I am shopping for a PIC micro-controller for use in an automotive application. I noticed that PICs are offered in both "industrial" and "extended" temperature ranges ([-40C to +85C] vs [-40 to +125]). I should use the extended version, but due to availability, I may be forced to use the industrial or do something else entirely.
In any case, I became confused when I looked at the datasheet and saw that there is no distinction made on the line where operating temperature is specified. Here is an excerpt from page 265 of the datasheet found here: http://ww1.microchip.com/downloads/en/DeviceDoc/39995d.pdf
The subsequent tables all make the distinction as seen here:
Can anyone decipher the meaning of this temperature range? Are the two versions fabricated using the same process and the extended versions are simply qualified to a higher level? Should I be concerned that the industrial version of the chip will fail at higher rates between 85C and 125C?