Other projects • Re: Pi 5 16GB SDRAM test

I bought a Pi 5 4GB and removed the 4GB samsung SDRAM chip and installed a Micron 16GB (MT53E4G32D8GS) SDRAM chip.

That appears to be a LPDDR4 part so which means it needs a higher I/O voltage than the stock LPDDR4X part. I don't know what will happen if you use a lower I/O voltage with it.

I have the datasheet but can't post it here due confidentially clauses, but this family of Micron ram chips are LPDDR4x with a backward compatibility setting to operate in LPDDR4 specifications. "mobile low-power DDR4 SDRAM with low VDDQ (LPDDR4X) is a high-speed, CMOS dynamic random-access memory device. This device is internally configured with 2 channels or 1 channel ×16 I/O, each channel having 8-banks" "As for LPDDR4 setting, refer to General LPDDR4 Specification at the end of this data sheet."

Statistics: Posted by CozmoDan — Mon Jun 10, 2024 10:24 pm

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