-----Original Message-----
Date: Thursday, October 21, 2010 1:13:29 pm
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
From: "William Donzelli" <wdonzelli at gmail.com>
Subject: Re: HTL
You'd use the same precautions, in-circuit or out,
that you'd use
with any bipolar logic chip, be it HTL, DTL, RTL or TTL. ?No special
precautions or lack thereof because it's HTL.
Being bipolar does not mean ESD safe. ECL is somewhat static
sensitive. Also, with HTL being such an old family, I am unsure as to
its sensitivity. DTL and TTL have become more static insensitive over
time with die revisions and better processes. Did HTL, always a
low-runner, go through this process?
There's different levels of ESD protection for handling components. Whether your just
storing parts for a hobby, development lab or a full production facility.
A simple static wrist strap can avoid any confusion in many situations and should be in
your pocket whenever handling components, boards, etc. And if your in the sticks
somewhere, without a proper grounding station, you should at least be prepared with a
static bag stuffed in your toolbox to cover the cards when handling a rack full of cards.
Never touch with bare hands as taught in ESD class.
You know the old adage being, don't leave home without it :)