microSD - TransFlash |
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TrashFlash, formerly known as T-Flash, was introduced by SanDisk Corporation in 2004 as the world’s smallest memory card, approximately the size of a fingernail. TransFlash (microSD) was specifically designed for being used in mobile phones. Motorola was the first mobile phone manufacturer to adapt the TransFlash memory card standard.
In the 3rd quarter of 2005 TransFlash was adapted by the SD Card Association as the third form factor memory card in the Secure Digital family, after SD Memory Card and miniSD. After the adoption, TransFlash changed name to microSD. The microSD has exactly the same dimensions and specifications as the TransFlash and therefore both memory cards are completely compatible to each other.
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Today the microSD is the most common used memory card in mobile phones and the SD Card Association’s objective is to make microSD a de facto memory card standard for all mobile phones. All TransFlash and microSD cards always come with a SD Memory Card adaptor, which makes them compatible to all SD Memory Card slots. The microSD is about 10% in volume compared to SD Memory Card and about 30% compared to miniSD.
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Dimensions in mm/inch (H x W x D) |
11 x 15 x 1 - 0.43 x 0.59 x 0.04 |
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Storage capacity
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Storage capacity in |
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Data transfer speed
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Read
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Up to 10 MB/sec – 66 X
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Write |
Up to 10 MB/sec – 66 X |
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Copyright protection |
Yes |
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Write protection switch |
No |
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Operating voltage |
3.3V |
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Remarks |
TransFlash = microSD |
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Employed by |
Mobile phones |
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Adapters |
SD Memory Card |
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Expansion modules – I/O |
No |
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