This is not happening! Any flip-flop divide by 2 even in trench !
 you have more than 50MHz there ?
  Vasile

On Fri, 4 Aug 2000, Spehro Pefhany wrote:

> At 07:43 PM 8/3/00 -0400, you wrote:
>
> >I may try HC logic next, jsut to see if it is the LS family.
> >
> >Any grand ideas?
>
> For LS logic, the input transition should be faster than 15ns/volt
> over the range 0.4 to 2.4V. HC logic is much more tolerant,
> requiring only 110ns/volt. Note that on the '73, the rise time
> is not as important as the fall time.
>
> Could it be that you have some long (more than 6-12") wires
> in this system?
>
> Best regards,
>
>
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