Author Topic: Flash memory NOR chip retention data  (Read 1768 times)

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Offline tiago1986

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Flash memory NOR chip retention data
« on: November 28, 2021, 11:22:09 am »
in the datasheet of my flash memory NOR ST M29W640FT 70N6 H has a data retention of 20 years, is it possible to increase this retention time to unlimited? the chip is installed in a snes cartridge

Offline Jeroen3

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Re: Flash memory NOR chip retention data
« Reply #1 on: November 28, 2021, 12:45:11 pm »
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Online ataradov

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Re: Flash memory NOR chip retention data
« Reply #2 on: November 28, 2021, 05:55:36 pm »
Here we go again. No, physical things degrade with time. It is impossible to make things last forever. Literally nothing in the Universe lasts forever.

20 years is just an industry standard "forever, but don't sue us if something fails". In reality under room temperature conditions it will last as long as your physical package lasts. No manufacturer would want to investigate failures on a 20 year old device.

Also, if you are worried about the contents, just refresh it every 10 years. 20 years retention is from the last erase and write time.

Also, PCBs themselves degrade with time and also have limited time.

But we have already discussed that.

« Last Edit: November 28, 2021, 05:58:35 pm by ataradov »

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