.The STM32L451VCI6 with ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 80 MHz with 256 Kbytes Flash, DFSDM is an MCU from STMicroelectronics. This part is a high-performance and ultra-low power ARM Cortex-M4 processor with a maximum operating frequency of 80MHz. It also contains 256 Kbytes of on-board Flash memory and dedicated DFSDM (Digital Filter for Sigma-Delta Modulators) peripherals to support audio/voice applications. The device also provides up to 33 I/Os, several peripheral connections, and support for advanced functionalities such as Auto-Wakeup, Clock Switching and Low-Power modes. Other features include up to 13 timers, 3 x 12-bit ADCs, 2 x 16-bit DACs, USB OTG FS/HS, and I2S audio full-duplex, SPI, I2C, USART, and LIN interfaces. The STM32L451VCI6 is suitable for a wide range of embedded applications such as industrial automation, precision analogue applications, and consumer, medical, automotive, and Internet of Things (IoT) applications.