What this quad 2:1 mux does on your board
The Texas Instruments CY74FCT157CTSOCT is a 4 x 2:1 multiplexer from the 74FCT family. It operates from a single 4.75 V to 5.25 V supply and is rated from -40°C to 85°C.
Supply rail and output drive — what to budget
It sources 32 mA and sinks 64 mA.
The 16-SOIC package has a 7.50 mm body width (0.295").
