[sdiy] CMOS chip questions

[Scott Gravenhorst]

"David G. Dixon" <dixon at interchange.ubc.ca> wrote:
>> Why Would one need any TTL interfacing? Just tell me what's missing on
>> CMOS replacements for TTL chips. It's probably 7404?
>
>Samppa's definitely got a point.  Mixing TTL and CMOS is kinda like putting
>'74 Chevy Impala parts in your Acura TL.

There are times when one needs more drive current than CMOS provides.  One way to deal
with that is parallel drivers, but another is bipolar TTL.  I guess it depends on
exactly how much current one needs.  I think, however, that for most synthesizer
designs, such currents are more rare than common.  Stepper motors?  But who puts a
stepper motor in a synth?

Maybe some exotic thing that uses electromechanical vibrating parts excited by a synth
circuit?  (reaching)

-- ScottG (who waits to find out about stepper motors in synths)
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-- Scott Gravenhorst
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