DDR5的JEDEC规范， 供参考。This document defines the DDR5 SDRAM specification, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments. The purpose of this Standard is to define the minimum set of requirements for JEDEC compliant 8Gb through 32Gb for x4, x8, and x16 DDR5 SDRAM devices. This standard was created based on the DDR4 standards (JESD79-4) and some aspects of the DDR, DDR2, DDR3 & LPDDR4 standards (JESD79, JESD79-2, JESD79-3 & JESD209-4). Item 1848.99G.

Jedec LPDDR5 spec This document defines the LPDDR5 standard, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments. The purpose of this specification is to define the minimum set of requirements for a JEDEC compliant x16 one channel SDRAM device and x8 one channel SDRAM device.

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JEDEC下载的emmc5.1协议规范，需要了解emmc5.1规范的下载吧。

DDR3 JEDEC 官方标准文档 DDR3 JEDEC 官方标准文档 DDR3 JEDEC 官方标准文档

LPDDR5的JEDEC标准和一些自己做的笔记，相关的感兴趣的同事应该能能够知道该资源

主要是LPDDR4的JEDEC标准和相关理解的地方都在PDF中做了备注，给有需要的小伙伴们

EMMC 5.1 jedec spec