74157 is Quad 2-Line to 1-Line Data Selectors/Multiplexers manufactured by National Semiconductor.
| Part Number | Description |
|---|---|
| 74150 | Data Selectors/Multiplexers |
| 74151 | 1 of 8 Line Data Selector/Multiplexer |
| 74153 | Dual 4-Line to 1-Line Data Selectors/Multiplexers |
| 74154 | 4-Line to 16-Line Decoders/Demultiplexers |
| 74155 | Dual 2-Line to 4-Line Decoders/Demultiplexers |
These data selectors multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates A separate strobe input is provided A 4-bit word is selected from one of two sources and is routed to the four outputs.
