RTL Logic

[Paul Koning]

>>>>> "Dwight" == Dwight K Elvey <dwight.elvey at amd.com> writes:

 Dwight> Hi 4000 series is good to around 15 volts someplace as I
 Dwight> recall.  I don't remember how low it goes but it seems like
 Dwight> 2.5v someplace.  It does run slower at lower voltages and
 Dwight> even at 5 volts, it is really slow for logic. It really
 Dwight> depends on the application.  

True, though RTL is pretty slow too, so 4000 series CMOS might fit
well in that respect.

On the other hand, RTL logic thresholds for a given Vcc are likely to
differ from CMOS thresholds, and that would be a trouble area.

       paul