CAT9555 port equivalent, 16-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 three address input pins provide the device’s extended addressing.
These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches.
The CAT9555 is a CMOS device that provides 16−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,.
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