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..

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. :-)

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

http://i.imgur.com/gGwqqlGl.jpg

Mmm, I was hoping to see some ceramic cased chips. Mil spec! :-D

Thanks!