IC Identify from DENSO EFI controller.. help?

[Mike Morrin]

At 10:43 am 11/30/98 +0100, Oleg Gusev wrote:
>Jerry Wills wrote:
>> 
>> Hitachi HD63B21P  40DIP  6800 PIA
>>          but no second source or data sheet available from IC master or
Hitachi
>> 
>
> Hi Jerry,
>
> when i have opened the Chrysler SMEC, it also had HD63B21P.

At least some of the 63xx, 63Axx and 63Bxx series parts from Hitachi were
second source 68xx Motorolar parts, usually with slight improvements.  I am
pretty sure that the 63B21 is a slightly faster 6821.

regards,

Mike