On Tue, 24 Apr 2007, Jan-Erik Soderholm wrote: > peter green wrote: > >> iirc PIC24 chips are all j series with the >> horrible flash endurance that brings wheras DSPIC33 >> chips have the conventional long life flash. > > > The datasheet for the "PIC24FJ64GA004 FAMILY" > (DS39881B) says : > >> - 10,000 erase/write >> - 20-year data retention minimum Those smaller (44 pin and fewer) 24F parts are the exception. All of the other 24F (the 64 pin and larger), and all of the 24H are 1,000 cycle. And note that the 10,000/1,000 specs are "typical"; the "minimum" is 10% of those figures. -- John W. Temples, III -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist