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Title	Document #	Date
DDR5 SDRAM Release Number: Version 1.2	JESD79-5B	Aug 2022
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). Item 1848.99M. Committee(s): JC-42.3B Available for purchase: $369.00 Add to Cart To help cover the costs of producing standards, JEDEC is now charging for non-member access to selected standards and design files. Most of the content on this site remains free to download with registration. Paying JEDEC member companies enjoy free access to all content. Learn more and apply today. Paying JEDEC Members may login for free access.
SERIAL FLASH DISCOVERABLE PARAMETERS (SFDP) This document replaces JESD216F.01, Editorial changes to this document were approved by the TG, June 2022	JESD216F.02	Jun 2022
The Serial Flash Discoverable Parameter (SFDP) standard provides a consistent method of describing the functional and feature capabilities of serial flash devices in a standard set of internal parameter tables. These parameter tables can be interrogated by host system software to enable adjustments needed to accommodate divergent features from multiple vendors. Any company may request a Function Specific ID by making a request to the JEDEC office at juliec@jedec.org. Please include “Function Specific ID Request, JESD216” in the email subject line. Item 1775.73. Editorial changes listed in Annex, from original publication of JESD216F (December 2021). Committee(s): JC-42.4 Free download. Registration or login required.
EXPANDED SERIAL PERIPHERAL INTERFACE (xSPI) FOR NONVOLATILE MEMORY DEVICES	JESD251C	May 2022
This standard specifies the eXpanded Serial Peripheral Interface (xSPI) for Non Volatile Memory Devices, which provides high data throughput, low signal count, and limited backward compatibility with legacy Serial Peripheral Interface (SPI) devices. It is primarily for use in computing, automotive, Internet Of Things (IOT), embedded systems and mobile systems, between host processing and peripheral devices. The xSPI electrical interface can deliver up to 400 MBytes per second raw data throughput. Item 1775.74. Committee(s): JC-42.4 Free download. Registration or login required.
TEMPERATURE RANGE AND MEASUREMENTS FOR COMPONENTS AND MODULES	JESD402-1A	Mar 2022
This document specifies standard temperature ranges that may be used, by way of referencing JESD402-1, in other standards, specifications, and datasheets when defining temperature related specifications. Items 1855.13, 1855.16, 1855.22, and 1855.24 Committee(s): JC-42 Free download. Registration or login required.
High Bandwidth Memory DRAM (HBM3)	JESD238	Jan 2022
The HBM3 DRAM is tightly coupled to the host compute die with a distributed interface. The interface is divided into independent channels. Each channel is completely independent of one another. Channels are not necessarily synchronous to each other. The HBM3 DRAM uses a wide-interface architecture to achieve high-speed, low power operation. Each channel interface maintains a 64 bit data bus operating at double data rate (DDR). Item 1837.98. Committee(s): JC-42.2 Free download. Registration or login required.
NAND FLASH INTERFACE INTEROPERABILITY	JESD230E	Oct 2021
This document defines a standard NAND flash device interface interoperability standard that provides means for a system to be designed that can support Asynchronous SDR, Synchronous DDR and Toggle DDR NAND flash devices that are interoperable between JEDEC and ONFI member implementations. This standard was jointly developed by JEDEC and the Open NAND Flash Interface Workgroup, hereafter referred to as ONFI. Item 1767.57 Committee(s): JC-42.4 Free download. Registration or login required.
Addendum No. 1 to JESD251 - OPTIONAL x4 QUAD I/O WITH DATA STROBE	JESD251-1.01	Sep 2021
This purpose of the addendum is to add an optional 4-bit bus width (x4) to JESD251, xSPI standard. The xSPI interface currently supports a x1 interface that acts as a bridge to legacy SPI functionality as well as the x8 interface intended to achieve dramatically higher bus performance than legacy SPI memory implementations. Item 1775.15. This is an editorial revision to JESD251-1, October 2018 Committee(s): JC-42.4 Free download. Registration or login required.
DDR4 SDRAM STANDARD	JESD79-4D	Jul 2021
This document defines the DDR4 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 2 Gb through 16 Gb for x4, x8, and x16 DDR4 SDRAM devices. This standard was created based on the DDR3 standard (JESD79-3) and some aspects of the DDR and DDR2 standards (JESD79, JESD79-2). Committee Item 1716.78H Committee(s): JC-42.3C Available for purchase: $284.00 Add to Cart Paying JEDEC Members may login for free access.
LOW POWER DOUBLE DATA RATE 5 (LPDDR5)	JESD209-5B	Jun 2021
This document defines the LPDDR5 standard, 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 JEDEC compliant x16 one channel SDRAM device and x8 one channel SDRAM device. LPDDR5 device density ranges from 2 Gb through 32 Gb. This document was created using aspects of the following standards: DDR2 (JESD79-2), DDR3 (JESD79-3), DDR4 (JESD79-4), LPDDR (JESD209), LPDDR2 (JESD209-2), LPDDR3 (JESD209-3) and LPDDR4 (JESD209-4). Item 1854.99B. Committee(s): JC-42, JC-42.6 Available for purchase: $400.00 Add to Cart Paying JEDEC Members may login for free access.
