Hi, I am looking for these: 1) PIC18LF2550 rev. B4 or newer. 2) PIC18LF2620 rev. B4 or newer 3) PIC18LF4620 rev. B4 or newer If you have it and willing to ship small 'hobby' quantity, please contact me. Thanks & best regards, -- WH Tan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist