Sunday, December 31, 2023

GI AY-3-8912

sound generation chip

SOUND
AY-3-8912
GI 8329 CDA
TAIWAN


Microchip
(M) 1979
90-32033







Saturday, December 30, 2023

AY-3-8800

video chip from Unisonic Champion 2711

AY-3-8800-1
GI 7746


(C) 1977
G.I. Corp
80 30313



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







Friday, December 29, 2023

GI SPO256

speech chip from Tandy Color Computer Speech/Sound cart

SPO256A-AL2
(P) 1981 GI
CCA
GI 8417 TAIWAN


(C) 1983 GIC
24082C

GI PIC7040

microcontroller from Tandy Color Computer Speech/Sound cart

PIC7040-510
GI 8422 CAU
TAIWAN


(C) 1983 G.I. CORP.
XX-24078-510


 GI AY-3-8610

Ball and Paddle games

AY-3-8610-1
GI 7945


C30310
22

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


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

Wednesday, April 29, 2020

GI AY-3-8700
Tank games

AY-3-8700-1
GI 7805
TAIWAN

(C) 1977 G.I. CORP.
80-32006




Found a Combat circuit board on ebay.