I think they are pull ups, between the SDA, SCL, and Vdd? thanks ----- Original Message ----- From: "Jai Dhar" To: Sent: Thursday, February 13, 2003 11:12 AM Subject: Re: [ee]: how do you calculate the resistor for an open drain? > Which resistors are you talking about? Series resistors to the SDA/SCL pins, > or the pullup ones on the SDA/SCL bus? You don't *need* the series resistors.. > it would probably work just fine with the pullup's. > > > Quoting rad0 : > > > unfortunately I need to go over this again > > > > 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? > > > > thanks > > > > -- > > http://www.piclist.com hint: The PICList is archived three different > > ways. See http://www.piclist.com/#archives for details. > > > > > > > ---------------------------------------- > This mail sent through www.mywaterloo.ca > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.