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December 12, 2025
Solved

Replacement for M48Z128-85PM1

  • December 12, 2025
  • 4 replies
  • 344 views

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

Best answer by mƎALLEm

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.

4 replies

Peter BENSCH
Technical Moderator
December 12, 2025

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

mƎALLEm
mƎALLEmBest answer
Technical Moderator
December 12, 2025

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.

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
SandersFAuthor
Associate
December 13, 2025

Thank you for your replies. I have ordered the small plate and will try to fix it like that. 

Fingers crossed. 

 

kind regards

December 13, 2025

Yes, you can find the relevant documents at (www).(ace)(icc).(com), and contact them to request an EOL document and inquire about suitable alternative recommendations.