Kc89c72 Datasheet !!top!! [Full Version]

Selects from distinct wave patterns (e.g., fade-out, attack-decay, triangular loops).

: While it retains the classic pinout, modern versions often support a wider temperature range ( -40∘Cnegative 40 raised to the composed with power C +105∘Cpositive 105 raised to the composed with power C ), making them surprisingly robust for industrial use. Where It Lives Today

Run the outputs through a simple passive resistor-capacitor (RC) low-pass filter to remove ultrasonic high-frequency clock noise.

On a practical level, the KC89C72 datasheet is a lifeline. Original AY-3-8910 chips have become rare and expensive. But because the Soviet clone is pin-for-pin compatible, modern synth hobbyists and retrocomputer restorers can buy NOS (New Old Stock) KC89C72s on eBay for a fraction of the price. The datasheet is their canonical text, verifying that the strange, Cyrillic-stamped chip from a former Leningrad warehouse will indeed sing in a 1980s arcade board. kc89c72 datasheet

But why the “KC” prefix? This is where the datasheet becomes a historical artifact. The KC89C72 was manufactured in the Soviet Union (and later Russia) as part of a massive state-driven effort to reverse-engineer and produce Western electronics. The "KC" likely stands for "Kronda" or a similar factory designation, while the "89" suggests its development in the late 1980s, as the USSR teetered on the brink of collapse.

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For engineers attempting to repair hardware utilizing the KC89C72, the following electrical parameters are critical reference points. Selects from distinct wave patterns (e

+---_---+ RST / P3.0 | 1 28 | VCC P3.1 | 2 27 | P1.7 P3.2 | 3 26 | P1.6 P3.3 | 4 25 | P1.5 P3.4 | 5 24 | P1.4 P3.5 | 6 23 | P1.3 P3.6 | 7 22 | P1.2 P3.7 | 8 21 | P1.1 XTAL1 | 9 20 | P1.0 XTAL2 | 10 19 | GND P2.0 | 11 18 | P0.3 P2.1 | 12 17 | P0.2 P2.2 | 13 16 | P0.1 P2.3 | 14 15 | P0.0 +-------+ Pin Functions:

: Ensure stable voltage levels as specified in the full technical manual to prevent signal distortion. Thermal Management

: Features two general-purpose parallel input/output ports (Port A and Port B), making it useful not just for sound, but also for interfacing with joysticks, keyboards, or other peripherals. On a practical level, the KC89C72 datasheet is a lifeline

The interface uses three bus control pins to manage internal operations: : Pin 27 BC1 (Bus Control 1) : Pin 29 BC2 (Bus Control 2) : Pin 28 KC89C72 | In Stock - UTSOURCE.net

If you are looking for replacements or alternative documentation, the following chips are functionally identical: (The original)