https://blog.wongcw.com/2022/10/06/%e4%b8%89%e6%98%9f%e8%ab%87%e8%ab%96%e4%b8%8b%e4%b8%80%e4%bb%a3dram%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%9agddr7%e3%80%81ddr5%e3%80%81lpddr5x%e5%92%8cv-nand/