Part Number	QS3257
Manufacturer	IDT
Overview	The QS3257 is a high-speed CMOS LVTTL-compatible Quad 2:1 multiplexer/demultiplexer.TheQS3257isafunctionandpinoutcompatibleQuickSwitch version of the 74F257, 74FCT257, and the 74ALS/AS/LS257 Quad 2:1 . BENEFITS * Enhanced N channel FET with no inherent diode to VCC * 5Ω bidirectional switches connect inputs to outputs * Pin compatible with the 74F257, 74FCT257, and 74FCT257T * Zero propagation delay, zero ground bounce * TTL-compatible control inputs * Undershoot clamp diodes on all switch and con.