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This publication describes the serial presence detect (SPD) values for all LPDDR5/5X 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 use by the system's BIOS in order to properly initialize and optimize the system memory channels. The storage capacity of the SPD non-volatile memory is limited, so a number of techniques are employed to optimize the use of these bytes, including overlays and run length limited coding.

Committee(s): JC-45

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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 use by the system's BIOS in order to properly initialize and optimize the system memory channels.

Committee(s): JC-45

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This document defines the Graphics Double Data Rate 6 (GDDR6) Synchronous Graphics Random Access Memory (SGRAM) specification, including features, functionality, package, and pin assignments. The purpose of this Standard is to define the minimum set of requirements for 8 Gb through 16 Gb x16 dual channel GDDR6 SGRAM devices. System designs based on the required aspects of this standard will be supported by all GDDR6 SGRAM vendors providing compatible devices. Some aspects of the GDDR6 standard such as AC timings and capacitance values were not standardized. Some features are optional and therefore may vary among vendors. In all cases, vendor data sheets should be consulted for specifics. This document was created based on some aspects of the GDDR5 Standard (JESD212).

Committee(s): JC-42.3C

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Terminology update.  

This standard defines the Graphics Double Data This standard defines the GDDR5X SGRAM memory standard, including features, device operation, electrical characteristics, timings, signal pin assignments, and package

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

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This document replaces all past versions, however JESD220E, January 2020 (V 3.1), is available for reference only. This standard specifies the characteristics of the UFS electrical interface and the memory device. Such characteristics include (among others) low power consumption, high data throughput, low electromagnetic interference and optimization for mass memory subsystem efficiency. The UFS electrical interface is based on an advanced differential interface by MIPI M-PHY specification which together with the MIPI UniPro specification forms the interconnect of the UFS interface.

Committee(s): JC-64.1

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The purpose of this standard is definition of a UFS Universal Flash Storage electrical interface and a UFS memory device. This standard defines a unique UFS feature set and includes the feature set of eMMC standard as a subset. This standard replaces JESD220C, UFS 2.1, and introduces a feature called WriteBooster.  Item 138.88.

Committee(s): JC-64.1

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This document provides a comprehensive definition of the e•MMC Electrical Interface, its environment, and handling. It also provides design guidelines and defines a tool box of macro functions and algorithms intended to reduce design-in overhead. The purpose of this standard is the definition of the e•MMC Electrical Interface, its environment and handling. It provides guidelines for systems designers. Item 67.14.

This document replaces all past versions, however links to the replaced versions are provided here for reference only: JESD84-B51, February 2015; JESD84-B50.1, July 2014 (Editorial revision of JESD84-B50); JESD84-B50, September 2013 (Revision of JESD84-B451); JESD84-B451, June 2012 (Revision of JESD84-B45, June 2011)

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Committee(s): JC-64

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This document has been superseded by JESD223E, however it is available for reference only.

Committee(s): JC-64.1

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This document has been superseded by JESD220C-2.2, August 2020, and is provided here for reference purposes only.

This standard specifies the characteristics of the UFS electrical interface and the memory device. Such characteristics include (among others) low power consumption, high data throughput, low electromagnetic interference and optimization for mass memory subsystem efficiency. The UFS electrical interface is based on an advanced differential interface by MIPI M-PHY specification which together with the MIPI UniPro specification forms the interconnect of the UFS interface. The architectural model is referencing the INCITS T10 (SCSI) SAM standard and the command protocol is based on INCITS T10 (SCSI) SPC and SBC standards. Item 133.00B

Committee(s): JC-64.1

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