I have a 3.3V low speed bus which I need to interface with a 5V TTL system. I believe I could use something like a MAX3000E to do this. Most of the signals are 5V output meaning the output is that of the 5V TTL system which the level translator should convert to 3.3V. Only a couple of signals are 3.3V output that needs to be up-translated to 5V. I think the MAX3000E should be up to the task but I want to confirm this. What's the piclist advice on this matter? Any recommendations that people have used before succesfully? Thanks, Jim -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist