MMC

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Related to MultiMedia Card: RS-MMC, Secure Digital

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 MMCs were superseded by SD Cards, but SD Card readers support both formats.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 ?
However, the ability that truly sets the GR-DVM70 apart from the rest and contributes to the name "Digital DualCam" is its built-in Digital Still Camera facility - or namely the HG Pro-Snapshot function and MultiMedia Card (MMC) compatibility.
We were the first company in North America to do all-in-one multimedia cards," said Pierre Theberge, president of Vectron Technologies.
2Compatible memory cards include Compact Flash, Micro drive, Smart Media, Memory Stick, Memory Stick PRO , SD Card, and Multimedia card v.
Arasan is an Executive Member of the SD Association, Multimedia Card Association and the CE-ATA Workgroup.
For portable storage versatility, the camcorders can accommodate either a Secure Digital (SD) Memory Card or a MultiMedia Card.
0 to the latest handset storage devices such as Secure Digital (SD), MultiMedia Card (MMC), Hard Disk Drive (HDD) and NAND Flash.

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