[sdiy] Best way to interface 3V and 5V logic ICs on the same circuit ?

[John Speth]

> What is the best way to interface different logic
> ICs on the same
> circuit, some using 5V and others using 3V (like a
> uC using 3V
> and a DAC or external RAM using 5V) ?

Years ago you'd need to "roll your own" logic level
translators.  Now you just buy a chip which handles
the whole job.

Take a look at:

http://para.maxim-ic.com/cache/en/results/5043.html

They will even send you samples.

JJS



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