Difference between revisions of "Template:Comparison of memory cards"

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Revision as of 14:36, 23 December 2011

Template:Tnavbar-header
Type MMC RS-MMC MMC Plus SecureMMC SD SDIO miniSD microSD
SD Socket Yes Mechanical adapter Yes Yes Yes Yes Electromechanical adapter Electromechanical adapter
Pins 7 7 13 7 9 9 11 8
Form factor shallow shallow/narrow shallow shallow deep (some) deep narrow/slim/shallow narrow/slim/extra shallow
Breadth 24 mm 24 mm 24 mm 24 mm 24 mm 24 mm 20 mm 11 mm
Width 32 mm 18 mm 32 mm 32 mm 32 mm 32 mm+ 21.5 mm 15 mm
Depth 1.4 mm 1.4 mm 1.4 mm 1.4 mm 2.1 mm (some) 2.1 mm 1.4 mm 1 mm
SPI mode Optional Optional Optional Yes Yes Yes Yes Yes
1-bit mode Yes Yes Yes Yes Yes Yes Yes Yes
4-bit mode No No Yes ? Optional Optional Optional Optional
8-bit mode No No Yes No No No No No
Interrupts No No No No No Optional No No
Max clock rate 20 MHz 20 MHz 52 MHz 20 MHz? 208 MHz 50 MHz 208 MHz 208 MHz
Max transfer 20 Mbit/s 20 Mbit/s 416 Mbit/s 20 Mbit/s? 832 Mbit/s 200 Mbit/s 832 Mbit/s 832 Mbit/s
Max SPI transfer 20 Mbit/s 20 Mbit/s 52 Mbit/s 20 Mbit/s 50 Mbit/s 50 Mbit/s 50 Mbit/s 50 Mbit/s
DRM No No No Yes Yes Template:N/A Yes Yes
User encrypt No No No Yes No No No No
Simplified spec Yes Yes No Not yet? Yes Yes No No
Membership cost JEDEC: $4400/yr, optional SD Card Association: $2000/yr, general; $4500/yr, executive
Specification cost Free ? Simplified spec: free
Full spec: free to members, $1000/yr to R&D non-members
Host license No No No No Yes $1000/yr
Card royalties Yes Yes Yes Yes Yes Yes +$1000/yr Yes Yes
Open source compatible Yes Yes Yes? Yes? Yes Yes Yes Yes
Nominal operating voltage 3.3V 1.8V/3.3V 1.8V/3.3V[1][2] 1.8V/3.3V 3.3V 3.3V 3.3V 3.3V
Type MMC RS-MMC MMC Plus SecureMMC SD SDIO miniSD microSD

Table data compiled mostly from simplified versions of MMC and SDIO specifications and other data on SD card and MMC association web sites. Data for other card variations is interpolated.

Capacity limit in all SD/MMC formats appears to be 128 GB in LBA mode (28-bit sector address).[citation needed]

References