Examples The most used (canonical example) was the AY 3 8910 from General Instrument (or its derivatives AY 3 8912 AY 3 8913), the SN76489 from Texas Instruments and the Yamaha YM2149, a AY 3 8910 made under license.

Meanwhile, Meltem Ay from London tweeted

The AY chip has been used by a number of groups, such as the AY Riders (see external link below).

The AY 3 8930, also known as AY8930, is an enhanced but mostly backwards compatible version of the AY 3 8910.

Otherwise it is exactly the same as the AY 3 8910.

Some programs have been created specifically for writing AY chip music, such as Vortex Tracker.

The AY 3 8914 has the same pinout and is in the same 40 pin package as the AY 3 8910, except the control registers on the chip are shuffled around, and the 'expected input' on the A9 pin may be different.

The AY 3 8913 is the same chip in a 24 pin package, with both parallel ports not connected.

The Yamaha YM2149F 'SSG' chip has the same pinout as the AY 3 8910, with the minor difference that pin 26 could halve the master clock if pulled low.

The function of the BC2 pin is changed (it is ignored and assumed to be 0 regardless of the pin state), otherwise the pinout is the same as the AY 3 8910.