keithdoxey, I thought I would be on the cutting edge and use the 18F1320 device because of the self program eeprom feature but had many problems with the oscillator circuitry. I fought these problems for months readin g all of the errata sheets. Finally I gave up and went to the 16F88 and to this day have never looked back. The F88 has all the same features as the 1320 except the 4xPLL for the oscillator. I just thought I would add my 2 cents....

Dave Purola,
N8NTA