Global Standards for the Microelectronics Industry
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| Title | Document # |
Date |
|---|---|---|
DDR5 Serial Presence Detect (SPD) ContentsTerminology update Release Number: Version 1.1 |
JESD400-5A.01 | Jan 2023 |
This standard describes the serial presence detect (SPD) values for all DDR5 memory modules. In this context, “modules” applies to memory modules like traditional Dual In-line Memory Modules (DIMMs) or solder-down motherboard applications. The SPD data provides critical information about all modules on the memory channel and is intended to be used by the system's BIOS in order to properly initialize and optimize the system memory channels. Committee(s): JC-45 Free download. Registration or login required. |
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240-Pin PC3-6400/PC3-8500/PC3-10600/PC3-12800/PC3-14900/PC3-17000 DDR3 SDRAM Unbuffered DIMM Design Specification |
MODULE4.20.19 | May 2021 |
Release No. 31. Item 2131.03, 2078.04, 2131.06This revision contains terminology updates only. Committee(s): JC-45, JC-45.2, JC-45.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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240-Pin PC2-5300/PC2-6400 DDR2 SDRAM Unbuffered DIMM Design Specification |
MODULE4.20.13 | May 2021 |
Release 31. Item 2167.05This revision contains terminology updates only. Committee(s): JC-45, JC-45.2, JC-45.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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SPD Annex L: Serial Presence Detect (SPD) for DDR4 SDRAM Modules, Release 6Release Number: 30 |
SPD4.1.2.L-6 | Nov 2020 |
This annex describes the serial presence detect (SPD) values for all DDR4 modules covered in Document Release 6. Differences between module types are encapsulated in subsections of this annex. These presence detect values are those referenced in the SPD standard document for ‘Specific Features’. Item 2220.01H. Committee(s): JC-45 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Annex M: Serial Presence Detect (SPD) for LPDDR3 and LPDDR4 SDRAM Modules, Release 1Release Number: 25 |
SPD4.1.2.M-1 | Nov 2015 |
Committee Document Reference Title: LPDDR3 and LPDDR4 SPD Document Release 1 This Annex describes the serial presence detect (SPD) values for all LPDDR modules. Differences between module types are encapsulated in subsections of this annex. These presence detect values are those referenced in the SPD standard document for ‘Specific Features’. The following SPD fields will be documented in the order presented in Section 2, with the exception of bytes 128~255 which are documented in separate sections, one for each family of module types. Further description of Byte 2 is found in Annex A of the SPD standard. Item 2254.01 Committee(s): JC-45 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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