On 26/04/07, Bob Axtell wrote: > I replace these with ST232A. I NEVER use MAXIM devices, ever. I can second the recommendation for the ST devices. I use the ST232 and ST485 in a couple of products - never had a problem with them. Dan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist