CAT9534 Datasheet - ON Semiconductor

CAT9534 8-bit I2C and SMBus I/O Port

The CAT9534 is an 8-bit parallel input/output port expander for I²C and SMBus compatible applications. These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans. The CAT9534 consists of an input port register,.

CAT9534 Features

* 400kHz I²C bus compatible

* 2.3V to 5.5V operation

* Low stand-by current

* 5V tolerant I/Os

* 8 I/O pins that default to inputs at power-up

* High drive capability

* Individual I/O configuration

* Polarity inversion register

* Active low interrupt output

CAT9534_ONSemiconductor.pdf