FST3253 Series 5.5 V Dual 4: 1 Multiplexer/Demultiplexer Bus Switch - SOIC-16
16-Pin Industrial Multiplexer and Demultiplexer, 4.5-5.5V, 0.25ns Propagation Delay
FST3257 Series 5.5 V Quad 2: 1 Multiplexer/Dumultiplexer Bus Switch - SOIC-16
FST3253 Series 1-Element Input Multiplexer/Demultiplexer Bus Switch - TSSOP-16