The TTL/MSI SN74LS251 is a high speed 8-Input Digital Multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. The LS251 can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided.
   
• Schottky Process for High Speed
• Multifunction Capability
• On-Chip Select Logic Decoding
• Inverting and Non-Inverting 3-State Outputs
• Input Clamp Diodes Limit High Speed Termination Effects