PCA9575 Datasheet (NXP Semiconductors)

PCA9575, low voltage GPIO

The PCA9575 is a CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion in low voltage processor and handheld battery powered mobile applications and was developed to enhance the NXP family of I2C-bus I/O expanders.

The improvements include lower supply current,

PCA9575 Features

* Separate supply rails for core logic and each of the two I/O banks provides voltage level shifting

* 1.1 V to 3.6 V operation with level shifting feature

* Very low standby current: < 2 μA

* 16 configurable I/O pins organized as 2 banks that default to inputs at pow