 Working voltage: 2.4V~5.5V

 Working current: typical value is only 3uA in low power mode, 6uA in fast mode (@VDD=3.0V and no load)

 The power-on initialization is completed within 0.5s after the power supply is stable, and all functions are disabled during this period

 The response time in fast mode is about 45ms, and the maximum response time in low power mode is about 160ms (@VDD=3.0V)

 Automatic calibration function: refresh the reference value about every 1s within 8s just after power-on, if there is a touch button within 8s or there is no touch button after 8s, then

The recalibration cycle is switched to 4s

 Provide the longest touch button output time of about 16s (±25% @VDD=3.0V)

 Dual channel detection input (touch detection input and ear detection input), sharing one output

 Fixed as an open-drain low-level output (a pull-up circuit must be added), and the output terminal needs to be connected with a pull-up resistor during application

 The chip has a voltage detection reset pin, the chip resets when a high level is detected

 Built-in voltage stabilizing circuit provides stable voltage for touch detection circuit

 Built-in debounce circuit can effectively prevent malfunction caused by external noise interference

 Sensitivity can be adjusted by external capacitor

 Can be used on the surface of glass, ceramics, plastics, acrylic and other media