LOW POWER DOUBLE DATA RATE 4 (LPDDR4)	JESD209-4D	Jun 2021
This document defines the LPDDR4 standard, 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 a JEDEC compliant 16 bit per channel SDRAM device with either one or two channels. LPDDR4 dual channel device density ranges from 4 Gb through 32 Gb and single channel density ranges from 2 Gb through 16 Gb. This document was created using aspects of the following standards: DDR2 (JESD79-2), DDR3 (JESD79-3), DDR4 (JESD79-4), LPDDR (JESD209), LPDDR2 (JESD209-2) and LPDDR3 (JESD209-3). Committee Item: 1824.42D Committee(s): JC-42.6 Available for purchase: $327.00 Add to Cart Paying JEDEC Members may login for free access.
REPLAY PROTECTED MONOTONIC COUNTER (RPMC) FOR SERIAL FLASH DEVICES	JESD260	Apr 2021
This document provides the requirements for an additional block called as Replay Protection Monotonic Counter. (RPMC) Replay Protection provides a building block towards providing additional security. This block requires modifications in both a Serial Flash device and Serial Flash Controller. The standard defines new commands for Replay Protected Monotonic Counter operations. A device that supports RPMC can support these new commands as defined in this standard. Committee(s): JC-42.4 Free download. Registration or login required.
SERIAL FLASH RESET SIGNALING PROTOCOL	JESD252.01	Apr 2021
This standard is intended for use by SoC, ASIC, ASSP, and FPGA developers or vendors interested in incorporating a signaling protocol for hardware resetting the Serial Flash device. In is also intended for use by peripheral developers or vendors interested in providing Serial Flash devices compliant with the standard. This standard defines a signaling protocol that allows the host to reset the slaved Serial Flash device without a dedicated hardware reset pin. Item 1775.06. Committee(s): JC-42.4 Free download. Registration or login required.
HIGH BANDWIDTH MEMORY (HBM) DRAM	JESD235D	Mar 2021
The HBM DRAM is tightly coupled to the host compute die with a distributed interface. The interface is divided into independent channels. Each channel is completely independent of one another. Channels are not necessarily synchronous to each other. The HBM DRAM uses a wide-interface architecture to achieve high-speed, low-power operation. The HBM DRAM uses differential clock CK_t/CK_c. Commands are registered at the rising edge of CK_t, CK_c. Each channel interface maintains a 128b data bus operating at DDR data rates. Also available for designer ease of use is HBM Ballout Spreadsheet (Note this version is the latest version for use with JESD235D). Committee item 1797.99L. Committee(s): JC-42.3C Available for purchase: $247.00 Add to Cart Paying JEDEC Members may login for free access.
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 Free download. Registration or login required.
ADDENDUM No. 1 to JESD209-4, LOW POWER DOUBLE DATA RATE 4X (LPDDR4X)	JESD209-4-1A	Feb 2021
This addendum defines LPDDR4X specifications that supersede the LPDDR4 Standard (JESD209-4) to enable low VDDQ operation of LPDDR4X devices to reduce power consumption. Item 1831.55A. Committee(s): JC-42.6 Available for purchase: $106.00 Add to Cart Paying JEDEC Members may login for free access.
GRAPHICS DOUBLE DATA RATE 6 (GDDR6) SGRAM STANDARD	JESD250C	Feb 2021
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 Specification 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). Item 1836.99E. Committee(s): JC-42.3C Free download. Registration or login required.
DDRx SPREAD SPECTRUM CLOCKING (SSC) STANDARD	JESD404-1	Nov 2020
Definition for all DDRx component documents to reference. This is generic to any DDRxtechnology. Item 1842.34 Committee(s): JC-42.3C Free download. Registration or login required.
LOW POWER DOUBLE DATA RATE (LPDDR5) Status: Superseded July 2021	JESD209-5A	Jan 2020
This document has been replaced by JESD209-5B, however remains on the JEDEC Website for reference use only. . Item 1854.99A Committee(s): JC-42.6 Available for purchase: $369.00 Add to Cart Paying JEDEC Members may login for free access.
LOW POWER DOUBLE DATA RATE 5 (LPDDR5) Status: Superseded JESD209-5A, January 2020	JESD209-5	Feb 2019
This document has been replaced by JESD209-5A, however remains on the JEDEC Website for reference use only. Committee(s): JC-42.6 Available for purchase: $355.00 Add to Cart Paying JEDEC Members may login for free access.
GRAPHICS DOUBLE DATA RATE (GDDR5X) SGRAM STANDARD	JESD232A	Aug 2016
The purpose of this standard is to define the minimum set of requirements for JEDEC standard compatible 4 Gb through 16 Gb x32 GDDR5X SGRAM devices. System designs based on the required aspects of this standard will be supported by all GDDR5X SGRAM vendors providing JEDEC standard compatible devices. Some aspects of the GDDR5X standard such as AC timings were not standardized. Some features are optional and therefore may vary among vendors. In all cases, vendor data sheets should be consulted for specifics. Item 1827.99C Committee(s): JC-42.3, JC-42.3C Free download. Registration or login required.

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