BU21079F Datasheet - ROHM

Capacitive Switch Controller

BU21079F Features

* 8 capacitive sensor ports

* Supports matrix switches. Maximum of 16 switches.

* Automatic self-calibration

* Continued touch detection

* Sends an interrupt when there is a detected result of switch operation

* 2-wire serial bus interface

* 3.3V or 5.0V single power supp

BU21079F General Description

BU21079F is a capacitive switch controller used for operating switches. Low power consumption is achieved using the intermittent operation mode. In addition to a regular simple switch, it supports matrix switches which are arranged in the matrix sensors. If external noise and temperature drift are d.

BU21079F Datasheet (953.13 KB)