A 32 MB Multimedia Card

Multimedia Card

A 128 MB RS-MMC card and an adapter

The Multimedia Card (MMC) is a flash memory memory card standard. Unveiled in 1997 by Siemens AG and SanDisk, it is based on Toshiba's NAND-based flash memory, and is therefore much smaller than earlier systems based on Intel NOR-based memory such as Compact Flash. MMC is about the size of a postage stamp: 24 mm x 32 mm x 1.5 mm. MMC originally used a 1-bit serial interface, but newer versions of the specification allow transfers of 4 or sometimes even 8 bits at a time. They have been more or less superseded by Secure Digital cards, but still see significant use because MMC cards can be used in any device which supports SD cards. MMC, fot. ... MMC, fot. ... A megabyte is a unit of information or computer storage equal to approximately one million bytes. ... MMC, fot. ... MMC, fot. ... Wikipedia does not have an article with this exact name. ... Wikipedia does not have an article with this exact name. ... A megabyte is a unit of information or computer storage equal to approximately one million bytes. ... Image File history File links Download high resolution version (1000x956, 150 KB) ReducedSize MultiMediaCard (32MB) with MMC converter Photo taken by me, Andreas Frank, Munich, Germany, February 2005. ... Image File history File links Download high resolution version (1000x956, 150 KB) ReducedSize MultiMediaCard (32MB) with MMC converter Photo taken by me, Andreas Frank, Munich, Germany, February 2005. ... A USB Flash Memory Device Flash memory is a form of EEPROM (Electrically-Erasable Programmable Read-Only Memory) that allows multiple memory locations to be erased or written in one programming operation. ... A 32 MB High Speed CompactFlash Type I card A memory card or flash memory card is a solid-state electronic flash memory data storage devices used with digital cameras, handheld and laptop computers, telephones, music players, video game consoles, and other electronics. ... 1997 (MCMXCVII in Roman) is a common year starting on Wednesday of the Gregorian calendar. ... Siemens AG (FWB: SIE, NYSE: SI) is the worlds largest electronics company. ... SanDisk Corporation (NASDAQ: SNDK), formerly SunDisk, is a US-based multinational corporation which designs and markets flash memory card products. ... Toshiba Corporation (東芝, Tōshiba) (TYO: 6502) is a Japanese high technology electrical and electronics manufacturing firm, headquartered in Tokyo, Japan. ... NAND Logic Gate The Sheffer stroke, |, is the negation of the conjunction operator. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is a U.S.-based multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... NOR Logic Gate Logical nor (not or), joint denial, or Webb-operation is a boolean logic operator which produces a result that is the inverse of logical or. ... CompactFlash (CF) was originally a type of data storage device, used in portable electronic devices. ... This article is about the unit of information; for other uses, see Bit (disambiguation). ... In telecommunications and computer science, serial communications refers to any data transmission scheme in which data is sent one symbol at one time, sequentially over a communications channel. ... 16Mb SD Card Secure Digital, or SD, is a flash memory data storage device based on Toshibas earlier Multi Media Cards (MMC). ...

Typically, an MMC card is used as storage media for a portable device, in a form that can easily be removed for access by a PC. For example, a digital camera would use an MMC card for storing image files. With an MMC reader (typically a small box that connects via USB or some other serial connection, although some can be found integrated into the computer itself), a user could copy the pictures taken with the digital camera off to his or her computer. Modern computers, both laptops and desktops, often have SD slots, which can read MMC cards. Personal computer and peripherals. ... A SiPix digital camera next to a matchbox to show scale. ... Note: USB may also mean upper sideband in radio. ...

