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Kingston offers standard SD cards as well as high-performance Elite Pro SD cards.
7.4 MULTIMEDIACARD (MMC)
MultiMediaCards are one of the smallest flash cards available, about the size of a
postage stamp. They were introduced in 1997 and initially used in the mobile phone
and pager markets. Today, they are commonly used in digital cameras, mobile phones,
and MP3 players. The MultiMediaCard Association sets the specifications for MMC.
7.5 SMARTMEDIA CARDS (SM, PREVIOUSLY CALLED SSFDC)
SmartMedia cards, introduced in 1996, are the thinnest form factor flash storage
devices. They were originally called SSFDC, for Solid-State Floppy Disk card, as they
look like a miniature floppy disk. SmartMedia cards usually incorporate a single flash
chip and do not incorporate a controller. Thus, they depend on the host controller to
manage all memory reads and writes. The SSFDC Forum sets the specifications for
SmartMedia cards.
Digital Media Reader-Writers
Digital media reader-writers allow flash storage devices to be used as portable storage
for computers as well as for uploading or downloading of pictures, music, and other
data without requiring the original host device (such as a digital camera or MP3
player), and without any additional drain on its batteries.
MultiMediaCards are
commonly used in MP3
players and other
devices that require a
small form factor.
FLASH MEMORY KINGSTON TECHNOLOGY 11
kingston.com/flash
COMMITTED TO MEMORY
INTERFACE FLASH TYPE VOLTAGE PIN COUNT SIZE IN MM
Secure Digital NAND 2.7–3.3 Volts 9 32 x 24 x 2.1
(Built-in controller)
INTERFACE FLASH TYPE VOLTAGE PIN COUNT SIZE IN MM
MultiMediaCard NAND 3.3 Volts 7 32 x 24 x 1.4
(Built-in controller)
INTERFACE FLASH TYPE VOLTAGE PIN COUNT SIZE IN MM
SmartMedia NAND 3.3 and 5 Volts 22 45 x 37 x 0.76
(No built-in
controller)
8.0