Cards components selection matrix

Features

CompactFlash* microSD*
 Density 64 MB X  
128 MB X X
256 MB X X
512 MB X X
1 GB X X
2 GB X X
4 GB X  
Architecture MLC   X
SBC X X
Supply Voltage Vdd 3.3V/ 5V X  
2.7V to 3.6V   X
Interface ATA/ IDE X  
SD   X
Security Write Protection X  
CPRM Authentication   X
Form Factor CF Type I X  
microSD   X
Software SCFS X X
CF Tools 1.0 X  
CF ISP Loader 1.0 X