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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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 Posted: Mon Feb 22, 2016 5:51 am Post subject: molka's Signetics 2650 family CPU tester |
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I'm working on the design of the next CPU tester board for evaluating 2650 family CPUs.
For validating the tester I'm looking for test CPUs, see below.
If someone has surplus of any of them, please let me know, I'd like to buy them.
I need:
Philips MAB2650A, MAB2650A-1
Signetics 2650, SCN2650AC1N40, SCN2650AC2N40,
2650BI, 2650B-1I, 2650BN, 2650B-1N :-(only seen in datasheet)
Synertek 2650-P-01, 2650-P-02
The 2650 CPU tester is ready. The manual is here:
https://drive.google.com/file/d/0B6t52HmlhZkYdDFjNF9vanoteXM/view?usp=sharing
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Last edited by molka on Mon Jul 18, 2016 3:00 pm; edited 3 times in total |
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Birdman.
Joined: 13 Nov 2012
Posts: 833
Location: Finland
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| Posted: Mon Feb 22, 2016 9:48 am Post subject: |
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| I've opened Synertek 2650-P-02 for die shot and die is very different and a lot simpler than Signetics 2650AI die, so at least my Synertek chip isn't 2650 CPU after all. I'll try to release these two die shots in a couple days. |
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isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
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| Posted: Mon Feb 22, 2016 12:47 pm Post subject: |
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if you don't find them to buy
I have
Philips MAB2650A, MAB2650A-1
Signetics 2650, SCN2650AC1N40, SCN2650AC2N40,
Synertek 2650-P-01, 2650-P-02
but only for test like 6502 |
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Mon Feb 22, 2016 2:21 pm Post subject: |
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| Birdman. wrote: | | I've opened Synertek 2650-P-02 for die shot and die is very different and a lot simpler than Signetics 2650AI die, so at least my Synertek chip isn't 2650 CPU after all. I'll try to release these two die shots in a couple days. |
Not sure, but I think Synertek 2650-P-02 similar to Signetics 2650. And 2650A has a new mask design.
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Mon Feb 22, 2016 2:26 pm Post subject: |
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| isa-d wrote: | if you don't find them to buy
I have
Philips MAB2650A, MAB2650A-1
Signetics 2650, SCN2650AC1N40, SCN2650AC2N40,
Synertek 2650-P-01, 2650-P-02
but only for test like 6502 |
Thanks! It's very kind of you.
But first I try to buy some, that I can use for testing later on, not just for the prototype.
I'm waiting offers, please!
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Birdman.
Joined: 13 Nov 2012
Posts: 833
Location: Finland
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| Posted: Mon Feb 22, 2016 7:48 pm Post subject: |
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I've now released those die shots so that you can see the dies http://www.cpu-world.com/forum/viewtopic.php?t=21226&start=165
Synertek one can't really be earlier version because differences are so large with completely different transistor counts. It's possible that I opened fake chip, but I don't understand why someone would fake these. |
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Tue Feb 23, 2016 5:42 am Post subject: |
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| Birdman. wrote: | I've now released those die shots so that you can see the dies http://www.cpu-world.com/forum/viewtopic.php?t=21226&start=165
Synertek one can't really be earlier version because differences are so large with completely different transistor counts. It's possible that I opened fake chip, but I don't understand why someone would fake these. |
Yes, that doesn't seem to be a CPU. But it worth a try with my tester lol.
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Thu May 19, 2016 3:56 pm Post subject: |
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The prototype of Signetics 2650 CPU tester is ready. 
I have some spare PCBs so I can solder them if required, at price $44.00
The link to the manual is in the first post.
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Vegeta
Joined: 13 Apr 2013
Posts: 7049
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| Posted: Thu May 19, 2016 4:01 pm Post subject: |
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one for me please
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isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
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| Posted: Fri May 20, 2016 12:00 am Post subject: |
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I confirm one for me
thanks |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Qwerty
Joined: 20 May 2005
Posts: 3141
Location: Germany
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| Posted: Fri May 20, 2016 2:36 pm Post subject: |
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As usual - one for me, please.  |
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lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
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| Posted: Sat May 21, 2016 5:24 pm Post subject: |
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one for me
thx |
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Tue May 16, 2017 5:23 pm Post subject: |
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One for me if still available.
Gennadiy |
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Wed May 17, 2017 2:39 am Post subject: |
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| gshv wrote: | One for me if still available.
Gennadiy |
No problem. Thanks!
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