The SY100S363 is a dual 8-input multiplexer designed for use in new, high-performance ECL systems. The three Data Select inputs (S 0 , S 1 , S 2 ) determine the bits from each of the inputs (A n , B n ) that will be passed on through the two outputs. The same bit will be selected from the two groups of 8 inputs. The inputs on this device have 75K p ull-down resistors.