The TS5A63157 is a single-pole, double-throw (SPDT) analog switch designed to operate from 1.65 V to 5.5 V. This device can handle both digital and analog signals. Signals up to V+ (peak) can be transmitted in either direction. TI has integrated overshoot and undershoot protection circuitry. The TS5A63157 senses overshoot and undershoot events at the I/Os and responds by preventing voltage differentials from developing and turning the switch on.