GI AY-3-8610
Ball and Paddle gamesAY-3-8610-1
GI 7945
C30310
22
(C) 1977 G.I. CORP.
80-30310
I bought an AY-3-8610 from AliExpress to compare to AY-3-8600: https://seanriddledecap.blogspot.com/2018/05/gi-ay-3-8600-ball-and-paddle-games-ay-3.html
80-30310
I bought an AY-3-8610 from AliExpress to compare to AY-3-8600: https://seanriddledecap.blogspot.com/2018/05/gi-ay-3-8600-ball-and-paddle-games-ay-3.html
I was a little concerned about getting a counterfeit, but it is definitely a GI chip. It has the same number on the die as AY-3-8600, but the layer revisions are all L, whereas the revisions on the AY-3-8600 I decapped were all J.
I compared the dies and found 5 areas with changes. I created two GIMP XCFs with the 2 dies in layers, and a third layer with circles around the changed areas. I also uploaded jpgs because the XCFs are so large: www.seanriddle.com/gi
So the ay-3-8600 and the ay-3-8610 are the same die (80-30310) but with a different revision, J and L respectively. So we can confirm that both contain the two "rifle" games, but only in the ay-3-8610 the rifle games are easily selectable (using the pin 22) and in the ay-3-8600 they are not. However, some console manufacturers had found ways to activate/select the rifle games even with the ay-3-8600. Very interesting, thank you.
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