flip-flop
  • noun an electronic circuit or mechanical device that can be switched between two stable states
  • A two-stage multivibrator circuit with two stable states. In one of the stable states, the first stage conducts while the other is cut off, while in the other state the reverse is true. When the appropriate input signal is applied, the circuit flips from one state to the other. It remains in this state until the next appropriate signal arrives, at which time it flops back. Used extensively in computers and counting devices. Its abbreviation is FF. Also known as flip-flop circuit, bistable multivibrator, Eccles-Jordan circuit, bistable flip-flop, or trigger circuit (2).

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