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Release No.13

Committee(s): JC-42, JC-42.5

JESD21-C Solid State Memory Documents Main Page

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This material is intended to be reflected in supplier specifications for point to point DDR devices ranging from 400 Mb/s to 800 Mb/s operation. It is a method to specify driver impedance with something other than a number that does not nec-essarily define how it operates in a real net This standard addresses this issue using net lengths and specifies how much uncertainty can exist in the data for each speed supported.

Committee(s): JC-16.1, JC-16

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Release No. 18

Committee(s): JC-42.3

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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).

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Committee(s): JC-42.3, JC-42.6

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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

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Committee(s): JC-42.3

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Release 31.  Item 2167.05This revision contains terminology updates only.

Committee(s): JC-45, JC-45.2, JC-45.3

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