I forgot to mention:
While I believe that a "modern" inverter will work for these three projects
I do not claim that is always the case.
It would be great to have an online source for RTL specs, like most people I
have no RTL docs.
I based my opinion of using a TTL chip in place of RTL on the schematics and
timing diagrams. In this case I believe that TTL would work OK.
Randy
www.s100-manuals.com
----- Original Message -----
From: "Randy McLaughlin" <randy(a)s100-manuals.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Friday, January 07, 2005 11:17 AM
Subject: Re: RTL Logic
For the projects mentioned TTL will work. It
interfaces to other TTL
chips and darlinton switches. The timing is extremely liberal so
switching performance is not an issue. It uses a +5v power supply.
Randy
----- Original Message -----
From: "Al Kossow" <aek(a)spies.com>
To: <classiccmp(a)classiccmp.org>
Sent: Friday, January 07, 2005 11:07 AM
Subject: Re: RTL Logic
The MC789 is a hex inverter, a 7404 or 7406 could be used but the pin-out
is
different
--
The only thing it has in common with a TTL inverter is the function it
performs.
RTL logic, power supply, and switching performance are NOT the same as
TTL.
I have the RTL section of the 1969 Motorola microelectronics catalog
scanned
I'll see about getting it on line later today.