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Hi, sorry if this is not the right place to put this, but after around 4 hours of searching, I am out of ideas

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Is there anywhere I could find a 74AC821, or any 10 bit d flip flop spice model, I have been unable to find one

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Thanks in advance

jessemccree1701 wrote, "Is there anywhere I could find a 74AC821, or any 10 bit d flip flop spice model ..."

Please note, what you are looking for is the SPICE model for a D flip-flop.? People don't make (or rarely ever make) SPICE models of something that is repeated 10 times; they make SPICE models for one of them.? Then you just add 10 of them to your schematic.? SPICE models don't care about pin numbers or how many are on the same die.

So what exactly are you looking for?? ANY D-flop?? Or only one from the 74AC family?? Are other families (such as 74ACT, 74HC, etc.) close enough?? I don't want to suggest that any of these are easy to find -- I just want to narrow down what you need.

If all you want is "any" D-flop, there is the basic "dflop" that comes with LTspice.? It's in the [Digital] folder.? If that one meets your needs, being a generic D-flop that you can replicate 10 times, read the Help page for A-devices (LTspice > Circuit Elements > A. Special Functions).? You should add at least the parameters Vhigh and Td.? Ask if you need help with that.

Andy

you can use bunch of B sources with or without the combination of the E and S for I and/or O
about :



also :

(sorry , you need to dig the details yourself ... it would get lengthy to include the help/usage/specifics in this post)

+ (maybe) /g/LTspice/search?q=state+machine