Chip operating temperatures

[Sandy]

At 08:59 PM 9/24/96 EST, you wrote:
>  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 ?
>

I mentioned this problem a while ago. The solution became to not mount the
processor under the hood. Not the best, but solves much of the heat problem.
Even that still can be on the edge of the temperature extreems. 


Sandy