JEDEC Updates Standards for Low Power Memory Devices

ARLINGTON, Va. — (BUSINESS WIRE) — November 18, 2015JEDEC Solid State Technology Association, the global leader in standards development for the microelectronics industry, today announced the publication of JESD209-4A, Low Power Double Data Rate 4 (LPDDR4) and JESD209-3C Low Power Double Data Rate 3 SDRAM (LPDDR3). The updates are designed to enhance performance capabilities for these mobile memory standards, which significantly boost memory speed and efficiency for mobile computing devices such as smartphones, tablets, and ultra-thin notebooks. Developed by JEDEC’s JC-42.6 Subcommittee for Low Power Memories, both updates are available for free download from the JEDEC website.

When first published in August 2014, LPDDR4 represented a dramatic performance increase over the prior version of the standard. In order to achieve even higher performance, the latest revision adds skew definitions between dies on the channel (rank to rank parameters such as tDQS2DQ_rank2rank and tDQSCK_rank2rank). These definitions address DRAM process variation and allow the SoC to better manage DRAM timing with less complexity. JESD209-4A also adds new eMCP (embedded multi-chip packages) and provides key errata missing from the original standard.

First published in May 2012, JESD209-3 LPDDR3 was designed to offer a higher data rate, improved bandwidth and power efficiency, and higher memory densities over its groundbreaking predecessor, LPDDR2. Still widely used in array of mobile products, this latest update to LPDDR3 offers new package configurations:

  • 136-ball PoP (eMMC + LPDDR3)
  • 272-ball dual-Channel POP
  • 221-ball single channel MCP

In addition, lower DRAM densities addressing has been added and a “refresh multiplier” parameter (tREFIM = RM x tREFI) was also introduced.

“JEDEC remains committed to developing standards that meet the performance demands required by the latest mobile products, and that effort includes updating our existing standards to serve the industry’s needs,” said Mian Quddus, JEDEC Board of Directors Chairman.

About JEDEC

JEDEC is the global leader in the development of standards for the microelectronics industry. Thousands of volunteers representing nearly 300 member companies work together in 50 JEDEC committees to meet the needs of every segment of the industry, manufacturers and consumers alike. The publications and standards generated by JEDEC committees are accepted throughout the world. All JEDEC standards are available for free download from the JEDEC website. For more information, visit www.jedec.org.



Contact:

JEDEC Solid State Technology Association
Emily Desjardins, 703-907-7560
Email Contact




Review Article Be the first to review this article
SI2

ClioSoft: Design Hub

Featured Video
Editorial
Peggy AycinenaIP Showcase
by Peggy Aycinena
Grant Pierce: Grand Challenges in IP
More Editorial  
Jobs
Technical Support Engineer for EDA Careers at Freemont, CA
LVS PEX DESIGN ENGINEERS SILICON VALLEY for EDA Careers at San Jose, CA
LVS for PDK Design Engineer SILICON VALLEY for EDA Careers at San Jose, CA
Upcoming Events
EMC PCB Design Integration at 13727 460 Ct SE North Bend WA - Jun 6 - 9, 2017
DAC 2017 Conference at Austin TX - Jun 18 - 22, 2017
2017 FLEX Conference at Monterey Conference Center 1 Portola Plaza, Monterey CA - Jun 19 - 22, 2017
MPSoc Forum 2017 - July 2 - 7, 2017, Les Tresoms Hotel, Annecy, France at Les Tresoms Hotel Annecy France - Jul 2 - 7, 2017
NEC: CyberWorkbench
ClioSoft
DAC2017



Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy