The BS801B Touch Screen Controller IC (SOT-23-6) is RoHS compliant and manufactured by the Taiwanese company Holtek. It is a signal-integrated single-chip microcontroller that can be used for the implementation of touch screen controller systems. The BS801B is an 8-bit MCU that provides an analog front end for touch screen signals, supports up to 8-point touch coordinates readings, and features a built-in ADC converter with 8-bit resolution for sampling measurements. It also has an integrated 200 ns interrupt function for strong noise immunity. The BS801B is suitable for use with a variety of touchscreen technologies, including capacitive, resistive, analog, and optical touchscreens. The BS801B offers high stability, accuracy, and low power consumption for touchscreen systems.