CAT9554A port equivalent, 8-bit i2c and smbus i/o port.
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.
These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches.
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, powe.
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