The SB820 is a series of microcontrollers designed and manufactured by Diotec. It is a versatile 8-bit microcontroller device with a variety of on-chip peripherals, such as PWM outputs, UART, SPI, and ADC. The processor core is based on the Harvard architecture and contains up to 2KB of internal RAM. The device is commonly used for a variety of embedded applications, such as automotive, industrial, and medical. The SB820 also includes a Watchdog timer and a low power idle mode, making it ideal for battery-powered applications.