Capacitive Switch Controller IC - BU21078FV
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.
Sensor input channels
LED control channels
6 x 6
Operating Temperature (Min.)[°C]
Operating Temperature (Max.)[°C]
- 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.