Sequential Circuit

Abstract

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• Present output = Combination Circuit + Sequential Circuit State

• We need to store the past output, thus a Memory Element is needed. The diagram above has the memory element included inside

  
  

• 2 types

  • Synchronous Sequential Circuit (Flip-flops)
  • Asynchronous Sequential Circuit (Register)

Terminologies

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Sequential Circuit State

• Also known as feedback
• Past outputs

Multivibrator

• A class of Sequential Circuit
  1. Bistable (2 stable states)
  2. Monostable or one-shot (1 stable state)
  3. Astable (no stable state)