What mfg are GM eproms? No metric essay content

[Bruce Plecan]

I Trying to reprogram eproms from a
| GM 1227748 (sequential turbo MAF) ECM. I need to know the manufacturer
| of the chip to set up the device type in my EMP10 programmer. What is
| it? The programmer doesn't tell my as far as I know. Apparently I'm
| supposed to know?

I just use the generic entry..

I The chips are only marked
| "Delco" along with a bunch of part numbers that mean nothing to me. I
| can't even get one to read correctly without knowing that info. Any body
| want to help out a newbie?

There aren't any easy answers, on a new ecm.  Usually if there is a bin, on
the FTP, then you can look at it's size and go that way.

  If the chip has 24 pins and is in a black carrier then it is a 2732.
If in a memcal then it can be a 27128/256/512.
The bins listed for that ecm are S19 which I don't deal with.  If you
manipulate them and change them to bin files then a 4K lenght file is a
2732,  16K is a 27128, 32K 27256, and a 64K is a 27512.
Bruce
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