Can you please post a picture of the implementation of such flip-flop at logic gate level? How can I easily change a positive edge triggered D Flip Flop to a negative edge? Also, how will the truth table differ from the positive edge?


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    \$\begingroup\$ I'm almost inclined to answer, but please do look at it again and give it a second's thought. You may have (should have) heard of a thing called an invertor. :) Also, this sounds a little too homeworky IMO for the liking of the peoples that tend to stick around here. \$\endgroup\$ – Richard the Spacecat Mar 8 '18 at 22:40
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    \$\begingroup\$ en.wikipedia.org/wiki/… \$\endgroup\$ – Bruce Abbott Mar 8 '18 at 23:03

here is link to datasheet for 74LS112 http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwj-wJ3vpt7ZAhVW9mMKHQDuCbwQFggpMAA&url=http%3A%2F%2Fwww.ti.com%2Flit%2Fpdf%2Fsdas199&usg=AOvVaw1bLUvWMKMq_A9rtgMzL0Bf

and here is logic-diagram

enter image description here

You should download a PDF of the TTL databook, and read it. Or buy a used copy, and flip through it.

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