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The ''SPMT Consortium'' is a coalition of companies involved in designing and manufacturing
mobile devices A mobile device or handheld device is a computer small enough to hold and operate in hand. Mobile devices are typically battery-powered and possess a flat-panel display and one or more built-in input devices, such as a touchscreen or keypad. Mod ...
,
integrated circuits An integrated circuit (IC), also known as a microchip or simply chip, is a set of electronic circuits, consisting of various electronic components (such as transistors, resistors, and capacitors) and their interconnections. These components a ...
, and semiconductor IP.SPMT Factsheet
/ref> The organization developed the SPMT specification, which is a
SerDes A Serializer/Deserializer (SerDes) is a pair of functional blocks commonly used in high speed communications to compensate for limited input/output. These blocks convert data between serial data and parallel interfaces in each direction. The ter ...
memory interface primarily for commodity
DRAM Dram, DRAM, or drams may refer to: Technology and engineering * Dram (unit), a unit of mass and volume, and an informal name for a small amount of liquor, especially whisky or whiskey * Dynamic random-access memory, a type of electronic semicondu ...
and mobile markets. The specification is ideal for data intensive, media-rich functionality like video, GPS, internet access, email, multimedia, and music.


History

The SPMT Consortium was founded in 2009 by
ARM Holdings Arm Holdings plc (formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a British semiconductor and software design company based in Cambridge, England, whose primary business is the design of central processing ...
,
Hynix SK Hynix Inc. () is a South Korean supplier of dynamic random-access memory (DRAM) chips and flash memory chips. SK Hynix is one of the world's largest semiconductor vendors. Founded as Hyundai Electronics in 1983, SK Hynix was integrated into ...
Semiconductor, Inc.,
LG Electronics LG Electronics Inc. () is a South Korean Multinational corporation, multinational major appliance and consumer electronics corporation headquartered in Yeouido-dong, Seoul, South Korea. LG Electronics is a part of LG, LG Corporation, the fourth ...
,
Samsung Electronics Samsung Electronics Co., Ltd. (SEC; stylized as SΛMSUNG; ) is a South Korean multinational major appliance and consumer electronics corporation founded on 13 January 1969 and headquartered in Yeongtong District, Suwon, South Korea. It is curr ...
Co., Ltd. and
Silicon Image Silicon Image Inc. was an American fabless semiconductor company based in Hillsboro, Oregon, and active from 1995 to 2015. The company designed circuits for mobile phones, consumer electronics and personal computers (PCs). It also manufactured wi ...
, Inc. The Consortium is managed by SPMT, LLC, the entity responsible for licensing the SPMT memory interface specification.ECN Magazine.
SPMT Consortium Releases New Specification
" October 2, 2009.
SPMT is a memory specification for
dynamic random access memory Dynamics (from Greek δυναμικός ''dynamikos'' "powerful", from δύναμις ''dynamis'' " power") or dynamic may refer to: Physics and engineering * Dynamics (mechanics), the study of forces and their effect on motion Brands and ente ...
(DRAM) that is based on SerDes rather than a standard parallel interface.


Technology summary

# 20 signaling pins for 6 GB/s performance # Simultaneous Read/Write # Low energy per bit – (4–5 pJ/bit effective) # Self-clocking # Low EMI # High noise rejection # Standard DRAM commands # Burst lengths of 16, 32, and 64 bytes # Low voltage differential signaling


Members

The SPMT Consortium is divided into three levels of membership: Promoters (Founders), Contributors, and Members. * Promoters (Founders): Define, implement and promote Serial Port Memory Technology for broad market adoption as an industry
standard Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object ...
. * Contributors: Work in cooperation with the promoters and participate in the definition of future SPMT specifications. * Members: Have access to the latest version of the SPMT specification and the rights to create innovative products that implement the technology. The SPMT Consortium assesses an annual fee from all members to help fund the marketing, administration and licensing activities of the
Consortium A consortium () is an association of two or more individuals, companies, organizations, or governments (or any combination of these entities) with the objective of participating in a common activity or pooling their resources for achieving a ...
.


Timeline of events

* May 18, 2009 - SPMT Consortium announced. * July 21, 2009 - SPMT President appointed. * August 17, 2009 - ARM joins SPMT as Promoter. * August 31, 2009 - SPMT releases abridged specification. * October 1, 2009 - SPMT releases new technology specification.


See also

*
Physical layer In the seven-layer OSI model of computer networking, the physical layer or layer 1 is the first and lowest layer: the layer most closely associated with the physical connection between devices. The physical layer provides an electrical, mechani ...
*
Link layer In computer networking, the link layer is the lowest layer in the Internet protocol suite, the networking architecture of the Internet. The link layer is the group of methods and communications protocols confined to the link that a host is phys ...


External links


SPMT.org Web site


References

{{reflist Technology consortia Computer memory