On Mon, July 29, 2013 4:48 am, Peter wrote: > Spent most of the day without any success, researching on Microchip site > and back archived emails + web, looking for a possible answer to the > following: > > What does the "K" in Microchip part numbers mean for example PIC18F44K20 > ? > or > What does the "J" in Microchip part numbers mean for example PIC18F46J50 = ? > > I just picked these two from a list,thinking that it would help in > researching ... but sigh ... Don't spend too much time thinking about one being better than the other- look at the specifications- the J or K specifies the silicon process technology (transistor size is a big thing, but there is a whole lot more to it). With the very earliest parts the distinction was more clear, but gets muddy as time goes on. J's were Microchip's the first 3V native parts, and it was more about bigger memory, but didn't have great low power numbers. K's have much better low power operations, but not as much memory. Matt Bennett Just outside of Austin, TX 30.51,-97.91 The views I express are my own, not that of my employer, a large multinational corporation that you are familiar with. --=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 .