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This standard defines the specifications of interface parameters, signaling protocols, and features for DDR5 Serial Presence Detect EEPROM with Hub function (SPD5 Hub) and integrated Temperature Sensor (TS) as used for memory module applications. The Hub feature allows isolation of a local bus from a Controller host bus. The designation SPD5118 or generic term SPD5 Hub refers to the devices specified by this standard.

Committee(s): JC-40.1

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Version 1.31

This standard 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 8 Gb through 32 Gb 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, and LPDDR4 standards (JESD79, JESD79-2, JESD79-3, and JESD209-4).

Committee(s): JC-42, JC-42.3

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This standard defines the specifications of interface parameters, signaling protocols, and features for fifth generation Temperature Sensor (TS5) as used for memory module applications. These device operate on I2C and I3C two-wire serial bus interface. The designation TS521X and TS511X refers to the device specified by this document.

Committee(s): JC-40.1

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This standard defines the labels that shall be applied to all DDR5 memory modules to fully describe the key attributes of the module. The label can be in the form of a stick-on label, silk screened onto the assembly, or marked using an alternate customer-readable format. A readable point size should be used, and the number can be printed in one or more rows on the label. Hyphens may be dropped when lines are split, or when font changes sufficiently.

Committee(s): JC-45

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This annex JESD309-S0-RCB, DDR5 Small Outline Dual Inline Memory Module with 0-bit ECC (EC0 SODIMM) Raw Card B Annex" defines the design detail of x8, 2 Package Ranks DDR5 NECC SODIMM. The common feature of DDR5 SODIMM such as the connector pinout can be found in the JESD309, DDR5 Small Outline Dual Inline Memory Module (SODIMM) Common Standard.

Committee(s): JC-45.3

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This annex JESD309-S0-RCA, DDR5 Small Outline Dual Inline Memory Module (SODIMM) Raw Card A Annex defines the design detail of x8, 1 Package Rank DDR5 SODIMM. The common feature of DDR5 SODIMM such as the connector pinout can be found in the JESD309, DDR5 Small Outline Dual Inline Memory Module (SODIMM) Common Standard.

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This annex JESD309-S4-RCE, DDR5 Small Outline Dual Inline Memory Module with 4-bit ECC (EC4SODIMM) Raw Card E Annex" defines the design detail of x8, 2 Package Ranks DDR5 ECC SODIMM. The common feature of DDR5 SODIMM such as the connector pinout can be found in the JESD309, DDR5 Small Outline Dual Inline Memory Module (SODIMM) Common Standard.

Committee(s): JC-45, JC-45.3

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This document defines standard specifications of DC interface parameters, switching parameters, and test loading for definition of the DDR5 Clock Driver (CKD) for re-driving the DCK for CUDIMM, CSODIMM and CAMM applications. The DDR5CKD01 Device ID is DID = 0x0531. (5 = DDR5,
3= Clock Driver, 1= rev 01)

Committee(s): JC-40, JC-40.4

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This standard defines the electrical and mechanical requirements for 288-pin, 1.1 V (VDD), Clocked, Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR5 SDRAM CUDIMMs). These DDR5 Clocked Unbuffered DIMMs (CUDIMMs) are intended for use as main memory when installed in Computers.

Committee(s): JC-45, JC-45.3

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