General Instrument AY-3-8910
Description
The AY-3-8910 is a 3-voice programmable sound generator (PSG) designed by General Instrument in 1978. The original chip that has been used to define a part of the MSX specification. The chip with the same identifier plus the letter A at the end has exactly the same characteristics except that it has better compatibility with external chips. Power consumption is 425mW max.
List of fully compatible chips
This is the list of chips that can replace the AY-3-8910.
- File KC89C72 (used in an Arabic MSX)
- JFC 95101 (not used in MSXs)
- Microchip Technology AY-3-8910A (Microchip Technology is the old semiconductor division of General Instrument)
- Microchip Technology AY8930 (w/ extended features) (not used in MSXs, used in Darky sound cartridge)
- OKI M5255 (not used in MSXs)
- OY-2-8910AC (used in an Arabic MSX)
- Toshiba T7766A (often used in MSXs, either as a separate chip or embedded in the MSX-ENGINE chip)
- WB5300 (rare, not used in MSXs)
- Winbond WF19054 (rarely used in MSXs)
- Yamaha YM2149 (often used in MSXs, either as a separate chip or embedded in the MSX-SYSTEM chip)
- Yamaha YM3439 (not used in MSXs)
Note: The Yamaha YM2149 is called SSG (Software-controlled Sound Generator).