[sdiy] TMS3631 Programmable Top Octave generator data sheet ??

[jpdesroc at oricom.ca]

I found my problem.

Thanks anyway.

 

De : Synth-diy <synth-diy-bounces at synth-diy.org> De la part de Jean-Pierre Desrochers via Synth-diy
Envoyé : 9 septembre 2025 11:37
À : synth-diy at synth-diy.org
Objet : [sdiy] TMS3631 Programmable Top Octave generator data sheet ??

 

Hi list,

 

I’m trying to find a datasheet for a TMS3631 Programmable Top Octave generator with no success..

These generators (2 of them) are used in an Elkavox 83 electronic accordion

To generate all the ‘flute type’ and organ notes.

 

There are two variants of the chip, generating different note footings. 

TMS3631-R1104 generates the octave pitches (2' 4' 8' 16') 

and 

TMS3631-R1105A the 1/3' ones (10'2/3 5'1/3 2'2/3 1'1/3).

 

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