Flip-Flops - Latches
  • is a circuit that has two stable states and can be used to store state information
  • is the basic storage element in sequential logic

Types

S-R Latch)

  • is an asynchronous Latch
  • can be created with two NOR gates that have a cross-feedback loop
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Gated SR Latch

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D Latch
Transparent Latch

  • is a simple extension of the gated SR latch that removes the possibility of invalid input states
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D-Type Flip-Flop (DFF)

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T-Type Flip-Flop (TFF)

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JK-Type Flip-Flop (JK-FF)

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Resources