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CompactFlash revision 3.0 increases data transfer rate
Posted on 10-Jan-2005 01:29. | Tags Filed under: News.

The CompactFlash Association (CFA) has announced the approval and availability of the CF+ & CompactFlash Specification Revision 3.0. Revision 3.0 increases the CompactFlash interface data transfer rate from 16MB/sec to 66MB/sec, while maintaining forward and backward compatibility with old and new host systems.

Mr. Shigeto Kanda of Canon and the CFA chairman of the board said: "The development of the CompactFlash 66MB/sec interface means that the CompactFlash interface will not restrict the sustained data transfer rate of CompactFlash cards in the near future. Having the fastest interface data rate of any flash cards is a significant step for CompactFlash. Data write performance of digital SLR cameras as well as other high-performance cameras will not be limited by the flash card interface."

DMA interface mode is also included and reduces the processor power required to manage the CompactFlash data transfers. Ultra DMA 33 and UltraDMA66 interface modes will increase the CompactFlash interface data transfer rate to 66MB/sec. Both of these DMA interface modes are well defined and tested by their usage on IDE hard disk drives.

Faster PCMCIA ATA Memory and I/O modes have also been added and can provide interface transfer rates up to 25MB/sec.

CompactFlash card slots are in over 325 digital cameras, over 150 handheld/palm-size PCs and over 410 other electronic platforms including heart monitors, defibrillators, printers, MP3 players, voice recorders, embedded computers, etc. than any other small form factor card.

CompactFlash cards are currently available up to 8GB. In addition to CompactFlash data storage cards, there are CF cards that provide I/O capability. VGA, Ethernet, modem, serial, parallel, digital phone, GSM, Bluetooth, Ethernet wireless Wand & laser barcode scanners, finger print scanners, TV and GPS CF+ cards are all available.

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