[s-cars] Which chip is this?

[Igor Kessel]

Robert Pastore wrote:
>
> Igor:
>
> Info you provide re Bosch Eprom PN is accurate (as expected), but...
> Are you referring to the padding under the stock label to prevent adhesive
> from gumming up the UV window?
> I've never seen any writing on this paper, but you had me going this morning
> -- I peeled the label back on a half dozen chps -- NOTHING!
> I felt like I was playing with soda caps trying to win a free bottle of
> coke!
>
> Bob
>
> -----Original Message-----
> From: Igor Kessel [mailto:igor at s-cars.org]
> Sent: Wednesday, August 28, 2002 10:22 AM
> To: Dave Burig
> Cc: s-car-list at audifans.com
> Subject: Re: [s-cars] Which chip is this?
>
> Dave Burig wrote:
> >
> > I have finally opened up my ECU, and without opening the circuit board
> > "sandwich", looked in and could read the following number (I think it is
> the
> > same on both the top and bottom chips)
> > 1 267 357 394  Numbers in black type, underlined with black magic marker.
> >
> > The car also has an aftermarket exhaust manifold with a number that begins
> > L03111...
> > Any info would be appreciated.
> >
> > TIA
> >
> > Dave "Mystery Chip" Burig
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
>
> Dave,
> that's only the internal Bosch p/n for the EPROM. It is of no relevance
> to your recearch.
>
> What you need to do is read what's written on the PAPER stick-on label
> that coveres the EEPROM's glass window for the UV eraser. Hopefully it
> will contain the hexadecimal checksum number. It will be sort of a
> signature of a particular software burnt into the chip. I am sure a few
> of us on the list will be able to help you identify it.

Bob,
what I meant was an aftermarket chip would normally have an paper ID
label with a checksum on it. I thought Dave was interested in
identifying the aftermarket chips in his ECU. Now, after he has posted
the p/n of one of his chips it has become apparent that her still has
the OEM chips in the brain

Now, here's the info about the OEM chips with which my '97 UrS6 came
from the factory.

The BOTTOM (main board) EPROM.
Motronic p/n (on board): S251
Silver label (Bosch p/n): 1 267 357 483
28-pin DIP
Make: Ti
Memory capacity: 256K
Ti p/n:
-20JT
B 58 545
LD 58A 647P

The TOP (aux board) EPROM.
Motronic p/n (on board): S701
Silver label (Bosch p/n): 1 267 357 391
28-pin DIP
Make: Ti
Memory capacity: 512K
Ti p/n:
-20JT
B 58 543
BLX 59A 046P

--
Igor Kessel
two turbo quattros