: Allows for the combination of tone and noise outputs across three independent channels.
: Includes two general-purpose 8-bit parallel I/O ports, consistent with the original AY-3-8910 pinout. kc89c72 datasheet
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: : Allows for the combination of tone and
: Capable of producing pseudo-random noise pulses, essential for percussion and sound effects. Unlike modern microcontrollers, it cannot generate its own
: Used as a replacement part for ZX Spectrum, MSX, and Amstrad CPC systems.
: Signal levels can be controlled directly by a processor or via an internal envelope generator.
The KC89C72 shares an identical pinout with the , the YM2149F , and the Winbond WF19054 . This makes it a drop-in replacement for any circuit designed for these 40-pin sound generators. Placa KC89C72 - Garoa Hacker Clube