OPkay, what I mean, is how many times can you flash the AVR32?
100,000 write cycles with 15 year data retention according to the data sheet.
System info: Win XP, WinAVR 20100110, AVR studio 4.18 build 700, JTAGICE MKII. Atmega 168 & 328, Xmega 192A3.
I wonder how much charge those micro capacitors hold anyway to loose 'some' charges over the 15 years and then suddenly become zero or soemthing. hmm...
At 15 years the microcaps don't check their microcalenders and see it's time to travel to the great big fabrication plant in the sky, their death is a progressive thing ;-)
Those kinds of "15 year retention" figures are more along the lines of "You can reasonably expect your data to still be in tact after 15 years". It might be much longer before you see failures, in some unfortunate cases it might be slightly less. Program memory checksumming is always a good plan for anything where you're hoping for a lifetime over a few years.
But FWIW I donno what kind of capacitance the floating gates in their have. Of the order of dickall-Farads I'd think.
© 2021 Microchip Technology Inc.