Replacement for M48Z128-85PM1

SandersF · ‎2025-12-12

Dear

Like my subject says, I am looking for a replacement part for M48Z128-85PM1 as this is now obsolete.

Thank you for helping me.

kind regards

Sanders

Peter BENSCH · ‎2025-12-12

Welcome @SandersF, to the community!

The device in question was a battery-buffered SRAM with a voltage of 5V, which has been obsoleted and uncommon for decades. I'm afraid you won't be able to find a replacement anywhere, and only a manually manufactured drop-in will help.

Sorry not being able to help you in this case.

Regards
/Peter

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mƎALLEm · ‎2025-12-12

As said by @Peter BENSCH there is no replacement for that device but look at these links if you have a battery issue:

May be you need to try that workaround.

Look at the images here.

Youtube video.

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