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AM3352: use DDR3 h5tq4g63efr

Part Number: AM3352

Our customers have been using am3352 for many years. The DDR3 used before is k4b4g1646b. The k4b4g1646b cannot be purchased. The customer uses h5tq4g63efr-rdc. They are P2P compatible and use the PCB of the old product. At present, the customer has made two prototype products for testing. Initially, the product can work without any problems, but it has only been tested for a week. However, the current product is about to be produced and delivered to the end customer. The test is not comprehensive, and there is not enough time to do a comprehensive test. Are there any successful cases of other customers using am3352 with h5tq4g63efr? What should we pay attention to when changing this scheme? We have provided the schematic diagram and h5tq4g63efr manual. Can you help check whether the schematic diagram is correct?

2021-E12-AM3352.Sch.pdfH5TQ4G63EFR-RDC.pdf

  • If the new DDR is a compatible speed grade and has JEDEC compatible timings, with the same architecture (density, number of dies, etc), then it should work fine on the old PCB.  You would have to check with the memory vendor to compare the two.  We have had many customers needing to change DDR vendors without an issue.  I don't recall any specifically moving from Samsung to Hynix, but it has been done.

    Regards,

    James