Quad 2:1 Mux IC, 5V, SOIC-16, 4.3ns Prop Delay
CY74FCT257CTDR
74FCT 4-Bit Multiplexer, SOIC, 4.75-5.25V, -40-85°C
Single Multiplexer, 2-Input, 1-Output, 4.75-5.25V, SOIC, -40°C to 85°C
