MICRO SD

MICRO SD
microSD - TransFlash
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.




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.







Dimensions in mm/inch (H x W x D) 11 x 15 x 1 - 0.43 x 0.59 x 0.04

Storage capacity
16MB - 1GB



Storage capacity in

Data transfer speed



Read
Up to 10 MB/sec – 66 X

Write Up to 10 MB/sec – 66 X

Copyright protection Yes

Write protection switch No

Operating voltage 3.3V

Remarks TransFlash = microSD

Employed by Mobile phones

Adapters SD Memory Card

Expansion modules – I/O No