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IS31SE5104 - 4-CH CAPACITIVE TOUCH SENSOR

General Description

The IS31SE5104 is an ultra low power, fully integrated 4-channel solution for capacitive touch-buttons applications.

The chip allows electrodes to project sense fields through any dielectric such as glass or plastic.

Key Features

  • Complete eight sensors capacitive touch controller for buttons.
  • Auto offset compensation.
  • Sensitivity adjustable by external capacitor or internal register.
  • Extremely low power optimized for portable.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IS31SE5104 4-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION December 2013 GENERAL DESCRIPTION The IS31SE5104 is an ultra low power, fully integrated 4-channel solution for capacitive touch-buttons applications. The chip allows electrodes to project sense fields through any dielectric such as glass or plastic. On-chip calibration logic continuously monitors the environment and automatically adjusts on-and-off threshold levels to prevent false sensor activation. The IS31SE5104 supports the 400kHz I²C serial bus data protocol and includes a field programmable slave address. An INTB is generated when a button event (touched or released) occurs, triggered and cleared condition could be configured by setting the interrupt register.