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M48T59Y-70PC1

James Martin
Associate
Posted on May 22, 2018 at 12:43

Hi,

I'm restoring some old SUN computers and they have ST combined SRAM, battery and clock chips in them (M48T59Y-70PC1). I've found the datasheets for the chips, but the replacements chips that I have purchased are 

M48T59Y-70PC1U and M48T59Y-70PC1D. Though I can't find any explanation anywhere for what the D or U stands for. Does anyone know ?

Also, apologies if I have posted this in the wrong section.

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