The STMicroelectronics STM32F051C4U6 is a 32-bit ARM Cortex-M0 microcontroller from the STM32F0 value-line family, clocked at 48 MHz with 16 KB of Flash and 8 KB of RAM. It packs a 12-bit ADC (13 channels), a single 12-bit DAC, and peripherals including SPI, I²C, USART, I²S, and HDMI-CEC — enough for sensor fusion, motor control feedback, or IoT node processing in a 7x7 mm UFQFPN package.
The STM32F051C4U6 is marked end-of-life (EOL). The base product number STM32F051 has a range of density options that share the same pinout and peripheral set.