22/07/2004 12:25:37, Steve Wiseman wrote: >Err, no. If you look at the BGA package... I've been pondering datasheets and design rules, and I think that the .65mm versions (that's any but the PXA270) require microvias, and even then, the tracking will be excitingly fine pitch. PXA270 is physically smaller than the other 27X devices, but does require a separate boot flash. Hmm, decisions. I guess I need to find current prices for microvia boards (and poke Protel and Specctra, to see what the support is like for them) Steve