11 Jan
2005
11 Jan
'05
12:32 a.m.
>>>> "Dwight" == Dwight K Elvey
<dwight.elvey(a)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