Chip operating temperatures

[Al Grippo]

  IC chips for automotive use are generally specified as having operating 
temperatures from -40 deg C to 125 or 150 deg C.  The 68332 chips bought in the 
group pcb buy were rated 0 deg C to 70 deg C (32 deg F to 158 deg F).  I'm sure 
these are ok for prototypes, but is anyone concerned about them lasting 50-100 
k miles in a real environment ?

  Most of the critical parts for the board which I have accumulated are in the 
automotive temperature range, but I have not been able to get the 68332 or sram 
chips in this range.  I know the part numbers, but was told by several major 
suppliers (newark, future, hallmark) that these industrial/ milspec chips are 
not stock items and must be ordered in large quantities. The same applies to 
sram (the highest industrial range here is -40 deg C to 70 deg C). Is anyone 
interested in a group buy for these ?

 Al Grippo