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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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 Posted: Mon Sep 17, 2012 8:55 am Post subject: Identification help request |
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I found these nice chips, but can't find what are exactly.
Can anybody help? |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Mon Sep 17, 2012 9:06 am Post subject: |
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the AMI are custom chips.. part number starts with C
the HPs are most likely custom masked ROMs
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Tue Sep 18, 2012 4:47 am Post subject: |
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Thanks, i supposed something like this...
But I have new question  |
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Neon_WA
Joined: 08 Nov 2008
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Location: Margaret River, West Australia
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| Posted: Tue Sep 18, 2012 5:37 am Post subject: |
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These Fairchilds are most likely Gate Arrays
The Fanuc marked ones are for a CNC machine
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There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
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Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
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| Posted: Tue Sep 18, 2012 6:02 am Post subject: |
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| Neon_WA wrote: | | These Fairchilds are most likely Gate Arrays |
Try Fujitsu 
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Tue Sep 18, 2012 6:27 am Post subject: |
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| Robev wrote: | | Try Fujitsu |
yep.. been a long day today 
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There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Tue Sep 18, 2012 6:49 am Post subject: |
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Sat Sep 22, 2012 7:35 am Post subject: |
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Another secret chip...
Last edited by JardaXor on Sat Sep 22, 2012 2:02 pm; edited 1 time in total |
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Neon_WA
Joined: 08 Nov 2008
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Location: Margaret River, West Australia
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Sat Sep 22, 2012 1:59 pm Post subject: |
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| Wow... where are informations like this one? About sign of test samples etc? |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Sat Sep 22, 2012 7:54 pm Post subject: |
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on this particular chip they have used internal die code name C5B
C5B denotes Samuel2 core
0E denotes 5th core revision
I still need to work if they skipped any letters used in core revision
Looking all my C3s in my database it appears they didnt use the ES marking unless the chip was likely to released to a OEM
this also why there are no print marking on the heat-spreader cap
for reference even thou it is not dated.. will be likely from around week 30 2001
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There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Sun Sep 23, 2012 10:42 am Post subject: |
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Interesting. I found some lists of VIA ES, have to study...
I'll look for proper board and try to run this one.
There are next picture for identification help... |
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berni
Joined: 17 May 2011
Posts: 59
Location: Germany
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| Posted: Sun Sep 23, 2012 2:07 pm Post subject: |
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The IMSG170 are color look-up tables for graphic display systems...
berni |
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Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
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| Posted: Sun Sep 23, 2012 2:10 pm Post subject: |
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| berni wrote: | The IMSG170 are color look-up tables for graphic display systems...
berni |
Thanks for that Berni as I also have some of each type of these Proms as well. 
Would love to know what the NCR Marked ones are if anyone knows
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JardaXor
Joined: 16 Aug 2012
Posts: 231
Location: Czech Republic
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| Posted: Sun Sep 23, 2012 2:20 pm Post subject: |
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| Fine, thanx ... is it PROM derrived from EPROM or masked? Does anyone know? |
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