The ATSAM4CMP8CA-AU is a microcontroller unit (MCU) produced by Microchip. It is based on the ARM Cortex-M4 32-bit processor core. The device is an industrial-grade MCU, primarily designed for controlling industrial automation systems and other embedded applications, such as home appliances and home automation. The device is also an excellent choice for audio, video, voice and data acquisition applications. It has a low-power, high-performance architecture, as well as integrated peripherals and a comprehensive set of safety and ease-of-use features. It has a total Flash memory of 16 kB, with 8 kB of Boot Flash and 8 kB of SRAM memory. The part also includes five I2C controllers, five USARTs, two SPI masters and two CAN controllers. Additional features include Open Drain/N-Open Drain Outputs, Real-Time Clock, Security Keys, and Temperature Sensor. The ATSAM4CMP8CA-AU is an excellent choice for industrial and embedded applications.