Datasheet ((install)): Kc89c72

The is a CMOS Programmable Sound Generator (PSG) designed as a direct, 100% software-compatible clone of the classic General Instrument AY-3-8910 . Primarily used in vintage arcade machines, slot machines, and home computers, it remains in production today as a reliable alternative for repairs and retro-hardware development. Core Specifications & Features

To function correctly, the KC89C72 requires an external . Unlike modern microcontrollers, it cannot generate its own clock from a passive crystal alone; a simple RC oscillator or a dedicated crystal oscillator circuit (such as one built with a 74HC00 NAND gate ) is typically necessary. Applications The chip is widely utilized in the following areas: kc89c72 datasheet

: Used as a replacement part for ZX Spectrum, MSX, and Amstrad CPC systems. The is a CMOS Programmable Sound Generator (PSG)

: On-chip Digital-to-Analog Converters provide three separate analog sound outputs. Technical Parameters Supply Voltage ( VCCcap V sub cap C cap C end-sub ) Clock Frequency 1 MHz to 2 MHz (Typical) Operating Temperature -40°C to +105°C (Extended range) Package 40-pin DIP (Dual In-line Package) Compatibility Fully compatible with AY-3-8910 and YM2149 Operational Requirements Unlike modern microcontrollers, it cannot generate its own

: Allows for the combination of tone and noise outputs across three independent channels.