Can anyone ID this?

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Omfgbbqpwn



Joined: 09 Apr 2017
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PostPosted: Tue Apr 17, 2018 10:40 am    Post subject: Can anyone ID this? Reply with quote

Anyone have any idea what this might be?
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wepwawet



Joined: 18 Mar 2004
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PostPosted: Tue Apr 17, 2018 11:24 am    Post subject: Reply with quote

Nope. Not even a clue on the manufacturer.
Was it loose? Anything around it where it was stored?
A board near with an empty socket?
What's on the backside?

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Omfgbbqpwn



Joined: 09 Apr 2017
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PostPosted: Tue Apr 17, 2018 12:00 pm    Post subject: Reply with quote

I think it might be from this? I found in the same box. Sorry I thought I figured out how to make my pics small enough for the forum but they are still mostly too big. And when I use an image resizing app theres too much jpeg.

https://imgur.com/a/A5tcx

Thanks,
~Andrew
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wepwawet



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PostPosted: Tue Apr 17, 2018 12:38 pm    Post subject: Reply with quote

I was about to guess something strange such as GE or NCR. So its likely a custom keyboard chip (driver, ROM?) from an NCR cash.
As it's in a horrible state maybe you try to carefully insert it into the socket - I assume fron the photo's view upside down. So the bent and rusty pin gets a chance to survive.

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PostPosted: Tue Apr 17, 2018 12:46 pm    Post subject: Reply with quote

Ok thanks for the info. I found 2 of those crusty keyboards and there are 2 of these chips and yes they are in very sad condition.

~Andrew
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isa-d



Joined: 16 Aug 2006
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PostPosted: Tue Apr 17, 2018 12:54 pm    Post subject: Reply with quote

Board was from an NCR cash register and chip it's a custom IC made probably by General Instruments (looks to the picture)
It's very hard to ID this chip, probably something similar to basic chips for '70 desktop calculators.
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CPUShack



Joined: 16 Jun 2003
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PostPosted: Tue Apr 17, 2018 1:30 pm    Post subject: Reply with quote

GI, AMI, SMC, all used that package so hard to tell
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isa-d



Joined: 16 Aug 2006
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PostPosted: Tue Apr 17, 2018 3:02 pm    Post subject: Reply with quote

CPUShack wrote:
GI, AMI, SMC, all used that package so hard to tell


You are right, but if I remember well Taiwan was common on GI chips and (for example) Korea for AMI.
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CPUShack



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PostPosted: Tue Apr 17, 2018 3:15 pm    Post subject: Reply with quote

yah and they made a lot of custom stuff too
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wepwawet



Joined: 18 Mar 2004
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Location: Seligenstadt - Germany

PostPosted: Tue Apr 17, 2018 3:47 pm    Post subject: Reply with quote

Andrew's chip has a font type I do not remember from GE, that's why I thought more about NCR. I must look for my few GI chips to see the country ... if there's any;-)
Ah yea, GI, not GE.
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Omfgbbqpwn



Joined: 09 Apr 2017
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PostPosted: Wed Apr 18, 2018 3:30 pm    Post subject: Reply with quote

Thanks for the answers all. Is there some kind of database where I can look up codes on chips by different manufacturers to figure out what the chips are? (TI SN7400N; TI SN7408J; Mitsubishi M5K4116P-2)

Thanks again,
~Andrew
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debs3759



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PostPosted: Wed Apr 18, 2018 3:41 pm    Post subject: Reply with quote

For logic chips (74xx and 74xxx part numbers) you can refer to https://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits

M5K4116P-2 is a 16K x 1-bit (2 KB) DRAM

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debs3759



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PostPosted: Wed Apr 18, 2018 4:05 pm    Post subject: Reply with quote

Other sites you might find helpful include

http://www.chiplist.com/
http://www.plasma-online.de/index.html
https://web.archive.org/web/20050204203908/http://www.chiplist.com/

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debs3759



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PostPosted: Wed Apr 18, 2018 4:33 pm    Post subject: Reply with quote

https://ganswijk.home.xs4all.nl/chipdir/
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