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Pregunta 288

Which of the following describes the function of a two-input AND gate?

  1. Output is high when either or both inputs are low
  2. Output is high only when both inputs are highRespuesta correcta
  3. Output is low when either or both inputs are high
  4. Output is low only when both inputs are high

Explicación

An AND gate outputs a high only when every input is high, so with two inputs both must be high. A gate whose output becomes low only when both inputs are high performs the inverted NAND function instead.

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Pregunta 288: Which of the following describes the function of a… · FCC General Class (Element 3) · Questena