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Codiode/Problems/Combinational Logic

Build a 1:2 DEMUX from Gates

EasyLogic CircuitBuild

Data distribution networks and serial-to-parallel converters rely on routing a single data stream to multiple discrete destinations. The 1:2 demultiplexer directs a single data signal to one of two output paths based on a control signal, while forcing the unselected path to zero.

The circuit takes a data input D and a select input S. When S is 0, output Y0 follows D and Y1 is 0. When S is 1, output Y1 follows D and Y0 is 0.

| S | D | Y1 | Y0 | |-----|-----|------|------| | 0 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | | 1 | 0 | 0 | 0 | | 1 | 1 | 1 | 0 |

Constraints

  • Use only basic logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR).
  • Do not use high-level routing blocks like multiplexers or decoders.
  • Ensure the unselected output is strictly driven to 0.

Topics

MultiplexersRoutingBasic Gates

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Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.

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