The 74CBTLV3257 provides a quad 1-of-2 high-speed multiplexer/demultiplexer with common select (S) and output enable (OE) inputs. The low ON resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. When pinOE= LOW, one of the two switches is selected (low-impedance ON-state) with pin S. When pinOE= HIGH, all switches are in the high-impedance OFF-state, independent of pin S.