The intention was to use the 6N137 - should be fast enough for this application. _______________________________________ Feel the power of the dark side! Atmel AVR Roy Hopkins Tauranga New Zealand _______________________________________ > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf > Of Alan B. Pearce > Sent: Wednesday, 27 September 2006 8:47 p.m. > To: Microcontroller discussion list - Public. > Subject: Re: [EE] I need a circuit for a bidirectional > optoisolatedTTLinterface > > >You will find that the 8N137 opto > > whoops, that is (off course) supposed to be 6N137 ... > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist