Global Standards for the Microelectronics Industry
Standards & Documents Search
Title | Document # | Date |
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DDR2 SPD INTERPRETATION OF TEMPERATURE RANGE AND (SELF-) REFRESH OPERATION |
JEP179 | Jun 2006 |
The purpose of this document is to explain the meaning of SPD setting (JESD21 SPD section) for DDR2 SDRAM (JESD79-2) in normal and extended temperature operationy67. Committee(s): JC-42.3 Free download. Registration or login required. |
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DDR2 Specific SDRAM Function |
SDRAM3.11.5.5 | Jul 2008 |
Release No. 18 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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DDR3 SDRAM STANDARD |
JESD79-3F | Jul 2012 |
This document defines the DDR3 SDRAM 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 JEDEC compliant 512 Mb through 8 Gb for x4, x8, and x16 DDR3 SDRAM devices. This document was created based on the DDR2 standard (JESD79-2) and some aspects of the DDR standard (JESD79). Each aspect of the changes for DDR3 SDRAM operation were considered and approved by committee ballots). The accumulation of these ballots were then incorporated to prepare this standard (JESD79-3), replacing whole sections and incorporating the changes into Functional Description and Operation. Item 1627.14 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-42.3 Available for purchase: $247.00 Add to Cart Paying JEDEC Members may login for free access. |
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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. |
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DDR5 SDRAMRelease Number: Version 1.31 |
JESD79-5C.01 | Jul 2024 |
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). Available for purchase: $423.00 Add to Cart Paying JEDEC Members may login for free access. |
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DDRx SPREAD SPECTRUM CLOCKING (SSC) STANDARD |
JESD404-1 | Nov 2020 |
Definition for all DDRx component documents to reference. This is generic to any DDRx Committee(s): JC-42.3C Free download. Registration or login required. |
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Definition of the EE1002 and EE1002A Serial Presence Detect (SPD) EEPROMs |
SPD4.1.3-01 | May 2022 |
Release No. 19.01. Item 1739.02E, Terminology update. This standard defines the specifications of interface parameters, signaling protocols, and features for Serial Presence Detect (SPD) EEPROMs as used for memory module applications. JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Definition of the TSE2002av Serial Presence Detect (SPD) EEPROM with Temperature Sensor (TS) for Memory Module Applications |
SPD4.1.4-01 | May 2022 |
Release No. 21.01, Terminology update. This standard defines the specifications of interface parameters, signaling protocols, and features for Serial Presence Detect (SPD) EEPROMs and Temperature Sensor (TS) as used for memory module applications. The designation TSE2002av refers to the family of devices specified by this document. Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Definitions of the EE1004-v 4 Kbit Serial Presence Detect (SPD) EEPROM and TSE2004av 4 Kbit SPD EEPROM with Temperature Sensor (TS) for Memory Module Applications |
SPD4.1.6-01 | May 2022 |
Release 26.01, Terminology update This standard defines the specifications of interface parameters, signaling protocols, and features for Serial Presence Detect (SPD) EEPROM (EE) and Temperature Sensor (TS) as used for memory module applications. Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Device Specification Annex for JESD21-C |
SDRAM3.2 | Apr 2003 |
Release No.12 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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DIMM Design Files |
DIMM Homepage | Dec 2003 |
These reference files are registered as industry accepted examples for use by manufacturers. Please be sure to read the license agreement prior to downloading files. Design Files (Gerber Files) have been developed in accordance with the JEDEC Manual of Operation and Procedure. |
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DOUBLE DATA RATE (DDR) SDRAM STANDARD |
JESD79F | Feb 2008 |
This comprehensive standard defines all required aspects of 64Mb through 1Gb DDR SDRAMs with X4/X8/X16 data interfaces, including features, functionality, ac and dc parametrics, packages and pin assignments. This scope will subsequently be expanded to formally apply to x32 devices, and higher density devices as well The purpose of this Standard is to define the minimum set of requirements for JEDEC compliant 64Mb through 1Gb, X4/X8/X16 DDR SDRAMs. System designs based on the required aspects of this specification will be supported by all DDR SDRAM vendors providing JEDEC compliant devices. Committee(s): JC-42.3 Free download. Registration or login required. |
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Double Word Wide MOS SRAM |
SRAM3.7.8 | Apr 2007 |
Release No. 16. Item 1541.03 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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DRAM Operational Features |
DRAM3.9.5 | Feb 2000 |
Release No.9 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Dual Inline Memory Modules (DIMMs) Table of Contents |
MODULE4.20.TOC | Dec 2014 |
Release No. 24 Committee(s): JC-42.2, JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Dynamic Random Access Memory (DRAM) Table of Contents |
DRAM3.9.TOC | Jul 1997 |
Release No. 9 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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EEPROM Extended Features |
EEPROM3.5.3 | Jan 2005 |
Release No.14 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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EEPROM, Word Wide |
EEPROM3.5.2 | Jun 2007 |
Release No. 16. Item 1704.1 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Eight Byte Wide (X64/72) MOS SRAM |
SRAM3.7.9 | Jun 2007 |
Release No. 16A. Item 1480.05 and 1531.04 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Enhanced SDRAM (ESDRAM) Specific SDRAM Functions |
