[SI-LIST] Re: measuring switching thersholds

  • From: "Andrew Ingraham" <a.ingraham@xxxxxxxx>
  • To: <si-list@xxxxxxxxxxxxx>
  • Date: Fri, 18 Aug 2006 07:39:39 -0400

FYI, I forgot to mention that I have seen actual parts where the Clock
inputs had totally different switching thresholds (and required different
input levels) than most of the other input pins.

One in particular had TTL-compatible input levels on most pins, but required
full 5V rail-to-rail levels on the CLK input pins.  Very different input
thresholds.

Regards,
Andy

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