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BU21078FV Datasheet Capacitive Switch Controller

Manufacturer: ROHM

Overview: Capacitive Controller ICs Capacitive Switch Controller ICs BU21072MUV / BU21078MUV / BU21078FV.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

BU21072MUV/BU21078MUV/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.

Key Features

  • 10 capacitive sensor ports. (BU21072MUV) 12 capacitive sensor ports. (BU21078MUV / BU21078FV).
  • Supported Matrix switches. Maximum 16 switches. (BU21072MUV) Maximum 36 switches. (BU21078MUV / BU21078FV).
  • 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. Appli.

More Datasheets from ROHM

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BU21008MUV Capacitive Sensor Switch Controller
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BU21078FV Distributor