Description
Pericom  Semiconductor’s  PI3B3257A  is  a  3.3  Volt,  Quad  2:1 multiplexer/demultiplexer with three-state outputs that is pinout and  function  compatible  with  the  PI74FCT257T,  74F257,  and 74ALS/AS/LS257. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay.

FEATUREs
•  Near-Zero propagation delay
•  5Ω switches connect inputs to outputs
•  Fast Switching Speed: 4.8ns max.
•  Ultra-Low Quiescent Power: 0.1µA typical
– Ideally suited for notebook applications
•  Pin compatible with 74 series 257 logic devices
•  Packaging (Pb-free & Green avaliable):
– 16-pin 150 mil wide plastic QSOP (Q)