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PostPosted: Mon Feb 29, 2016 1:49 am 
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Location: Seattle
Well .... you could add another 74'74 and just keep on daisy-chaining things, but using a 74'160/161/162/163 would be cheaper.


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PostPosted: Mon Feb 29, 2016 1:54 am 
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Joined: Sat May 03, 2014 11:32 pm
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Location: Königsberg
Heh, I have a bunch of 74LS74. What is scheme of wiring two 74LS74 for keep "daisy-chaining"?


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PostPosted: Mon Feb 29, 2016 1:32 pm 
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Notice how all the instructions (save one) were among pins named 2something?

Same thing. On one side of any 74'74, connect -nQ to +nD; -nRD and -nSD to +5V; +nQ to the address lines.

To daisy-chain them together, connect -xQ of any one side to ↑nCK of any other side. (Connect only one ↑CK to the same -Q input, otherwise they'll count the same number). Repeat as necessary.


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PostPosted: Tue Mar 01, 2016 3:07 am 
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Thanks! I'll try this.


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