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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

This document is intended to guide device manufacturers in developing datasheets and to device customers in understanding datasheet entries.

The Flip Chip Tensile Pull Test Method is performed to determine the fracture mode and strength of the solder bump interconnection between the flip chip die and the substrate. It should be used to assess the consistency of the chip join process. This test method is a destructive test.

Designator: PBMA-N32[39]_Ip0-R14p1x18p1Z1p65-R0p71x1p1 
Item: 11.11-987, Access STP Files for MO-347A
Cross Reference: N/A

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.

The HBM DRAM is tightly coupled to the host compute die with a distributed interface. The interface is divided into independent channels. Each channel is completely independent of one another. Channels are not necessarily synchronous to each other. The HBM DRAM uses a wide-interface architecture to achieve high-speed, low-power operation. The HBM DRAM uses differential clock CK_t/CK_c. Commands are registered at the rising edge of CK_t, CK_c. Each channel interface maintains a 128b data bus operating at DDR data rates. Also available for designer ease of use is HBM Ballout Spreadsheet (Note this version is the latest version for use with JESD235D). Committee item 1797.99L.

This addendum defines LPDDR4X specifications that supersede the LPDDR4 Standard (JESD209-4) to enable low VDDQ operation of LPDDR4X devices to reduce power consumption. Item 1831.55A.

Designator: PDSO-G#_I0P##-##...

Item 11.11-990

This version is a minor editorial adding Annex B that was left out of the original publication October 2020.An NVDIMM-P device is defined as a LRDIMM memory module which provides host controller access to DRAM and/or other memory devices such as persistent memory.  A transactional protocol is described for NVDIMM-P, which may be used on a DDR interface allowing operation of both standard DRAM modules and NVDIMM-P modules on the same channel. Item 2233.98K.

This publication describes the guidelines for VT measurement methods and conditioning prior to VT testing in SiC power MOSFETs to reduce or eliminate the effect of the aforementioned hysteresis.

This document is intended for use in the GaN power semiconductor and related power electronic industries and provides guidelines for test methods and circuits to be used for continuous-switching tests of GaN power conversion devices.

This document, while establishing the complex nature of System Level ESD, proposes that an efficient ESD design can only be achieved when the interaction of the various components under ESD conditions are analyzed at the system level. This objective requires an appropriate characterization of the components and a methodology to assess the entire system using simulation data. This is applicable to system failures of different categories (such as hard, soft, and electromagnetic interference (EMI)). This type of systematic approach is long overdue and represents an advanced design approach which replaces the misconception, as discussed in detail in JEP161, that a system will be sufficiently robust if all components exceed a certain ESD level.

Designator: PBGA-B#[#]_I80...
Item: 11.11-989, Access STP File for MO-216G
Cross Reference: DR4.5

This standard was created to facilitate the procurement and use of high reliability semiconductor microcircuits or discrete devices provided in bare die form, commonly known as Known Good Die (KGD).

This specification defines the electrical and mechanical requirements for Raw Card D, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2204.23

This document defines the electrical and mechanical requirements for Raw Card B, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Item 2231.26.

This specification defines the electrical and mechanical requirements for Raw Card E, 288-pin, 1.2 Volt (VDD), Load Reduced, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM LRDIMMs). These DDR4 Load Reduced DIMMs (LRDIMMs) are intended for use as main memory when installed in PCs. Item 2232.20.

This document defines the electrical and mechanical requirements for Raw Card A, 288-pin, 1.2 Volt (VDD), Unbuffered, Double Data Rate, Synchronous DRAM Dual In-Line Memory Modules (DDR4 SDRAM UDIMMs). These DDR4 Unbuffered DIMMs (UDIMMs) are intended for use as main memory when installed in PCs. Committee Item 2231.38A.

This annex describes the serial presence detect (SPD) values for all DDR4 modules covered in Document Release 6. Differences between module types are encapsulated in subsections of this annex. These presence detect values are those referenced in the SPD standard document for ‘Specific Features’. Item 2220.01H. 

This standard specifies the characteristics of the UFS card electrical interface and the memory device. This document defines the added/modified features in UFS card compared to embedded UFS device. For other common features JESD220, UFS, will be referenced.

The Cycled Temperature-humidity-bias Life Test is performed for the purpose of evaluating the reliability of nonhermetic packaged solid state devices in humid environments. It employs conditions of temperature cycling, humidity, and bias that accelerate the penetration of moisture through the external protective material (encapsulant or seal) or along the interface between the external protective material and the metallic conductors that pass through it. The Cycled Temperature-Humidity-Bias Life Test is typically performed on cavity packages (e.g., MQUADs, lidded ceramic pin grid arrays, etc.) as an alternative to JESD22-A101 or JESD22-A110.

Definition for all DDRx component documents to reference. This is generic to any DDRxtechnology. Item 1842.34

Designator: PDSO-G#_I0P5-##...
Item: 11.11-984, Access STP Files for MO-345A
Cross Reference: SO-023, GS-010C

This standard specifies the extension specification of the UFS electrical interface and the memory device. This document describes the extended feature, called Host Performance Booster (HPB), in UFS specification. It also provides some details in how to utilize the HPB for realizing high performance in UFS devices. Committee item 138.34