NCA9555 Datasheet, NOVOSENSE

* Operating power supply voltage range of 2.3 V to 5.5 V
* 5 V tolerant I/Os
* I2C to Parallel Port Expander
* Polarity Inversion register
* Active LO.

It provides a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans,.

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