[sdiy] Roland M-16C Memory Cartridge

Colin f colin at colinfraser.com
Mon Dec 2 23:08:48 CET 2013


 
> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl 
> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of 
> Ullrich Peter
> Sent: 02 December 2013 15:41
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Roland M-16C Memory Cartridge
> 
> The FRAMs are very nice and you don't need a battery for 
> nonvolatile data storage and you have nearly unlimited write cycles.
> But some differences exist... So if you want to design with 
> this chip please read the chapter about the differences to 
> SRAMs carefully.
> => "F-RAM Design Considerations"
> Some measurements with a SRAMs cartridge might be necessary 
> to check if the usage of the FRAM is possible.
> 
> IT IS NOT A ONE BY ONE REPLACEMENT!

Seconded.
I put a FRAM in a TR909. It needed the ALE line grafted into the address
decoding to validate every RAM access.

Cheers,
Colin f





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