> > You don't need so much a perfect termination as a "good enough" > termination. Maybe you don't need to load it so much. > AC Coupling the termination also comes to mind. Lower DC load, but still > discourages the reflections. > Thanks! After the adventures with the 75MHz SPI flash, I thought I'd try to design for ideal. It seems that we should be able to properly terminate the lines. As mentioned before, we can reduce loading by making the trace have a higher characteristic impedance. Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .