Anyone with specs for old Hitachi components?

[Tom Sharpe]

Just for reference, There are lotts of uncommon ECUs at our local foreign car junkyard - things that
don't match anything else. I got two feet of harness from a saab just for the plug. HTH TomS

k1drbar wrote:

> I have been hacking around inside some old ECUs for old Audi turbocharged engines which were built
> for Audi by Hitachi.  I have been able to acquire spec sheets and programming information for the
> microprocessors (MC680X-based), but there are a couple custom LSI devices for which I haven't been
> able to obtain any sort of information.  One part that does seem to be commonly used is a 42 (yes,
> that's right!) pin DIP which has a part number of D2808C on the cover, and another is a ceramic
> substrate with 52 pins and a label HD46506.  Both parts have Hitachi logos on them.  If anyone has
> any leads as to where I could get specs I would most certainly appreciate it!
>
> TIA!
> Steve Buchholz
> San Jose, CA (USA)
>
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