flash, FPU, UFQFPN-48

The STM32F411CEU6 is a high-performance ARM Cortex-M4 MCU with floating-point unit from STMicroelectronics. It runs at 100MHz with 512KB Flash and 128KB SRAM. Popular as the "Black Pill" development board.