4000 Series Encoders/Decoders, Multiplexers/Demultiplexers, Texas InstrumentsTexas Instruments range of Encoders, Decoders, Multiplexers, Demultiplexers and Analogue Switches from the 4000 Series CMOS Logic Family.4000 CMOS Logic Family, Texas InstrumentsCMOS Family devicesWide operating voltage range: 3 to 18V