The high integration level allows rich connectivity with many communication options such as Ethernet, USB full-speed, SD, and MMC host interfaces. In addition to two CAN channels, there are fourteen serial communication channels including I²C and SPI. The memory can easily be increased with external Flash and/or RAM through the Quad and Octa SPI interfaces. A wide choice of communication options makes the RA6M4 a best fit device for multiple applications in the industry.