Global Standards for the Microelectronics Industry
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Title | Document # | Date |
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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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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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CONFIGURATIONS FOR SOLID STATE MEMORIES:Status: Under RevisionSections in this document may be under revision at any time. |
JESD21-C | Jan 2003 |
This revision of JESD21 is substantially different from previous issues because it reflects advancement in semiconductor technology and computer design needs. A new class of memory devices, the multiport DRAM (MPDRAM) C also know as 'Video Ram' because of the most common application for the devices C is represented. A new family of SRAMs which addresses the increasing need for high speed is introduced. Additional families of devices in the SOJ and Zip packages are included. The material in this revision is organized primarily by function (ROM, EPROM, SRAM, DRAM, etc.) rather than by technology and word length. Pinouts for SIMM and DIMM are included along with presence detect schemes. A current set of terms has also been included. JESD21-C is a compilation of all memory device standards that have been developed by the JC-42 Committee and approved by the JEDEC BoD from September 1989 to present. This latest issue has changed to a loose-leaf format and comes in a three-ring binder so that new drawings can be added without requiring a new publication. Time of publication of the material is identified by release number, i.e., if marked Release 8, this item was approved and released in 1998, if marked Release 13, this item was approved and released in 2003. Committee(s): JC-42 |
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Byte Wide SRAM |
SRAM3.7.5 | Apr 2003 |
Release No.12 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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SPD Annex A, Table of Memory Types |
SPD4.1.2.1 | Apr 2003 |
Release No.12 Committee(s): JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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4.5 Table of Contents - Eight Byte Modules |
MODULE4.5 | Apr 2003 |
Release No.12 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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SPD Annex E, SDRAM |
SPD4.1.2.5 | May 2003 |
Release No. 12 Committee(s): JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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DDR Specific SDRAM Functions |
SDRAM3.11.5.2 | Jun 2003 |
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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COMMON FLASH INTERFACE (CFI): |
JESD68.01 | Sep 2003 |
The Common Flash Interface (CFI) specification outlines a device and host system software interrogation handshake that allows specific software algorithms to be used for entire families of devices. This allows device-independent, JEDEC ID-independent, and forward- and backward-compatible software support for the specific flash families. It allows flash vendors to standardize their existing interfaces for long-term compatibility. The changes for this minor revision are indicated in Annex A on page 11. Committee(s): JC-42.4 Free download. Registration or login required. |
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144 Pin, PC133 SDRAM Unbuffered SO-DIMM, Reference Design Specification |
MODULE4.20.3 | Oct 2003 |
Release No. 13 Committee(s): JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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168 Pin, PC-133 SDRAM Registered DIMM Design Specification |
MODULE4.20.2 | Oct 2003 |
Release No. 13 Committee(s): JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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200 Pin, PC-2700/PC-2100/PC-1600 Unbuffered SO-DIMM SDRAM Reference Design Specification |
MODULE4.20.6 | Oct 2003 |
Release No. 13 Committee(s): JC-42.5 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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Word Wide Graphics DRAM |
MPDRAM3.10.3 | 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 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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Byte Wide SDRAM |
SDRAM3.11.3 | Jan 2004 |
Release No.13 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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SPD Annex D, DDR Synchronous DRAM (DDR SDRAM) |
SPD4.1.2.4 | Jan 2004 |
Release No.13 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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ANNUAL UPDATING SERVICE: |
JESD21-C AUS | Jan 2004 |
The JEDEC Office has generated a mailing list for those who wish to subscribe to updates of this publication. A payment is required for subscription to this updating service. Committee(s): JC-42 |
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COMMON FLASH INTERFACE (CFI) IDENTIFICATION CODES: |
JEP137B | May 2004 |
This publication is a companion document to the Common Flash Interface (CFI) standard, JESD68, which outlines the device and host system software interrogation handshake. JEP137 documents ID Code assignments for: 1)) the Algorithm-specific Command Set and Control Interfaces and 2) the Device Interfaces. It is published as needed when additions are made to either of these lists of codes. To make a request for an ID Code please contact the JEDEC Office at (703)907-7558. Committee(s): JC-42.4 Free download. Registration or login required. |
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100-Pin DDR SDRAM Unbuffered 32b-DIMM Design Specification |
MODULE4.20.9 | Nov 2004 |
Release No. 14 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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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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Byte Wide EEPROM |
EEPROM3.5.1 | Aug 2005 |
Release No. 14 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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SDRAM and SGRAM Architectural Operational Features Table of Contents |
SDRAM3.11.5.TOC | May 2006 |
Release No.16 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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SPD Annex I, Serial Presence Detect for Virtual Channel SDRAM, Revision 2 |
SPD4.1.2.9 | Jun 2006 |
Release No.9A Committee(s): JC-42 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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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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SPD Annex J: Serial Presence Detect for DDR2 SDRAM |
SPD4.1.2.10 | Jan 2007 |
Release No. 17 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Word Wide TTL and MOS SRAM |
SRAM3.7.7 | 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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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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PSRAM, Pseudo-Static RAM |
PSRAM3.8 | Apr 2007 |
Release No. 16. Item 1633 Committee(s): JC-42.2 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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SPECIALITY DDR2-1066 SDRAM |
JESD208 | Nov 2007 |
