3 Configuration

The MTCH9010 liquid detection sensor features several configuration input pins, and each pin controls one of the following configuration parameters:
  • Operation Mode Selection (Capacitive or Conductive)
  • Sleep Period Selection
  • Liquid Detection Threshold
  • Extended Output Enable
  • Enhanced Configuration Mode Enable
  • System Lock Enable
The Sleep Period and Liquid Detection Threshold inputs are set by applying a voltage level to the respective configuration pin. The Appendix provides information on how to generate these input voltages.

The Operation Mode, Extended Output, Enhanced Configuration Mode, and System Lock inputs are set by connecting the pin to VDD or GND.

If the System Lock is not enabled, MTCH9010 reads the I/O configuration input pins at power-up. Otherwise, the saved parameters will be used instead.