AND GATE

An AND gate is a fundamental logic gate in digital electronics that outputs a high signal (1) only when all of its inputs are high (1). If any input is low (0), the output will be low (0).

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Key Features of an AND Gate:

  1. Symbol: Represented by a D-shaped symbol in circuit diagrams.
  2. Inputs: Can have two or more inputs.
  3. Output: High (1) only if all inputs are high (1).
  4. Truth Table: Describes the behavior of the AND gate:
Input AInput BOutput (A AND B)
000
010
100
111
  1. Boolean Expression: The output YYY is represented as: Y=A⋅BY = A \cdot BY=A⋅B Where ⋅\cdot⋅ denotes the logical AND operation.

Applications:

  • Used in digital circuits to perform logical conjunction.
  • Found in microprocessors, computer systems, and control systems.
  • Used in decision-making circuits and alarm systems.

The AND gate is a basic building block of digital logic, often combined with other gates like OR and NOT to create complex logic circuits.

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