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| Thread ID: 54592 | 2005-02-16 20:49:00 | What is the difference between flip-flops? | MoChebs (7343) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 325714 | 2005-02-16 20:49:00 | Hi, I would like to know what the major difference between the RS, D, and JK flip-flops are. I've looked for major differences but can't seem to find anything significant. Thanks for the help! |
MoChebs (7343) | ||
| 325715 | 2005-02-16 23:28:00 | Fairly good explaination on these links Been ages since I even thought about a flip flop so the revision was good for me as well computer.howstuffworks.com www.cs.umd.edu hyperphysics.phy-astr.gsu.edu www.nottingham.ac.uk |
bartsdadhomer (80) | ||
| 325716 | 2005-02-17 00:22:00 | D is my favourite . It's edge triggered . Whatever is on the data input when the clock goes high is latched . D logic is what makes a traditional mouse (with the little opto-interruptors) work . There were a huge number of them in the CPU of a PDP8 . RS is set/reset : set input gives "set" output; reset input gives "reset" . (most D-type have set and reset inputs) . Useful for pushbuttons . J-K is complicated . You need to study the truth table . It's level, not edge, clocked, so is sometimes less susceptible to noise than a D . People who like complicated circuits love J-K . I was once supposed to follow a design by a comedian who had made a dual latch out of AND-OR-INVERT gates . One latch gave a high, the other a low output from high inputs . I put in a 7474, and got a choice of either (or both) . |
Graham L (2) | ||
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