2011/6/9 Byron Jeff <byronjeff@mail.clayton.edu>:
> One question: Are the inputs 5V tolerant? I see it's a 3.3V part.
>
> BAJ
>
As others pointed, source voltage is not 5V tolerant.(1)
Although, i've never heard of a burned propeller  by 5V rails. (in
fact, i've never heard for a burned propeller, at all)


When interfacing 5V devices with propeller, most of cases you can use
a series resistor to limit the current across (2)

Some other cases, you need a more sophisticated solution (3)

(1) http://forums.parallax.com/showthread.php?85841-Propeller-Chip-5V-toler=
ant
(2) http://forums.parallax.com/showthread.php?132168-Prop-Pin-Protection-Re=
sistor&highlight=3Dvolts
(3) http://forums.parallax.com/showthread.php?90723-Interfacing-bi-directio=
n-serial-5V-devices-to-the-Prop-!-!&highlight=3DVolts

Regards

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