What are advantages and drawbacks of latches, Computer Engineering

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What are advantages and drawbacks of latches?

Advantages and drawbacks of latches:

  • Area of a latch is classically less than a Flip Flop.
  • It consumes less power, because of lesser switching activity and lesser area.
  • It facilitates the cycle stealing or time borrowing.
  • It helps increase pipeline depth along with lesser area.
  • Even though the path is longer than a clock cycle for a latch based pipeline, this is okay as long as this meets the next latch setup margin.
  • Into multiple clock schemes, the clock edges should not be overlapping. This makes the logic design, vector generation for verification and clock tree synthesis complicated.
  • Along with barrowing and cycle stealing, there operating frequency is higher than the slower logic path.
  • It forms time budgeting and characterizing the interfaces tedious.

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