QOur customer want to analysis ADuC7021 thermal performance need know the
case-junction temperature parameter. Would you please let me know the related
1. Case to Junction Thermal resistance?
2. How long is the life time while chip Tj=120C ?
AI’ve calculated the flash retention and for Tj=120C it is 3.57 years.
This is only an estimate as the part is qualified with a Tj of 85C with a spec
of 20 years.
It is recommended that the flash be reprogrammed / refreshed yearly if the part
will be constantly operating at high temperatures
As for more reliability data here’s what available on the Analog reliability