BU21078FV is a capacitive sensor controller for switch operation. In addition to a regular simple switch, support matrix switches which are arranged in the matrix sensors. If external noise and temperature drift are detected, the automatic self-calibration is operated. Include LED controller with PWM function.
12 capacitive sensor ports Supported Matrix switches. Maximum 36 switches Automatic self-calibration Continued touch detection LED controller with PWM function Inform the detected result of switch operation by interrupt 2-wire serial bus interface Single power supply Built-in Power-On-Reset and Oscillator