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Old 21 March 2013, 16:11   #1
Yakumo9275
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CIA chips

going through my bunch of CIA chips,

I noticed I have one thats an 8520PD, dated in 1991. Is there any difference in the 8520PD to the 8520A-1 ?? I see the SMT version on the a600 is 8520PL.. maybe 8520PD, the D is for DIP.

the 8520PD is numbered "318029-02". I noticed from the bboah they list an 318029-03 as 8520A-1..

The oldest ones I have are 8520R2 from 85..
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Old 23 March 2013, 07:41   #2
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They are functionally the same. As long as has the same model number (8520) and it fits in the socket, you're golden.

Post pics please if you have a camera. :-)
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Old 23 March 2013, 15:07   #3
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this is just what I had sitting on me desk; mix of old miggy 1000 chips and a500 chips

from top then left to right;
kickstart 1.3 NEC chip -> 315093-02
MOS 8364R4, dc 3485 S

left to right;
MOS 8361R3, dc 2585 S
MOS 8362R5, dc 3585 S

MOS 8520R2, dc 2985 S
MOS 8520R2, dc 2685 S
MOS 8520A-1, dc 2087 24
CSG 8520A-1, dc 5090 24
CSG 8520A-1, dc 5090 24
CSG 8520PD, dc 4391 24, 318029-02

CSG 8362R8, dc 5090 28
CSG 5719, dc 4990 44
CSG 8364R7, dc 5090 27

amiga 1000 bootrom rev.11 odd/even pair

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Old 23 March 2013, 18:56   #4
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Mmm, I was hoping to see some ceramic cased chips. Mil spec! :-D

Thanks!
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