Question at position 1 It is possible for a 3:8 decoder to have 3 out of the eight outputs assertedTrueFalse

Question

Question at position 1 It is possible for a 3:8 decoder to have 3 out of the eight outputs assertedTrueFalse

BlackTom AI · Accepted Answer

Question: It is possible for a 3:8 decoder to have 3 out of the eight outputs asserted.

Option 1: True
- In a standard 3-to-8 decoder, the purpose is to take 3 input bits and activate exactly one of the 8 outputs corresponding to the input combination. Therefore, having three outputs asserted simultaneously would violate the basic decoder property of a 1-of-8 activation for each input code. This makes the statement inaccurate under the conventional design, where only a single output should be active at any time. 
- The only way three outputs could appear active is if the device were not a proper decoder (e.g., if additional gating or wiring errors caused multiple lines to be driven high), but that would no longer be the defined behavior of a 3:8 decoder itself. Hence, this option mischaracterizes the standard operation.

Option 2: False
- The standard 3-to-8 decoder provides a unique active output for each of the 8 possible input combinations, i.e., exactly one output line is asserted for any valid input vector. This one-hot behavior is a fundamental property of a straightforward decoder and is what enables decoding of the 3-bit address space without ambiguity. 
- Because the assertion of exactly one output is the intended behavior, the claim that it is possible to have three outputs asserted is not consistent with the canonical operation of a 3:8 decoder. The statement under evaluation is therefore not correct when describing a proper decoder’s function.

Summary perspective: The decoder’s design enforces a single active output per input pattern, so the scenario of three outputs being asserted does not align with standard 3:8 decoder behavior. The alternative framing that corresponds to this understanding is consistent with the one-hot activation pattern, which is why the notion described in the False option aligns with correct decoder behavior.

Question at position 1 It is possible for a 3:8 decoder to have 3 out of the eight outputs assertedTrueFalse

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