The TMUX7236 supports Fail-Safe Logic on the control input pins (EN and SEL) allowing the device to operate up to 44 V above V_SS, regardless of the state of the supply pins. This feature allows voltages on the control pins to be applied before the supply pin, protecting the device from potential damage. Fail-Safe Logic minimizes system complexity by removing the need for power supply sequencing on the logic control pins. For example, the Fail-Safe Logic feature allows the logic input pins of the TMUX7236 to be ramped to +44 V while V_DD and V_SS = 0 V. The logic control inputs are protected against positive faults of up to +44 V in the powered-off condition, but does not offer protection against negative overvoltage conditions.