Kc89c72 Datasheet

The KC89C72 is an 8-bit CMOS microcontroller that belongs to the 89C series of MCUs. It is built around a high-performance CPU core with a maximum operating frequency of 16 MHz. The device is fabricated using a high-density CMOS process, which enables it to achieve low power consumption and high reliability.

The KC89C72 is a fascinating piece of computing history—a direct clone of the iconic AY-3-8910 sound chip. Although a dedicated "KC89C72 datasheet" is hard to come by, the wealth of information available for its parent chip, the AY-3-8910, acts as a perfect substitute.

is designed for stable performance in standard and industrial environments: 4.75 V to 5.25 V. Clock Frequency: Supports a range from DC up to 24 MHz . kc89c72 datasheet

The following pseudo-code writes a 440 Hz tone (A4) to channel A using a 1 MHz clock:

: Three independent onboard generators that produce accurate square waves by dividing the incoming primary system clock. The KC89C72 is an 8-bit CMOS microcontroller that

The KC89C72 is a device. A host processor communicates with the chip by writing data into a series of internal registers.

Example minimal C setup (SDCC-like pseudocode): The KC89C72 is a fascinating piece of computing

The AY-3-8910, originally manufactured by General Instrument (GI), was a cornerstone of 8-bit and 16-bit audio. It powered the sound in arcade machines (like Defender ), the Sinclair ZX Spectrum 128, the Amstrad CPC, the MSX, and even the legendary Atari ST series.

Commonly available in a DIP-40 (Dual In-line Package) or PLCC format, facilitating easy through-hole mounting on printed circuit boards.

Three independent analog outputs for music and sound effects. Noise Generator: