Hi, NOTE: my application is using temperature diodes. I am having repeatability issues, Sometimes the addressing on 4 devices is not working ( works on only first one ). All your diagrams only show a transistor application. When using diodes, I assume the crossing of Anode and Cathode connection works the same as tranistors to set the address on power up. Sometimes it works on mutliple addrs and sometimes not. Also I am getting garbage data back but other times very repeatable expected temperatures. Maybe noise problems ? How important is the Series resistors and diff filter Caps ? I am not using either.