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PostPosted: Thu Jan 30, 2020 10:45 am 
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The latest overlay I did:

https://is.gd/7HRkOq

Fat Agnus/CSG8375R0 Metal vs. Poly


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PostPosted: Thu Oct 08, 2020 11:07 am 
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While the vast majority of TED chips for the plus/4, C16 series was

Revision 2 of the 8360 chip there's also a revision 3 out in the wild:

https://is.gd/wnXAU7


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PostPosted: Mon Oct 12, 2020 9:34 am 
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In case you want to see a side-by-side comparison of the

8360R2 vs. 8360R3:

https://is.gd/eybQeV


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PostPosted: Mon Oct 12, 2020 10:08 am 
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Location: England
I can't see any changes jumping out at me, other than the addition of the mask copyright. Presumably the behavioural difference is known? Or is it a difference in quality, in some way?


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PostPosted: Mon Oct 12, 2020 12:22 pm 
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So far I think the ESD protection at the pads was changed and a the back-bias generator was changed very(!) slightly.

Apart from that I didn't see anything else - but I didn't take a look at full resolution yet.


My guess is that it was just a change for a different manufacturing process. Note: the R2 was introduced 1984
and the R3 apparently 1986 and MOS migrated from NMOS to HMOS-I and HMOS-II inbetween IIRC.

MOS/CSG did the same with the 6581 which had almost identical layouts from R2 to R3 and R4. Only changes for
the manufacturing process (e.g. die shrink).


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PostPosted: Tue Oct 20, 2020 8:19 am 
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Here's a comparison of the

CSG8501R4 vs. MOS6509R7 die:

https://is.gd/9VbUjo


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PostPosted: Sat Oct 31, 2020 2:54 pm 
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The 2nd most important chip:

https://is.gd/bITbIm

6581R4AR metal + poly layer


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PostPosted: Mon Nov 23, 2020 11:33 am 
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Here's some comparison of the PAL vs NTSC version
of the VIC-II:

https://is.gd/PYsfv9


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PostPosted: Tue Dec 01, 2020 3:42 pm 
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Finally the PAL VIC-II:

https://is.gd/ZvoqC3


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PostPosted: Sat Feb 06, 2021 5:08 pm 
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Just for the sake of it I started vectorizing the 6509R7:


Attachments:
MOS6509R7.jpg
MOS6509R7.jpg [ 1.21 MiB | Viewed 909 times ]
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PostPosted: Fri Dec 17, 2021 8:00 am 
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Posts: 91
A new comparison:

https://cdn.knightlab.com/libs/juxtapos ... a7ff2ee17c


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