| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 74156 |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74156DC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74156FC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74156PC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
 National Semiconductor ... | 74150 |  182Kb/10P | Data Selectors/Multiplexers |
 National Semiconductor ... | 74151 |  182Kb/10P | Data Selectors/Multiplexers |
 National Semiconductor ... | 74153 |  120Kb/6P | Dual 4-Line to 1-Line Data Selectors/Multiplexers |
| 74154 |  116Kb/6P | 4-Line to 16-Line Decoders/Demultiplexers |
 National Semiconductor ... | 74156DC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74156FC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74156PC |  56Kb/2P | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| 74157 |  118Kb/6P | Quad 2-Line to 1-Line Data Selectors/Multiplexers |