RTL Logic

[Randy McLaughlin]

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.