The recommended operating voltage range for the TCA6408AQPWRQ1 is 1.65V to 5.5V.
The TCA6408AQPWRQ1 can be configured for I2C or SMBus interface by connecting the SCL pin to a pull-up resistor and the SDA pin to a pull-up resistor or an open-drain output.
The maximum frequency of the clock signal that can be applied to the TCA6408AQPWRQ1 is 400 kHz for I2C mode and 100 kHz for SMBus mode.
The TCA6408AQPWRQ1 can be reset by applying a low signal to the RESET pin or by power-cycling the device.
The INT pin on the TCA6408AQPWRQ1 is an active-low interrupt output that indicates when an input pin has changed state.