The 54155 by National Semiconductor is a Dual 2-Line to 4-Line Decoders/Demultiplexers. Below is the official datasheet preview.
| Part number | 54155 |
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| Manufacturer | National Semiconductor |
| File Size | 120.34 KB |
| Description | Dual 2-Line to 4-Line Decoders/Demultiplexers |
| Datasheet |
 54155-NationalSemiconductor.pdf
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These TTL circuits feature dual 1-line-to-4-line demultiplexers with individual strobes and common binary-address inputs in a single 16-pin package When both sections are enabled by the strobes the common address inputs sequentially select and route associated input data to the appropriate output of each section The individual strobes permit activating or inhibiting each of the 4-bit sections as desired Data applied to input C1 is inverted at its outputs and data applied at C2 is true through it
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