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BU21078FV Datasheet Capacitive Switch Controller

Manufacturer: ROHM

Download the BU21078FV datasheet PDF. This datasheet also includes the BU21078MUV variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BU21078MUV_ROHM.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BU21078FV
Manufacturer ROHM
File Size 1.49 MB
Description Capacitive Switch Controller
Datasheet download datasheet BU21078FV Datasheet

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.

Overview

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

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.

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