SDRAM3.11.5.3 | Jun 1999 |
Release No. 9 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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EPROM Introduction |
EPROM3.4 | Jul 1997 |
Release No.9 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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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. |
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Four Byte Modules and Cards Table of Contents |
MODULE4.4.TOC | Jun 1997 |
Release No. 9 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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GDDR2 Specific SGRAM Functions |
SDRAM3.11.5.6 | May 2005 |
Release No. 13 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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GDDR3 Specific SGRAM Functions |
SDRAM3.11.5.7 | May 2005 |
Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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GDDR5 MEASUREMENT PROCEDURES |
JEP171 | Aug 2014 |
This publication is to inform all industry participants of a unified procedure to enable consistent measurement across the industry. This document contains the measurement procedures for testing GDDR5. Committee(s): JC-42.3 Free download. Registration or login required. |
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General SDRAM Functions |
SDRAM3.11.5.1 | Jun 2002 |
Release No. 12 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Graphics Double Data (GDDR4) SGRAM StandardRelease Number: 16 |
SDRAM3.11.5.8 R16.01 | Mar 2023 |
Item 1600.41, Terminology Update This document defines the Graphics Double Data Rate 4 (GDDR4) Synchronous Graphics Random Access Memory (SGRAM) standard, including features, functionality, package, and pin assignments. This scope may be expanded in future to also include other higher density devices. Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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GRAPHICS DOUBLE DATA RATE (GDDR5) SGRAM STANDARDRelease Number: C.01 - Terminology update |
JESD212C.01 | Jan 2023 |
Terminology update. 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-42.3C Free download. Registration or login required. |
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GRAPHICS DOUBLE DATA RATE (GDDR5X) SGRAM STANDARD |
JESD232A.01 | Mar 2023 |
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 Free download. Registration or login required. |
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Graphics Double Data Rate (GDDR6) SGRAM Standard |
JESD250D | May 2023 |
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 Free download. Registration or login required. |
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Graphics Double Data Rate 7 SGRAM Standard (GDDR7) |
JESD239A | Sep 2024 |
This standard defines the Graphics Double Data Rate 7 (GDDR7) Synchronous Graphics Random Access Memory (SGRAM) specification, including features, functionality, package, and pin assignments.
Free download. Registration or login required. |
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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. |
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HIGH BANDWIDTH MEMORY (HBM3) DRAM |
JESD238A | Jan 2023 |
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). 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. Free download. Registration or login required. |
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High Speed DDR SRAM in 165 BGA |
SRAM3.7.10 | Feb 2008 |
Release No. 17. Item 1755 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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JC-42.6 MANUFACTURER IDENTIFICATION (ID) CODE FOR LOW POWER MEMORIES |
JEP166E | Jul 2023 |
This document defines the JC-42.6 Manufacturer ID. This document covers Manufacturer ID Codes for the following technologies: LPDDR (JESD209), LPDDR2 (JESD209-2), LPDDR3 (JESD209-3), LPDDR4 (JESD209-4), Wide-IO (JESD229), and Wide-IO2 (JESD229-2). The purpose of this document is to define the Manufacturer ID for these devices. Item No. 1725.03C. See Annex for additions/changes. To make a request for an ID code: https://www.jedec.org/id-codes-low-power-memories Committee(s): JC-42.6 Free download. Registration or login required. |
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JESD21C, Section 6, Applicable other documents for JESD21C |
JESD21C.6 | Mar 2008 |
Release No. 17 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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LOW POWER DOUBLE DATA RATE (LPDDR) 5/5X |
JESD209-5C | Jul 2023 |
This document defines the LPDDR5/LPDDR5X 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/LPDDR5X 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). Available for purchase: $459.00 Add to Cart Paying JEDEC Members may login for free access. |
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Low Power Double Data Rate (LPDDR) Non-Volatile Memory (NVM) (Item 1674.17, 1674.16, 1674.20 |
NVRAM3.6.3 | Feb 2009 |
Release No. 18A JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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LOW POWER DOUBLE DATA RATE (LPDDR) SDRAM STANDARD |
JESD209B | Feb 2010 |
This standard defines the Low Power Double Data Rate (LPDDR) SDRAM, including features, functionality, AC and DC characteristics, packages, and pin assignments. This scope may be expanded in future to also include other higher density devices. The purpose of this document is to define the minimum set of requirements for JEDEC compliant 64Mb through 2Gb for x16 and x32 Low Power Double Data Rate SDRAM devices. System designs based on the required aspects of this standard will be supported by all LPDDR SDRAM vendors providing compliant devices. (JESD209 was originally numbered as JESD79-4 May 2006 to August 2007, corrected to JESD209 09/17/2007). Patents(): See Document Committee(s): JC-42.3, JC-42.6 Free download. Registration or login required. |
