PROJECT 10 – DECODER

OVERVIEW

In digital design, a decoder is a circuit that has n inputs and 2ⁿ outputs. Based on the value of the inputs, one (and only one) output is set to one.

In this circuit, we will create a simple decoder.

CIRCUIT

Consider the circuit in the image below (source: Wikipedia). Also notice the truth table.

For each combination of inputs, a specific output will be ON.

PART 1

The image above is a 2-to-4 decoder. Draw the circuit for a 3-to-8 decoder. Therefore, your decoder will have 3 inputs and 8 outputs.

PART 2

Implement a 2-to-4 decoder. It will require six LEDs!