Compact
flash
CompactFlash
cards were developed by Sandisk in 1994, and they are different from SmartMedia
cards in two important ways:
1) They are
thicker.
2) They utilize a controller chip
CompactFlash
consists of a small circuit board with Flash-memory chips and a dedicated
controller chip, all encased in a rugged shell that is several times thicker
than a SmartMedia card. As shown below, CompactFlash cards are 43 mm wide and
36 mm long, and come in two thicknesses: Type I cards are 3.3 mm thick, and
Type II cards are 5.5 mm thick.
The increased
thickness of the card allows for greater storage capacity than SmartMedia
cards. CompactFlash sizes range from 8 MB to 192 MB. The onboard controller can
increase performance, particularly on devices that have slow processors. The
case and controller chip add size, weight and complexity to the CompactFlash
card when compared to the SmartMedia card
[ Picolo appunti ]
