What is tf card

tf card refers to Micro SD card; Micro SD card was originally called Trans-flash Card (TF card), and was officially renamed Micro SD Card in 2004. It was invented by SanDisk and is mainly used in mobile phones. ;Micro SD imitates the application model of SIM card, that is, the same card can be used in different models of mobile phones, so that mobile phone manufacturers no longer have to worry about the development and design of plug-in cards; Micro SD cards are enough to be called Mobile storage IC.

#The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

What is tf card?

TF card (TF card) generally refers to Micro SD card.

Micro SD Card, formerly known as Trans-flash Card (TF card), was officially renamed Micro SD Card in 2004. It was invented by SanDisk and is mainly used in mobile phones.

Before the launch of Micro SD, mobile phone manufacturers all used embedded memory. Although this type of module is easy to install, it has the problem of being unable to meet the actual trend demand-the capacity is limited and cannot be used anymore. There is room for upgrades. Micro SD imitates the application model of SIM cards, that is, the same card can be used in different models of mobile phones, so that mobile phone manufacturers no longer have to worry about the development and design of plug-in cards. Micro SD cards can be called removable storage ICs.

Micro SD card is an extremely small flash memory card. Its format is originated from SanDisk. Originally this memory card was called T-Flash, and later renamed Trans Flash; and was renamed Micro The reason for SD is because it was adopted by the SD Association (SDA). Other memory cards adopted by SDA include Mini SD and SD cards. It is mainly used in mobile phones, but due to its small size and increasing storage capacity, it has been used in GPS devices, portable music players and some flash memory disks. Its size is 15mmx11mmx1mm, which is almost the same size as a fingernail. It is the smallest memory card currently available. It can also be connected to the SD card slot through an SD adapter card. Currently, Micro SD cards provide capacities of 128MB, 256MB, 512MB, 1G, 2G, 4G, 8G, 16G, 32G, 64G, and 128G (during the MWC 2014 World Mobile Communications Conference, SanDisk broke the memory card's maximum capacity of 64GB). Traditionally, it has officially released a Micro SD A multi-function memory card jointly developed in August 1999 on the basis of MMCMulti MediaCard).

SD card is a new generation of memory device based on semiconductor flash memory. Due to its excellent characteristics such as small size, fast data transmission speed, hot-swappable, large capacity [6], it is widely used It is widely used in portable devices such as electronic dictionaries, mobile phones, digital cameras, and car navigation systems.

The SD card standard is a standard patented and authorized by the SD Card Association for removable storage devices. It is mainly used to formulate the overall dimensions, electrical interface and communication protocol of the card. [7] In the SD card 3.0 specification, the theoretical maximum capacity of the SD card can reach 2TB, and the theoretical maximum read and write speed can reach 104MB/s (in the latest 4.10 specification, the theoretical maximum read and write speed has been increased to 312MB/s) , and Micro SD card is the second smallest SD card among SD types, with a size of 15mm*11mm*1mm. If these advantages of SD cards can be applied to automated test systems, such as storing diagnostic test data and satellite payloads Information such as data and missile flight load data can provide a new feasible solution for data storage in current automated testing and control systems, and play an irreplaceable role in miniaturization, large capacity, and high-speed data storage. .

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