8-bit I2C and SMBus I/O Port
CAT9554, CAT9554A 8-bit I2C and SMBus I/O Port with Interrupt 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 ...
ON Semiconductor