7 Jan
2005
7 Jan
'05
3:59 a.m.
I don't see how doing a wired-and is possible when RTL includes a pullup resistor on
each output. You would get to a point where an individual output transistor would not be
capable of sinking all the "low" current.
You can get a basic idea of the logic families here...
http://www.asic-world.com/digital/gates5.html
best regards, Steve Thatcher
-----Original Message-----
From: "Dwight K. Elvey" <dwight.elvey(a)amd.com>
Sent: Jan 7, 2005 12:22 PM
To: cctalk(a)classiccmp.org
Subject: RE: RTL Logic
Oops!
I forgot one thing. You can put several RTL outputs in
parallel as a wired AND. You can't do that with the
general CMOS or TTL. You'd need to look out for this.
Does anyone have a source for DTL parts. There are
a could I've been looking for.
Dwight