[sdiy] NVRAM for TR606?

[brianw]

Do you have any data sheets or part numbers for NVRAM?

Last time I checked, they either have a battery built-in, or they require different code to work with SRAM interface timing. In other words, I don't think you can retrofit. If someone has a part number that would work, I'd like to know how it works.

The other solutions people are talking about use a new CPU design where the code can handle modern non-volatile memory.

Brian


On Mar 31, 2023, at 11:36 AM, antti.s.pitkamaki--- via Synth-diy <synth-diy at synth-diy.org> wrote:
> I hate leaky batteries. Does anybody know if there is an NVRAM solution for the Roland TR606? I don’t want to keep batteries in it, but it looses memory contents without them…
> 
> At least for pinball machines some have replaced the original volatile memory chips with NVRAM equivalents, but googling about a solution for the TR606 yields nothing.
> 
> Cheers,
> Antti