Hi Mike,
> What's wrong with the simple Open Collector level shift idea? You have
> access to the 3.3 supply on the DIO as I recall.. just wondering what
> you're thinking is there.
I've no problems with that idea, I was just throwing out
another option.
What's the power-sequencing tolerance of using just
an open collector? What's its current drive capability?
I'd have to fire up LTSpice and walk through a few
use-cases to figure out if everything was safe.
The TinyLogic parts have all the safety and current
drive features that I require, so I tend to just use them.
If I had cost-concerns then I might look for alternatives,
but the parts are relatively inexpensive; 14c each / 100
on Digikey NC7SZ125P5XCT-ND.
Cheers,
Dave
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ts-7000/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/ts-7000/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|