you probably don't need a chip, some transistors and resistors should make it working. Funny N. New Bedford, MA http://www.AuElectronics.selfip.com ----- Original Message ---- From: Rob Robson To: Microcontroller discussion list - Public. Sent: Wednesday, January 23, 2008 3:56:01 PM Subject: [EE]: single RS232 driver/receiver options I'm looking for recommendations for a single-package solution to interface a PIC to an outside-world serial port. I have +/-18V supplies available, so I don't need a charge pump device like the MAX232 (and it's extra caps). The TI SN75155 would do the job, but it costs more than the MAX232 does, and this is a cost-sensitive project. Any ideas? RR -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist