My manager can't locate P87C51RB-4N on Digikey (and a few other sites which I can't remember). He mentioned that Arrow is a four week lead time. I wouldn't mind using the P89xxx as alternative. There is nothing magic about Philips. Other manufacturers would be OK. The key is I need the EROM. Thanks, Doug
Doug; Suggest that you contact your local Philips Rep. For you, I beleive that is 972-705-2485. All MCU are streching out and the 40Pin parts are just not too popular but the Reps might have a sample or two until you can get your's ordered. Also, there are a number of Semiconductor brokers that have access to older or less used parts. They normally have parts the Distributors don't stock but they also have high prices. Good luck. Bradford
Doug; Second suggestion. http://www.sourceESB.com. Bradford
Arrow, Avnet, Pioneer, Future. Erik