Which of the following statements is correct about 2 to 4 decoder?

2022

Answer: B. When the decoder is enabled, one of its outputs will be active (i.e. 1) based on the values of its inputs.

1. A.

   It has 2 inputs, 2 enable lines, and 4 outputs.

2. B.

   When the decoder is enabled, one of its outputs will be active (i.e. 1) based on the values of its inputs.

3. C.

   When the decoder is disabled, its two outputs will be active (i.e. 1).

4. D.

   It can be implemented by using four AND gates having two inputs each and two inverters (NOT gates).

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