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LOW POWER DOUBLE DATA RATE (LPDDR5)Status: Superseded July 2021 |
JESD209-5A | Jan 2020 |
This document has been replaced by JESD209-5B. Item 1854.99A. Members of JC-42.6 may access a reference copy on the restricted members' website. Committee(s): JC-42.6 |
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LOW POWER DOUBLE DATA RATE 2 (LPDDR2) |
JESD209-2F | Jun 2013 |
This document defines the LPDDR2 specification, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments. This standard covers the following technologies: LPDDR2-S2A, LPDDR2-S2B, LPDDR2-S4A, LPDDR2-S4B, LPDDR2-N-A, and LPDDR2-N-B. The purpose of this standard is to define the minimum set of requirements for JEDEC compliant 64 Mb through 8 Gb for x8, x16, and x32 SDRAM devices as well as 64 Mb through 32 Gb for x8, x16, and x32 for NVM devices. Item 1725.01G. 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-42.6 Free download. Registration or login required. |
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LOW POWER DOUBLE DATA RATE 3 SDRAM (LPDDR3) |
JESD209-3C | Aug 2015 |
This document defines the LPDDR3 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 JEDEC compliant 4 Gb through 32 Gb for x16 and x32 SDRAM devices. This document was created using aspects of the following standards: DDR2 (JESD79-2), DDR3 (JESD79-3), LPDDR (JESD209), and LPDDR2 (JESD209-2). Committee Item no. 1798.11D. 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-42.6 Available for purchase: $208.00 Add to Cart Paying JEDEC Members may login for free access. |
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Low Power Double Data Rate 4 (LPDDR4) |
JESD209-4E | Jun 2024 |
This document defines the LPDDR4 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 16 bit per channel SDRAM device with either one or two channels. LPDDR4 dual channel device density ranges from 2 Gb through 32 Gb and single channel density ranges from 1 Gb through 16 Gb. Available for purchase: $374.00 Add to Cart Paying JEDEC Members may login for free access. |
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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. Members of JC-42.6 may access a reference copy on the restricted members' website. Committee(s): JC-42.6 |
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Low Power Double Data Rate Interface for Non-Volatile Memory (LPDDR4X-NVM) Standard |
JESD326-4 | Nov 2024 |
This standard defines the Low Power Double Data Rate interface for Non-Volatile Memory (LPDDR4XNVM) Standard. This standard describes 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 16 bit single channel LPDDR4X-NVM device. LPDDR4X-NVM density ranges from 128Mb through 32Gb. Free download. Registration or login required. |
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Memory Module Nomenclature |
SPD4.1.1 | Jun 1997 |
Release No.9 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Mobile Platform Memory Module Thermal Sensor Component Specification |
MODULE4.7 | May 2022 |
Release No. 16. This replaces Release 15 and includes the following editorial changes: 1) Replaced master/slave with controller/target 2) Checked for presence of other sensitive words 3) Added Tables and Figures in Table of Contents (Release 15, Item 1640.07) Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Module Introduction |
MODULE4 | Oct 2001 |
Release No. 11 Committee(s): JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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MPDRAM Optional Features |
MPDRAM3.10.4 | Jun 1997 |
Release No.9 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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NAND Flash Interface Interoperability |
JESD230G | Oct 2024 |
This standard was jointly developed by JEDEC and the Open NAND Flash Interface Workgroup, hereafter referred to as ONFI. This standard defines a standard NAND flash device interface interoperability standard that provides means for system be designed that can support Asynchronous SDR, Synchronous DDR and Toggle DDR NAND flash devices that are interoperable between JEDEC and ONFI member implementations. Free download. Registration or login required. |
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NEAR-TERM DRAM LEVEL ROWHAMMER MITIGATION |
JEP300-1 | Mar 2021 |
RAM process node transistor scaling for power and DRAM capacity has made DRAM cells more sensitive to disturbances or transient faults. This sensitivity becomes much worse if external stresses are applied in a meticulously manipulated sequence, such as Rowhammer. Rowhammer related papers have been written outside of JEDEC, but some assumptions used in those papers didn’t explain the problem very clearly or correctly, so the perception for this matter is not precisely understood within the industry. This publication defines the problem and recommends following mitigations to address such concerns across the DRAM industry or academia. Item 1866.01. Committee(s): JC-42 Free download. Registration or login required. |
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Nibble Wide DRAM |
DRAM3.9.2 | Jun 1999 |
Release No. 9 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Nibble Wide ECL SRAM |
SRAM3.7.4 | Dec 1994 |
Release No.04 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Nibble Wide MPDRAM |
MPDRAM3.10.1 | Jun 1997 |
Release No.9 Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Nibble Wide PROM |
PROM3.3.1 | Dec 1993 |
Release No.1 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Nibble Wide SDRAM |
SDRAM3.11.2 | Jan 2004 |
Release No.13 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Nibble Wide SRAM |
SRAM3.7.3 | Dec 1995 |
Release No.5 Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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NVRAM, Nonvolatile RAM |
NVRAM3.6 | Dec 1991 |
Release No.1 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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One Byte Modules |
MODULE4.2 | Jun 1997 |
Release No. 9 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |