"How does a flip flop work and why does it have setup & hold time?" https://www.youtube.com/watch?v=5PRuPVIjEcs https://www.youtube.com/watch?v=5PRuPVIjEcs Exc

"How does a flip flop work and why does it have setup & hold time?" https://www.youtube.com/watch?v=5PRuPVIjEcs https://www.youtube.com/watch?v=5PRuPVIjEcs Excellent video.