Kc89c72 Datasheet Jun 2026

: Parts should be kept in dry storage cabinets with humidity protection to maintain lead integrity.

If you are working on a custom retro design or an automated diagnostic tool,Alternatively, we can detail the exact available in register R13. AY-3-8910/KC89C72 Sound Generator - MikesArcade.com

The is often preferred in battery-powered projects due to its lower current draw. However, software originally written for the AY-3-8910 will run on the KC89C72 without modification. kc89c72 datasheet

to send commands to the chip for partial capability demonstrations. KC89C72 FILFACT/SAMSUNG DIP-40 Other Components

For programming, the internal register map and control procedures described in this document apply directly to the KC89C72. : Parts should be kept in dry storage

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

A: Yes, in most cases. Both have identical pinouts and register sets. However, check the analog output impedance – the KC89C72 may require different external resistor values. However, software originally written for the AY-3-8910 will

: Configure the independent volumes (amplitude) of channels A, B, and C. Setting bit 4 to high routes the channel volume control to the internal Envelope Generator.

Programming the KC89C72 is done by writing to 16 internal registers via the 8-bit data bus. Below is the register memory mapping pattern outlined in the AY-3-8910 datasheet reference :

: Bus Control and Bus Direction signals used to manage data flow from a host CPU. DA0-DA7 : The 8-bit bidirectional data bus.

According to the metrics, the IC operates under the following electrical and environmental conditions: Specifications Technology CMOS (Low Power) Package Type 40-pin Dual In-line Package (DIP-40) Operating Temperature -40°C to +105°C Audio Channels 3 Independent Channels (A, B, C) Volume Resolution 4-bit per channel (16 Amplitude levels) General Purpose I/O Two 8-bit parallel ports (Port A and Port B) Pin Configuration (DIP-40)