Hi @Alexandre_Borali,
I know it seems weird. We normally set our temperature grade for our products to be inclusive for the most sensitive component. In the specific case of this product we conducted some operational tests at higher temperature range. Upon these tests we updated the documentation with the new range for the operational temperature of the device.
However, we didn't have a way to make the tests for the storage temperature, therefore we updated just what we were able to test and left the other one as per specifications of the datasheet for the most sensitive component.
This is where the discrepancy comes from.
Best regards,
Bianca
Bianca's post in JTAG-SMT3-NC different ranges of temperatures. was marked as the answer