DDR4 SDRAM Unbuffered DIMM Design Specification JEDEC DDR4 UDIMM设计规范标准文档。

1、收集的大量各种品牌内存SPD文件，包括DDR2/3/4和其它的 2、 内存SPD修改工具,SPD刷写打包,内含刷写工具和多种SPD 3、JEDEC Standard DDR4 SPD Document Release 4 UDIMM/RDIMM/LRDIMM/NVDIMM-N 4、JEDEC Standard DDR4 JESD79-4B 5、JEDEC Standard 04.20.28 - 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-2933/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification 6、Samsung16G1GX8PC4-2666.bin

x16 only_8G_C_DDR4_Samsung_Spec_Rev1.5_Apr.17.pdf DDR4_Product_guide_May.18.pdf 8G_C_DDR4_Samsung_Spec_Rev1.31_Apr.17.pdf 三星内存相关资料，设计标准，颗粒规格等资料

可改DDR4

RK3399支持ddr的列表

This annex describes the serial presence detect (SPD) values for all DDR4 modules. The SPD data provides critical information about all modules on the memory channel and is intended to be use by the system's BIOS in order to properly initialize and optimize the system memory channels. The storage capacity of the SPD EEPROMs is limited, so a number of techniques are employed to optimize the use of these bytes, including overlays and run length limited coding. All unused entries will be coded as 0

JESD79-4Cz最新标准。本文档定义了 DDR4 SDRAM 规范，包括特性、功能、交流和直流特性、封装和球/信号分配。本标准的目的是为 x4、x8 和 x16 DDR4 SDRAM 设备定义符合 JEDEC 的 2 Gb 到 16 Gb 的最低要求。该标准是根据 DDR3 标准 (JESD79-3) 以及 DDR 和 DDR2 标准 (JESD79、JESD79-2) 的某些方面创建的。

JEDEC 收费，标准文档不好找，供大家参考下载 This document defines the DDR4 SDRAM specification, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments.

DDR4 规范 revB

Xilinx pg150-ultrascale-memory-ip官方文档，可参考DDR3，DDR4得相关设计说明及时序，有助于对DDR得理解。