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Latch Based Design Robustness

May 19, 2008

Latch based design is usually not given enough attention by digital designers. There are many reasons for that, some are very well based, other reasons are just because latch based design is just unknown and looked at as a strange beast.

I intend to have a serious of posts concerning latch based design issues. I have to admit that most of my design experience was gained doing flip flop based designs, but the latch based designs I did were always interesting and challenging. If any of you readers have some interesting latch based design examples please send them over to my email and I will include them in later posts.

Just to start the ball rolling, here is a very interesting paper on the robustness of latch based design with comparison to flip flop based design. If you don’t have the time to go through the entire paper just look at figure 1 and its description.

I also added this paper to the list of recommended reading list.

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3 comments

  1. Hi ,

    what makes the latch based design not a preferable and practical alternative to FF in digital design?

    karthik


  2. Hi,

    How good/bad can Static Timing Analysis (STA) tools deal with latch-based designs?

    José


  3. Do you have some examples of the latch-based design?

    I don’t know how to easily transform a FF-based design to a latch-based design style?



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