The recommended operating voltage range for the TCA6424ARGJR is 1.65V to 5.5V.
The TCA6424ARGJR can be configured for I2C or SMBus interface by setting the SEL pin high or low, respectively. The SEL pin is internally pulled up to VCC, so if left unconnected, it defaults to I2C mode.
The maximum frequency of the clock signal that can be used with the TCA6424ARGJR is 400 kHz for I2C mode and 100 kHz for SMBus mode.
The TCA6424ARGJR can be reset by pulling the RESET pin low for at least 1.5 ms. The device will return to its default state after reset.
The maximum current that can be sourced or sunk by the TCA6424ARGJR is 25 mA per output pin.