Rolf wrote: >>> temp range from -40 to +40 >> >> Make sure to use E parts then. > > Why? For many PICs the standard "I" temperature grade is only specified for 0-70C, and the optional "E" temperature range is specified for something like -40C to +125C. Some PICs only come in one temperature grade. As always, you have to read the datasheet. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist