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BU21078FV - Capacitive Switch Controller

Download the BU21078FV datasheet PDF. This datasheet also covers the BU21078MUV variant, as both devices belong to the same capacitive switch controller family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 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

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Other Datasheets by ROHM

Part Number Description
BU21078MUV Capacitive Switch Controller
BU21072MUV Capacitive Switch Controller
BU21077MUV Capacitive Switch Controller
BU21079F Capacitive Switch Controller
BU21008MUV Capacitive Sensor Switch Controller

Full PDF Text Transcription

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Capacitive Controller ICs Capacitive Switch Controller ICs BU21072MUV / BU21078MUV / BU21078FV 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. Include LED controller with PWM function. 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.
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