There was recently needed a realistic JK Simulation for which i had to set up one coz the Spice has no built in version . . . so i compared the equivalent circuits at d/s-s and made few additional 1-s.
It turned out that at high speed some perform more accurate than the others
From d/s - the only good one was 74LS73 , from custom 1-s - 2 became out credible : a mod of '7474 into JK --and-- a "self-confirming" JK -- that was made to have a least error JK to compare others against . . .
In the moderate/high speeds all perform correct
The variations occur near the speed limit
+ The last two compared ...
[Eop]
It turned out that at high speed some perform more accurate than the others
From d/s - the only good one was 74LS73 , from custom 1-s - 2 became out credible : a mod of '7474 into JK --and-- a "self-confirming" JK -- that was made to have a least error JK to compare others against . . .
In the moderate/high speeds all perform correct
The variations occur near the speed limit
+ The last two compared ...
[Eop]
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