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BU21079F - Capacitive Switch Controller

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.

Key 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 supply.
  • Built-in Power-On-Reset and Oscillator.

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Datasheet Details

Part number BU21079F
Manufacturer ROHM
File Size 953.13 KB
Description Capacitive Switch Controller
Datasheet download datasheet BU21079F Datasheet

Full PDF Text Transcription for BU21079F (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for BU21079F. For precise diagrams, and layout, please refer to the original PDF.

Capacitive Controller ICs Capacitive Switch Controller ICs BU21079F General Description BU21079F is a capacitive switch controller used for operating switches. Low power ...

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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 detected, the automatic self-calibration is activated. 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.

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