AY38910A is a Programmable Sound Generator (PSG) DIP-40 Package. AY-3-8910A. Full Software Control of sound generation, interfaces to most 8-bit and 16-bit microprocessors, two 8-bit general purpose I/O ports. Don’t be fooled by people selling new versions of these chips because they are obsolete and they are all used or refurbished which ours are refurbished so there can be minor blemishes. Used on Bally XENON, VIKING pinball machines and many other arcade games. Replaces the following part numbers E-620-124, Taito 15-60006-001.