匯流排介面 |
SD標誌 |
匯流排標誌 |
匯流排速度 |
版本 |
---|---|---|---|---|
Normal Speed |
— |
12.5MB/s |
1.01 |
|
High Speed |
25MB/s |
2.00 |
||
UHS-I |
50MB/s(SDR50, DDR50) |
3.01 |
||
UHS-II |
156MB/s(FD156) 312MB/s(HD312) |
4.00/4.10[3] |
||
UHS-III |
312 MByte/s (FD312) |
6.0[4] |
最低寫入速度 |
Speed Class |
UHS Speed Class |
Video Speed Class |
應用 |
---|---|---|---|---|
2 MB/s |
- |
- |
標準畫質拍攝 |
|
4 MB/s |
- |
- |
高畫質拍攝 |
|
6 MB/s |
- |
|||
10 MB/s |
全高畫質拍攝 (HS), 實時廣播及高畫質影片 (UHS) |
|||
30 MB/s |
- |
4K影片 60/120 fps (UHS) |
||
60 MB/s |
- |
- |
8K影片 60/120 fps (UHS) |
|
90 MB/s |
- |
- |
Application Performance Class |
Minimum sustained sequential writing speed |
Minimum random read |
Minimum random write |
---|---|---|---|
10 MB/s |
1500 IOPS |
500 IOPS |
|
4000 IOPS |
2000 IOPS
|
SMI Micro SD Controller
AS Micro SD Controller
ref:
http://www.asolid-tek.com/products.php?lang=2&cat=1
http://www.siliconmotion.com/A3.2_Partnumber_Detail.php?sn=6
https://zh.wikipedia.org/wiki/SDXC