The DS2482 (i2c bus master) suggests that it can run at 3.3V level.
http://datasheets.maximintegrated.com/en/ds/DS2482-100.pdf
Paul
On Fri, Nov 21, 2014 at 4:53 PM, Jan Kandziora <j...@gmx.de> wrote:
> Am 21.11.2014 um 19:56 schrieb Jerry Scharf:
> > Hi,
> >
> > I am looking at using the MAX31850 chip for my test setup. It is a 3.3V
> > only device (will not take 5V on power.) Are there any bus masters
> > and/or switches that support 3.3V for the power and data lines?
> >
> I'd say, don't use parasite power, run the bus on 5 volts and just put a
> kiloohms voltage divider right before the DQ pin of the slave. The
> slaves are open-drain on their DQ output, so this should be sufficient.
>
> Kind regards
>
> Jan
>
>
>
>
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