This document defines the Specialty DDR2-1066 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 JEDEC compliant 256 Mb through 4 Gb for x4, x8, and x16 Specialty DDR2-1066 SDRAM devices. Committee(s): JC-42.3 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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Word Wide SDRAM. |
SDRAM3.11.4 | Feb 2008 |
Release No. 17. Item 1749.01 Committee(s): JC-42.3 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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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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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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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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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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Addendum No. 1 to JESD209A, LOW POWER DOUBLE DATA RATE (LPDDR) SDRAM, 1.2 V I/O. |
JESD209A-1 | Mar 2009 |
This document defines the Low Power Double Data Rate (LPDDR) SDRAM 1.2 V I/O, including AC and DC operating conditions, extended mode register settings, and I-V characteristics. The purpose of this Standard is to define the minimum set of requirements for JEDEC compliant 64 Mb through 2 Gb for x16 and x32 Low Power Double Data Rate SDRAM devices with 1.2 V I/O. System designs based on the required aspects of this specification will be supported by all LPDDR SDRAM vendors providing compliant devices. Committee(s): JC-42.6 Free download. Registration or login required. |
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TSE2002 Serial Presence Detect with Thermal Sensor |
PRN09-NV2 | Jul 2009 |
Preliminary publication of BoD-approved ballot material, prior to its inclusion in the next release of the appropriate JEDEC Standard. Item 1756.00A Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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TS3000 Standalone Thermal Sensor Component |
SPD4.1.5 | Nov 2009 |
Release No. 19A, Item 1640.11 Committee(s): JC-42.4 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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DDR2 SDRAM STANDARD |
JESD79-2F | Nov 2009 |
This comprehensive standard defines all required aspects of 256Mb through 4Gb DDR2 SDRAMs with x4/x8/x16 data interfaces, including pinout, addressing, functional description, features, ac and dc parametrics, truth tables, and packages. Standard JESD79-2 uses a SSTL_18 interface, which is described in another JEDEC standard called JESD8-15. The purpose of this Standard is to define the minimum set of requirements for compliant devices 256Mb through 4Gb, x4/x8/x16 DDR2 SDRAMs. System designs based on the required aspects of this specification will be supported by all DDR2 SDRAM vendors providing compliant devices. Changes between versions is indicated in Annex A. Item 1778.01 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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Serial Presence Detect (SPD) Table of Contents |
SPD4.1.TOC | Mar 2010 |
Release No. 19 Committee(s): JC-42.3, JC-42.5 JESD21-C Solid State Memory Documents Main Page Free download. Registration or login required. |
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Addendum No. 2 to JESD79-3, 1.25 V DDR3U-800, DDR3U-1066, DDR3U-1333, and DDR3U-1600 |
JESD79-3-2 | Oct 2011 |
The purpose of this addendum is to define the DDR3U specifications that supersede the DDR3 specifications in the JESD79-3. The use of DDR3-800, DDR3-1066, DDR3-1333, and DDR3-1600 titles in JESD79-3 are to be interpreted as DDR3U-800, DDR3U-1066, DDR3U-1333, and DDR3U-1600, respectively, when applying towards DDR3U definition; unless specifically stated otherwise. Item 1769.01 Committee(s): JC-42.3 Free download. Registration or login required. |
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WIDE I/O SINGLE DATA RATE (WIDE I/O SDR) |
JESD229 | Dec 2011 |
This standard defines the Wide I/O specification, including features, functionality, AC and DC characteristics, packages, and micropillar signal assignments. This standard covers the following technologies: Wide I/O. The purpose of this standard is to define the minimum set of requirements for JEDEC compliant, 1 Gb through 32 Gb SDRAM (monolithic density) devices with 4, 128b wide channels using direct chip-to-chip attach methods between 1 to 4 memory devices and a controller device. 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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Addendum No. 1 to JESD79-3 - 1.35 V DDR3L-800, DDR3L-1066, DDR3L-1333, DDR3L-1600, and DDR3L-1866This is a minor editorial revision, the differences between revisions can be found on page 17 of the document. |
JESD79-3-1A.01 | May 2013 |
The JESD79-3 document defines DDR3L SDRAM, including features, functionalities, AC and DC characteristics, packages, and ball/signal assignments with the exception of what is stated within this standard. The purpose of this standard is to define the DDR3L specifications that supersede the DDR3 specifications as defined in JESD79-3. The use of DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, and DDR3L-1866 titles in JESD79-3 are to be interpreted as DDR3L-800, DDR3L-1066, DDR3L-1333, DDR3L-1600, and DDR3L-1866 respectively, when applying towards DDR3L definition; unless specifically stated otherwise. Free download. Registration or login required. |
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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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Addendum No. 3 to JESD79-3, 3D STACKED SDRAM |
JESD79-3-3 | Dec 2013 |
This addendum to JESD79-3 defines the 3DS DDR3 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 compliant 8Gbit through 64Gbit x4 and x8 3DS DDR3 SDRAM devices. This document was created based on the E revision of the DDR standard (JESD79). Each aspect of the changes for 3DS DDR3 SDRAM operation was considered. Committee(s): JC-42.3 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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WIDE I/O 2 (WideIO2) |
JESD229-2 | Aug 2014 |
This standard defines Wide I/O 2 (WideIO2), including features, functionality, AC and DC characteristics, packages, and micropillar signal assignments. The purpose of this standard is to define the minimum set of requirements for JEDEC compliant, 8 Gb through 32 Gb SDRAM devices with 4 or 8 64-bit wide channels using direct chip-to-chip attach methods for between 1 and 4 memory devices and a controller/buffer device. The WideIO2 architecture is an evolution of the WIO architecture to enable bandwidth scaling with capacity. Committee(s): JC-42.6 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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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 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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Annex A: Differences between JESD21C Release 29 and its predecessor JESD21C, Release 28.Release Number: 29 |
AnnexA - JESD21C | Jan 2020 |
This table briefly describes the changes made to this standard, JESD21-C, Release 29, compared to its predecessor, JESD21C, Release 28. 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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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 |