MMC

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Related to MultiMediaCard: RS-MMC

MMC

(1) See Microsoft Management Console.

(2) (MultiMediaCard) A flash memory card for cellphones, PDAs and other handheld devices. Introduced in 1997 by the MultiMediaCard Association with 4MB of storage, capacity increased to 2GB in the mid-2000s. MMCs were superseded by SD Cards, but SD Card readers support both formats.

MMC Versions
Numerous versions of MMC were introduced, including the encrypted SecureMMC with licensing data in a tamper-proof section of the card. A one-time programmable (OTP) version was available, and a read-only (ROM-MMC) card was used in Palm PDAs. Three smaller MMCs also debuted (see chart below).

Embedded MMC (eMMC) and miCARD
eMMC is flash memory and an MMC controller in a BGA package for direct mounting on a circuit board. miCARD is a high-capacity MMC (up to 2TB) that plugs into a USB port and with an adapter into an MMC slot. In 2008, eMMC and miCARD were turned over to the JEDEC division of EIA.


MultiMediaCards Vs. SD Cards
MMCs look like SD Cards; however, the thicker SD Cards (2.1mm vs. 1.4) have two more pins. MMCs can be read in SD Card readers, and dual-format SD/MMC readers (bottom) accept both. See SD Card.


MultiMediaCards Vs. SD Cards
MMCs look like SD Cards; however, the thicker SD Cards (2.1mm vs. 1.4) have two more pins. MMCs can be read in SD Card readers, and dual-format SD/MMC readers (bottom) accept both. See SD Card.


MultiMediaCards Vs. SD Cards
MMCs look like SD Cards; however, the thicker SD Cards (2.1mm vs. 1.4) have two more pins. MMCs can be read in SD Card readers, and dual-format SD/MMC readers (bottom) accept both. See SD Card.







MMC Vs. Reduced-Size MMC (RS-MMC)
RS-MMC, Dual-Voltage RS-MMCs (DV RS-MMCs) and MMCmobile cards can be used in full-size MMC slots with an adapter (see below). See SD Card.





                      Data   Size             TransferMMC TYPE  (mm)     Voltage  (Mhz)

  MMC        32x24x1.4  Hi        20
  MMC+       32x24x1.4  Hi        26/52

  RS-MMC     18x24x1.4  Hi        20
  DV RS-MMC  18x24x1.4  Lo/Hi     20
  MMCmobile  18x24x1.4  Lo/Hi     20

  MMCmicro   14x12x1.1  Lo/Hi
  miCARD     21x12x1.95 Lo/Hi/5v
  eMMC       BGA chip   Lo/Hi

  Lo=1.7 to 1.95v    Hi=2.7 to 3.6v
References in periodicals archive ?
The MultiMediaCard Association (MMCA) is the open standard memory card organization, promoting worldwide adoption of storage media and peripheral I/O devices designed especially for mobile phones and digital imaging devices.
0 card is backward compatible with all previous versions of MultiMediaCards and host devices.
With this latest expansion of Hitachi's Secure MultiMediaCard product line, we are looking toward the future, one where the security feature is commonplace," said Mark D'Arcangelo, product manager, nonvolatile memory for Hitachi Semiconductor (America) Inc.
MMCplus(TM) and MMCmobile(TM) are product names and logos for memory cards built to the high-speed MultiMediaCard (MMC) standards that feature the highest data transfer rates among all existing memory card standards.
Compatible with earlier MultiMediaCards, the new cards are suitable for music distribution and similar applications in digital personal devices such as mobile phones, pagers, portable music players, toys and games machines, digital cameras and PDAs.
The market for mobile phones with removable memory cards like Secure Digital cards and MultiMediaCards reached over 277 million in 2006, compared to 115 million in 2005 (Source: Strategy Analytics Web site).
The four-ounce large color screen handheld and the stamp-sized MultiMediaCard offer the convenience of five readily available dictionaries -- the 2005, 100th anniversary edition of the illustrated "Le Petit Larousse," a comprehensive French thesaurus, and three French bilingual dictionaries (English, Spanish and German).
Matti Floman, Senior Technology Manager of Nokia, said, "eMMC introduces an embedded member to the mass memory family developed in cooperation between JEDEC and the MultiMediaCard Association.
Presti, global champion in World Inline Competition (WIC) last years, and Zangarini, sixth overall in last year's WIC, are two of the five outstanding athletes selected for the 2006 MMCmicro Salomon Inline Skating Team, sponsored by the MultiMediaCard Association, SalomonSports, Samsung Semiconductor and Samsung Techwin (Camera Division).
The MultiMediaCard Association (MMCA) and JEDEC today announced that they have entered into a collaborative agreement under which they will work together to develop MMC memory card specifications as a joint set of standards to be adopted by both organizations.
This assignment follows Palm's recent announcement about the creation of Mobile Digital Media to rapidly accelerate bringing new Secure Digital and MultiMediaCard content to worldwide consumer markets.
is chartered with accelerating the development of compelling content for SD and MultiMediaCard media.

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