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The AY-3-8912-AVR is a fully functional replacement (pin compatible - providing both programmable sound generator and I/O) 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 pullup 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

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

AY-3-8912-AVR Sound Chip replacement for AY8912