At 05:23 PM 2/13/2003 +0000, you wrote: > > I am trying to hook up an I2C A/D converter, > > and the SDA and SCL lines show a 2K resistor > > on their example, but the example is using 2.7 to 3.6 vdc > > supply. > > > > So, this can't be what's needed for a 5 vdc supply, can it? > >Get the Definitive I2c document from the Philips web site. It explains >everything in plenty of detail, including how to match 3 & 5V logic. > >http://www.semiconductors.philips.com/buses/i2c/support/index.html > >and right down the bottom, almost the last link is the I2C specification. Yes, this is the right place to go.. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.