Brag: Scope probes

From: Eric Smith <eric_at_brouhaha.com>
Date: Sun Dec 22 11:26:00 2002

Tony wrote:
> As I keep on telling people, the most complex components in a (digital)
> circuit are the connecting wires....

Indeed. The hardest thing to convince some digital designers is that
digital circuits AREN'T.

Especially when they are trying to examine signals with fast edges on a
100 MHz scope, and think the edges look just fine. A 100 MHz scope is
*usually* adequate for working with 74LS and 74HC logic, but with modern
CMOS it usually isn't.

We *try* to make digital circuits behave digitally, but a whole host of
things conspire against us.
Received on Sun Dec 22 2002 - 11:26:00 GMT