Chrysler IC's in ECU

[JECFL98 at aol.com]

I have a 85 Chrysler K-car,  I looking for information on the IC's that are 
in the ECU

   The IC's are  :  Motorola  SC88352CP           CPU
                         Motorola  SC87313CP            Port Expander ?
                              ??       +B8432                   RAM ?
                              ??       4289473                 driver IC's

Any info about mid 80's chrysler ECU internal workings will be helpfull.  I 
see alot about Ford and GM, but nothing yet on Chrysler.

             Please respond to     JECFL98 at aol.com