CAT9554 Datasheet - ON Semiconductor

CAT9554 8-bit I2C and SMBus I/O Port

The CAT9554 and CAT9554A are CMOS devices that provide 8 *bit parallel input/output port expansion 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. T.

CAT9554 Features

* an active low interrupt output which indicates to the system master that an input state has changed. The device’s extended addressing capability allows up to 8 devices to share the same bus. The CAT9554A is identical to the CAT9554 except the fixed part of the I2C slave address is different. This al

CAT9554-ONSemiconductor.pdf