Main Memory: DDR SDRAM

Semiconductor memory plays an essential role in the development and functions of countless electronic devices ranging from computers and servers to gaming consoles to televisions and telecommunications products. JEDEC standards encompass virtually every key standard for semiconductor memory in the market today.

JEDEC DDR6

DDR6 is in development in JEDEC’s JC-42 Committee for Solid State Memories.  JEDEC encourages companies to join and help shape the future of JEDEC standards.  Membership grants access to pre-publication proposals and provides early insights into active projects such as DDR6.  Discover the benefits of membership and join today.

JEDEC DDR5

JEDEC published its widely-anticipated JESD79-5 DDR5 SDRAM standard in July 2020, and the most recent update, JESD79-5C.01, in July 2024. This latest update includes the addition of features designed to improve reliability and security and to enhance performance in a wide range of applications from high-performance servers to emerging technologies such as AI and machine learning.  JESD79-5C.01 DDR5 is available for download from the JEDEC website. 

JEDEC DDR4

First published in September 2012 and most recently updated in January 2020, the JEDEC DDR4 standard has been defined to provide higher performance, with improved reliability and reduced power, thereby representing a significant achievement relative to previous DRAM memory technologies. JESD79-4C DDR4 is available for download from the JEDEC website.
 

JC-42 Committee

Looking towards the future, JEDEC's JC-42 Committee for Solid State Memories stands at the forefront of the ongoing effort to produce next generation memory device standards. As with all JEDEC standards development activities, industry participation is welcome. Learn more about membership and join today.

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Events and Meetings

JC-16,40,42,45,63,64 San Diego/LaJolla 3 - 6 Mar 2025
JC-16,40,42,45,63,64 Hsinchu 2 - 5 Jun 2025
JC-16,40,42,45,63,64 Vancouver 25 - 28 Aug 2025
JC-16,40,42,45,63,64 Waikoloa, The Big Island 1 - 4 Dec 2025
JC-16,40,42,45,63,64 Committees Nashville 2 - 5 Mar 2026

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Related Committees and Subcommittees

JC-42 Solid State Memories
JC-42.2 High Bandwidth Memory (HBM)
JC-42.3 Dynamic RAMs (DDRx)
JC-42.3D DRAM Pinouts
JC-42.4 Non-Volatile Memory Devices
JC-42.6 Low Power Memories