Thank you very much for putting up the manual.
As I said My memory of light use more than 30 years ago was wrong.
In general the Vcc voltage specs alone should eliminate swapping TTL & RTL,
in this specific case the RTL device (MC789) is driven with a +5v
power-supply which going by the manual is too high.
I stand by my statement that for the three projects mentioned TTL should
work. After checking the specs of the original parts (MC789) I would
recomend using TTL since Vcc is driven with +5v and I didn't see anything
else in the project plans that would eliminate TTL for the inverters.
Randy
----- Original Message -----
From: "Al Kossow" <aek_at_spies.com>
To: <classiccmp_at_classiccmp.org>
Sent: Friday, January 07, 2005 12:01 PM
Subject: Re: RTL Logic
>
>
>
>> 3.6v? Are you joking or do you believe that?
>
> The MC7xx series specs are now up at
> http://www.bitsavers.org/pdf/motorola/_dataBooks/1969_microElectronics/17_MRTL_700P_800P.pdf
>
> Feel free to interpret their specifications any way that you like.
> This will be the last comment I will make on this topic.
Received on Fri Jan 07 2005 - 12:39:45 GMT