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I need help with the ID of a 16pin IC. In an act of 100% carelessness, two cables were incorrectly inserted into one of the controls, which resulted in a 16pin IC getting hot and virtually destroying the ID printed on the IC.

Along the bottom I believe I can make out XNAH0828, and the latter part of the top line is perhaps one of these ???? 8084CPE ????? 3084CPE or even 3Q84CPE but I think the latter unlikely…

Via Google I haven't been able to identify the specific IC. The circuit board was made or designed by I.T.Solutions 2010.

It links to a small LCD display and sends signals to the stitch regulator system.

I also Googled I.T Solutions, there is a company with that name but not sure it is the correct one.

The IC is in a base and although damaged, I have sufficient skill to de-solder and replace the base.

I know I am asking a lot, but at the moment we are waiting to see if Tin Lizzie (Utah based) who make the machine can find a replacement board.

photo of damaged IC

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  • \$\begingroup\$ What does "in a base" mean? If the IC is in a socket, there should be no need to desolder anything. \$\endgroup\$ – Dave Tweed Mar 24 '17 at 18:51
  • \$\begingroup\$ It looks very dusty - could you give it a once over with a small brush an re-photograph - might get a bit more of the chip id. \$\endgroup\$ – JIm Dearden Mar 24 '17 at 18:53
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    \$\begingroup\$ That's a Freescale Semiconductor logo (now NXP) on the left, which should help narrow down the search a bit. \$\endgroup\$ – Dave Tweed Mar 24 '17 at 18:55
  • \$\begingroup\$ Also look at other chips on the board - there may be more than one of this type \$\endgroup\$ – JIm Dearden Mar 24 '17 at 18:56
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    \$\begingroup\$ I'm pretty sure this is just the most obvious fault on the board. Even if you can miraculously find a replacement programmed chip (if it is in fact programmed) probability of that fixing the board is slim at best. \$\endgroup\$ – Trevor_G Mar 24 '17 at 19:18
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Looks like a Freescale MC908QB4CPE microcontroller. There are sources for the chip or near-equivalent replacements, but unless you have the code to be burned to it and a programmer to burn it with there is no way to create a duplicate of the original by yourself.

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    \$\begingroup\$ Yeah, and if it killed the processor there's an excellent chance that the voltage regulator(s) and other parts are damaged as well. \$\endgroup\$ – JRE Mar 24 '17 at 19:04
  • \$\begingroup\$ Thanks to everyone for their help. The fact it is the only "plug in" IC on the board I wondered if it was a programmable item. There is a small LCD screen attached to the board that gives text readings for settings on the machine. I know there is a risk of other items being damaged. Thanks again to everyone. It seems we may now be in the hands of the manufacturers, who do not have the best record for service. Regards Peter \$\endgroup\$ – Peter Lawford Mar 24 '17 at 19:55

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