AY-3-8912 functional equivalent IC

Description

The AY-3-8912 functional equivalent IC is a direct replacement (pin compatible – providing both programmable sound generator and IO) for the increasingly difficult to source AY-3-8912 sound chip.

Features include:

• 3 channels of tone + noise
• Bidirectional 8-bit input/output port with built-in pull-up resistors
• Support for clock frequencies from 1MHz to 2MHz
• Pin compatible with the AY-3-8912
• Designed for Sinclair Spectrum(128K/+2/2A/2B/+3) and Amstrad (CPC range) computers
• Output levels closely match the AY-3-8912
• Frequency response equivalent to the AY-3-8912

Check out the audio sample to hear how the AY-3-8912 functional equivalent IC sounds!

Also, available for the Sinclair Spectrum(128K/+2/2A/2B/+3) range of computers is a Turbo-Sound version (the AY-3-8912A-TS) which provides 6 channels of tone + 2 channels of noise.  This is simply installed as a replacement for the existing AY-3-8912 and is compatible with software designed for a single PSG as well as programs that provide Turbo Sound audio.

Note: installation will require the removal of the existing AY-3-8912 (a socket for the replacement is recommended).