>Hi All ! > >Have you anybody information and URL for 4 bit automobil >microcontroller COP402 ? > >Thanks > >Best Regards > Vlad. The COP series is by National Semiconductor. Check out their web site. I have the newest COP8 data book here but it doesn't go into the COP4 series. Actually, I just checked and found that I also have their 1989 Microcontroller Handbook which does list the COP400 series. You may still be able to get a copy of that book from a distributor or from NS themselves. Dwayne Reid Trinity Electronics Systems Ltd Edmonton, Alberta, CANADA (403) 489-3199 voice (403) 487-6397 fax