Encoders, Decoders, Multiplexers & Demultiplexers Encoders, Decoders, Multiplexers & Demultiplexers Data Selectors/Multiplexers With 3-State Outputs 16-CDIP -55 to 125 JM38510/30905BEA - Texas Instrument - Military High-Reliability Integrated Circuit, Commercial Number 54LS251 MFG. Texas Instrument Date Code 1985