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Title Document # Date

Registration - 288 Pin DDR4 DIMM, 0.85 mm Pitch. DIMM

 MO-309F Mar 2015

Item No. 11.14-176

Committee(s): JC-11, JC-11.14

JEP95 Registrations Main Page

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Annex B, Raw Card B, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.B Dec 2020

This specification defines the electrical and mechanical requirements for Raw Card B, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2204.24.

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 25 		MODULE4.20.27 Aug 2015

Item 2204.07

This specification defines the electrical and mechanical requirements for 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs.

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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SPD Annex L: Serial Presence Detect (SPD) for DDR4 SDRAM Modules, Release 1

Release Number: 23 		SPD4.1.2.L-1 Nov 2013

This annex describes the serial presence detect (SPD) values for all DDR4 modules covered in Document Release 1. 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 2220.01

Committee(s): JC-45

JESD21-C Solid State Memory Documents Main Page

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SPD Annex L: Serial Presence Detect (SPD) for DDR4 SDRAM Modules, Release 2

Release Number: 23A 		SPD4.1.2.L-2 Jan 2014

This annex describes the serial presence detect (SPD) values for all DDR4 modules covered in Document Release 2. 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’. (This release is editorial changes only).

Committee(s): JC-45

JESD21-C Solid State Memory Documents Main Page

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Annex J, Raw Card J, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 26 		MODULE4.20.28.J Feb 2016

Item 2241.16
This specification defines the electrical and mechanical requirements for Raw Card J, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs.

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex A, R/C A, in 260-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM SODIMM Design Specification

Release Number: 28 		MODULE4.20.25.A Nov 2018

This document defines the electrical and mechanical requirements for Raw Card A, 260-pin, 1.2 Volt (VDD), Small Outline, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM SODIMMs). These DDR4 SODIMMs are intended for use as main memory when installed in PCs, laptops, and other systems. Item 2228.63.

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex C, R/C C, in 260-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM SODIMM Design Specification

Release Number: 30 		MODULE4.20.25.C May 2020

This annex defines the electrical and mechanical requirements for Raw Card C, 260-pin, 1.2 Volt (VDD), Small Outline, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM SODIMMs). These DDR4 SODIMMs are intended for use as main memory when installed in PCs, laptops, and other systems. Item 2228.31B

Committee(s): JC-45.3

JESD21-C Solid State Memory Documents Main Page

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Annex E, R/C E, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.E Aug 2020

This specification defines the electrical and mechanical requirements for Raw Card E, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Committee Item 2149.34a

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex D, Raw Card D, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 30 		MODULE4.20.28.D Aug 2020

This specification defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Item 2149.08c

Committee(s): JC-45, JC-45.1

JESD21-C Solid State Memory Documents Main Page

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288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 29 		MODULE4.20.28 May 2019

This specification defines the electrical and mechanical requirements for 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs. Item 2149.05E

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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Annex G, R/C G, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Registered DIMM Design Specification

Release Number: 25 		MODULE4.20.28.G Jun 2015

Item 2241.06B

This specification defines the electrical and mechanical requirements for Raw Card G, 288-pin, 1.2 Volt (VDD), Registered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM RDIMMs). These DDR4 Registered DIMMs (RDIMMs) are intended for use as main memory when installed in PCs.

Committee(s): JC-45.1

JESD21-C Solid State Memory Documents Main Page

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DDR4 REGISTERING CLOCK DRIVER (DDR4RCD02)

 JESD82-31A.01 Jan 2023

Terminology update.

This document defines standard specifications of DC interface parameters, switching parameters, and test loading for definition of the DDR4 Registering Clock Driver (RCD) with parity for driving address and control nets on DDR4 RDIMM and LRDIMM applications.

Patents(): A complete list of Assurance/Disclosure Forms is available to JEDEC members in the Members Area. Non-members can obtain individual Assurance/Disclosure Forms on request from the JEDEC office.

Committee(s): JC-40.4

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Addendum No. 1 to JESD79-4, 3D STACKED DRAM

JESD79-4-1B Feb 2021

This document defines the 3DS DDR4 SDRAM specification, 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 compliant 8 Gbit through 128 Gbit for x4, x8 3DS DDR4 SDRAM devices. This addendum was created based on the JESD79-4 DDR4 SDRAM specification. Each aspect of the changes for 3DS DDR4 SDRAM operation was considered. Item 1727.58G

Committee(s): JC-42.3C

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Annex D, R/C D, in 288-Pin, 1.2 V (VDD), PC4-1600/PC4-1866/PC4-2133/PC4-2400/PC4-2666/PC4-3200 DDR4 SDRAM Load Reduced DIMM Design Specification

Release Number: 30 		MODULE4.20.27.D Dec 2020

This specification defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2204.23

Committee(s): JC-45.4

JESD21-C Solid State Memory Documents Main Page

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SPD Annex L: Serial Presence Detect (SPD) for DDR4 SDRAM Modules, Release 6

Release 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

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