IOFF Protection: When no power is provided to the device (VCC = 0 V), the TS3DDR4000 prevents any I/O signals from back-powering the device. The leakage current is tightly controlled under such condition (refer to the IOFF in the Specifications section) so it does not cause any system issues.
Low-power mode: The EN pin can be driven high to make the TS3DDR4000 enter the low-power mode. When in low power mode, all channels are isolated and the device consumes less than 5 µA of current.