CAT9554

8-bit I2C and SMBus I/O Port

ON Semiconductor

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 General Description

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 Datasheet (151.87 KB)