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Displaying 1 - 8 of 8 documents. Show 5 results per page.

Title	Document #	Date
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.
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.
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.
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.
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.
STANDARD FOR 64K x 1 DYNAMIC RAM - SUPERSEDED BY JESD21-C. Status: RescindedApr-85	JEP102	Jan 1978
Committee(s): JC-42
STANDARD MANUFACTURERS IDENTIFICATION CODE NOTE: JEP106U was in error starting with bank two an additional continuation code was added, JEP106U should be discarded.	JEP106BH	Sep 2023
The manufacturers identification code is defined by one or more 8 bit fields, each consisting of 7 data bits plus 1 odd parity bit. The manufacturers identification code is assigned, maintained and updated by the JEDEC Office. The intent of this identification code is that it may be used whenever a digital field is required, e.g., hardware, software, documentation, etc. To make a request for an ID Code please go to https://www.jedec.org/standards-documents/id-codes-order-form Committee(s): JC-42, JC-42.3 Free download. Registration or login required.
SYSTEM LEVEL ROWHAMMER MITIGATION	JEP301-1	Mar 2021
A DRAM rowhammer security exploit is a serious threat to cloud service providers, data centers, laptops, smart phones, self-driving cars and IoT devices. Hardware research and development will take time. DRAM components, DRAM DIMMs, System-on-chip (SoC), chipsets and system products have their own design cycle time and overall life time. This publication recommends best practices to mitigate the security risks from rowhammer attacks. Item 1866.02. Committee(s): JC-42 Free download. Registration or login required.