CD54/74HC157, CD54/74HCT157, CD54/74HC158, CD54/74HCT158
Data sheet acquired from Harris Semiconductor SCHS153A
September 1997 - Revised May 2000
High Speed CMOS Logic Quad 2-Input Multiplexers
Original
Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.