Kc89c72 Datasheet Info

Common in older, sound-intensive gambling machines.

The chip continuously produces analog sound based on these register values until changed. Application Areas

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The control pins define how the data bus behaves during a system cycle:

: 3 independent programmable tone generators and 1 noise generator. Common in older, sound-intensive gambling machines

By the end of this guide, you will have all the critical information found in an official datasheet, plus practical application notes, timing diagrams, and code examples.

: It is the go-to replacement for repairing vintage Nintendo Popeye and Sky Skipper boards. Share public link The control pins define how

They are all functional replacements with identical pinouts, making them suitable for use in retro computer restoration or custom sound hardware projects.

+---__---+ VSS 1 | | 40 VCC (+5V) N.C. 2 | | 39 TEST 1 ANALOG_B 3 | | 38 ANALOG_A ANALOG_C 4 | | 37 DA0 N.C. 5 | | 36 DA1 N.C. 6 | | 35 DA2 N.C. 7 | | 34 DA3 DA7 8 | | 33 DA4 DA6 9 | | 32 DA5 DA5 10 | KC89C72| 31 GND IOB7 11 | | 30 CLK (Clock In) IOB6 12 | | 29 BC1 IOB5 13 | | 28 BC2 IOB4 14 | | 27 BDIR IOB3 15 | | 26 RESET IOB2 16 | | 25 IOA7 IOB1 17 | | 24 IOA6 IOB0 18 | | 23 IOA5 IOA0 19 | | 22 IOA4 IOA1 20 | | 21 IOA3 +--------+ Use code with caution. Critical Control Bus Lines