MMC cards are currently available in sizes up to and including 4 GB, and are used in almost every context in which memory cards are used, like cellular phones, digital audio players, digital cameras and PDAs. Since the introduction of Secure Digital few companies build MMC slots into their devices, but the slightly thinner, pin-compatible MMC cards can be used in any device that supports SD cards. A handful of companies, most notably Nokia, still support MMC exclusively, however. A gigabyte (derived from the SI prefix giga-) is a unit of information or computer storage equal to one billion bytes. ... A 32 MB High Speed CompactFlash Type I card A memory card or flash memory card is a solid-state electronic flash memory data storage devices used with digital cameras, handheld and laptop computers, telephones, music players, video game consoles, and other electronics. ... Mobile phones from various years An Arabic language mobile phone A mobile phone or cell(ular) phone is an electronic telecommunications device. ... A hard-drive-based player (Apple iPod) An MP3 CD player (Philips Expanium) A flash-based player (iBox Mediaman) A digital audio player (DAP) is a device that stores, organizes and plays digital music files. ... A SiPix digital camera next to a matchbox to show scale. ... palmOne Tungsten T5 Personal digital assistants (also called PDAs) are handheld devices that were originally designed as personal organizers, but became much more versatile over the years. ... 16Mb SD Card Secure Digital, or SD, is a flash memory data storage device based on Toshibas earlier Multi Media Cards (MMC). ... Nokia Corporation NYSE: NOK is one of the worlds largest telecommunications equipment manufacturers. ...

Open standard

This technology is an open standard available to any company who wants to improve upon it or develop products for it. Open Standards are publicly available specifications for achieving a specific task. ... A company is, in general, any group of persons, which are known as its members, united to pursue a common interest. ...

Reduced-Size Multimedia Card (RS-MMC)

MMC cards also come in a smaller form factor, of about half the size: 24 mm × 16 mm × 1.5 mm. This alternate form factor is known as Reduced-Size Multimedia Card, or RS-MMC, and was introduced in 2004. RS-MMC cards are simply smaller MMC cards; by using a simple mechanical adapter to elongate the card, an RS-MMC card can be used in any MMC (or SD) slot. RS-MMC cards are currently available in sizes up to and including 1 GB. 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...

The only significant hardware licensors of RS-MMC cards are Nokia and Siemens, who often use RS-MMC in their Series 60 Symbian smartphones, the Nokia 770 Internet Tablet (Nokia), and generations 65 and 75 (Siemens). Newer RS-MMC cards, used in Nokia's newer phones (like the Nokia 6630 and Nokia 6680), support a lower voltage (1.8 V instead of 3 V) mode to reduce battery demand, and these lower-voltage RS-MMC cards, known as Dual Voltage Reduced Size MMC (DV-RS-MMC), and can be marketed as MMCmobile when they meet the MMCmobile card standards. These low-voltage cards are backwards compatible with older RS-MMC devices. The dual voltage cards, and the MMCmobile are part of the MMC 4.x standards. This article or section should be merged with Nokia Series 60 Series 60 is a user interface for mobile phones that is developed and marketed by Nokia. ... Symbian OS is an operating system with associated libraries, user interface frameworks and reference implementations of common tools, produced by Symbian. ... Nokia 3620/3660 A smartphone is any electronic handheld device that integrates the functionality of a mobile phone, personal digital assistant or other information appliance. ... The Nokia 770 Internet Tablet is a wireless touchscreen internet appliance from Nokia, originally announced at the LinuxWorld Summit in New York on May 25, 2005. ... Nokia 6630 smartphone with the Aluminium Grey covers The Nokia 6630 is a smartphone using the Series 60 platform with the Symbian operating system, released in November 2004. ... Nokia 6680 imaging smartphone Three closely related handsets running the Symbian Series 60 operating system, the Nokia 6680, 6681 and 6682 feature Bluetooth, a 1. ... This article may be too technical for most readers to understand. ...

MMC 4.x and secureMMC

Standard 4.x (4.0, 4.1, etc.) was released in 2005 (MMCA System Specification 4.1). This new standard involves the higher performance MMC4 (with the same basic MMC form factor but more pins) called MMCplus, and RS-MMC4, marketed as MMCmobile. MMCmobile mirrors the old RS-MMC in that it has the same connections and connection standard, but is about half the size as regular MMC cards. Also in the works is secureMMC, which will feature encryption features similar to Secure Digital or MagicGate Memory Sticks. 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... A memory stick with MagicGate technology. ...

External links

• MultiMediaCard Association
• Embedded systems developer specs at Sandisk
• KingMax MMC technical document (PDF)
• MMC Wiki