So I am designing a 3-bit asynchronous binary counter which counts up to 11 then repeats using D flip-flops. That much I have done, however I am stuck when it comes to decoding the outputs to stop the counting sequence. I am only supposed to use one logic gate, though. I was thinking of how I could do this using an actual decoder, but I am completely lost when it comes to using just one gate. Any tips to get going? I want to actually figure this out.
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\$\begingroup\$ How does an asynchronous counter work? It just counts as fast as it can, with no clock input? \$\endgroup\$user57037– user570372015-11-18 04:25:59 +00:00Commented Nov 18, 2015 at 4:25
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\$\begingroup\$ That's right, there is no clock. \$\endgroup\$kgEE19– kgEE192015-11-18 04:27:43 +00:00Commented Nov 18, 2015 at 4:27
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\$\begingroup\$ So the D flip flops have no clock input? \$\endgroup\$user57037– user570372015-11-18 04:30:54 +00:00Commented Nov 18, 2015 at 4:30
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\$\begingroup\$ They do, but they are connected to the output of the previous flip flop. \$\endgroup\$kgEE19– kgEE192015-11-18 04:37:23 +00:00Commented Nov 18, 2015 at 4:37
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2\$\begingroup\$ Use the built in schematic editor on this website. \$\endgroup\$Asmyldof– Asmyldof2015-11-18 07:36:57 +00:00Commented Nov 18, 2015 at 7:36
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