Template:Comparison of memory cards
Revision as of 01:40, 9 February 2011 by imported>Sbmeirow (Minor cleanup)
| Type | MMC | RS-MMC | MMC Plus | SecureMMC | SD | SDIO | miniSD | microSD | |
|---|---|---|---|---|---|---|---|---|---|
| SD Socket | Yes | Mechanical adapter | Yes | Yes | Yes | Yes | Electro-mechanical adapter | Electro-mechanical 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 | Optional[citation needed] | |
| 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 | |
| Interrupts | No | No | No | No | No | Optional | No | No | |
| Transfer clock | 0–20 MHz | 0–20 MHz | 0–52 MHz | 0–20 MHz? | 0–25 MHz - 0–50 MHz | 0–25 MHz | 0–25 MHz? | 0–50 MHz | |
| Max transfer | 20 Mbit/s | 20 Mbit/s | 416 Mbit/s | 20 Mbit/s? | 100 Mbit/s - 200 Mbit/s | 100 Mbit/s | 100 Mbit/s | 200 Mbit/s | |
| Max SPI transfer | 20 Mbit/s | 20 Mbit/s | 52 Mbit/s | 20 Mbit/s | 25 Mbit/s | 25 Mbit/s | 25 Mbit/s | 25 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 | $2500/yr (not required) | $2000/yr (General), $4500/yr (Executive) | |||||||
| Specification cost | free since version 4.3 | ? | ? | Member | Member | Member | Member | ||
| Host license | No | No | No | No | Yes: $1000/yr + membership cost | ||||
| Memory card royalties | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| I/O card royalties | Template:N/A | Template:N/A | Template:N/A | Template:N/A | Template:N/A | Yes: $1000/yr + membership cost | Template:N/A | Template:N/A | |
| 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] | ||||
| 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[citation needed] SD/MMC formats appears to be 128 GB in LBA mode (28-bit sector address).