GI AY-3-8912

sound generation chip

SOUND

AY-3-8912

GI 8329 CDA

TAIWAN

Microchip

(M) 1979

90-32033

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AY-3-8800

video chip from Unisonic Champion 2711

AY-3-8800-1

GI 7746

(C) 1977
G.I. Corp

80 30313

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GI AY-3-8913

Sound Generator from Tandy Color Computer Speech/Sound Cart

AY-3-8913
GI 8328 C-A

TAIWAN 8415

G.I. CORP.

(C) 1982

90-32120 001

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GI SPO256

speech chip from Tandy Color Computer Speech/Sound cart

SPO256A-AL2

(P) 1981 GI

CCA

GI 8417 TAIWAN

(C) 1983 GIC

24082C

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GI PIC7040

microcontroller from Tandy Color Computer Speech/Sound cart

PIC7040-510
GI 8422 CAU

TAIWAN

(C) 1983 G.I. CORP.

XX-24078-510

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 GI AY-3-8610

Ball and Paddle games

AY-3-8610-1
GI 7945

C30310

22

(C) 1977 G.I. CORP.
80-30310

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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