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Added some more detail to last bullet point to make it relevant to the question
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Dean
Dean
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Just reading the datasheet of the attiny13 it says that it can hold its data for 20 years at 85 degrees Celsius and 100 years at 25 degrees Celsius.

  • Is this irrespective of the read and writes on the micro for example I turn it off and keep it at a constant temperature of 85 degrees Celsius for 20 years and it will loose its data?
  • How can it "loose" its data? I fail to see this concept.
  • Also what is with the unit ppm(parts per million?) its mentioned on page 6 in the data retention section but don't understand what its talking about. I've seen it regularly when talking about crystal oscillators but can't understand why its used.

Just reading the datasheet of the attiny13 it says that it can hold its data for 20 years at 85 degrees Celsius and 100 years at 25 degrees Celsius.

  • Is this irrespective of the read and writes on the micro for example I turn it off and keep it at a constant temperature of 85 degrees Celsius for 20 years and it will loose its data?
  • How can it "loose" its data? I fail to see this concept.
  • Also what is with the unit ppm(parts per million?) I've seen it regularly when talking about crystal oscillators but can't understand why its used.

Just reading the datasheet of the attiny13 it says that it can hold its data for 20 years at 85 degrees Celsius and 100 years at 25 degrees Celsius.

  • Is this irrespective of the read and writes on the micro for example I turn it off and keep it at a constant temperature of 85 degrees Celsius for 20 years and it will loose its data?
  • How can it "loose" its data? I fail to see this concept.
  • Also what is with the unit ppm(parts per million?) its mentioned on page 6 in the data retention section but don't understand what its talking about. I've seen it regularly when talking about crystal oscillators but can't understand why its used.
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Dean
Dean
  • 8.5k
  • 27
  • 74
  • 120

Data retention on a microcontroller

Just reading the datasheet of the attiny13 it says that it can hold its data for 20 years at 85 degrees Celsius and 100 years at 25 degrees Celsius.

  • Is this irrespective of the read and writes on the micro for example I turn it off and keep it at a constant temperature of 85 degrees Celsius for 20 years and it will loose its data?
  • How can it "loose" its data? I fail to see this concept.
  • Also what is with the unit ppm(parts per million?) I've seen it regularly when talking about crystal oscillators but can't understand why its used.