IC Identify from DENSO EFI controller.. help?

[Oleg Gusev]

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. I sent a
 polite letter to Hitachi and in two days got a reply that this
 PIA is discontinued, but if i need the datasheet they would send it
 by regular mail.

 Oleg.

PS. If you wouldn't succeed, i'll try to find my own copy and scan it.