Flash memory

Flash memory (flash drive) – it’s solid-state semiconductor rewritable volatile memory.

Different types of flash memory

Different types of flash memory

Retention of this type of memory is approximately 10 to 100 years. However, to record the flash memory can be a limited number of times (about one million cycles). Today is the most common flash memory, which can withstand a hundred thousand write cycles, but it is much more than can withstand CD-RW disc or a floppy.

Flash drives are widely used in various digital portable equipment, such as in cameras, smart phones, smartphones, MP3 players, PDAs, and many others. Such widespread use has been made possible thanks to the low power consumption and low cost Flash memory. Enjoy great popularity today flash drives with USB-input (flash).

Flash memory volume measured from kilobytes to tens and hundreds of gigabytes.

As the flash memory is working: the data are stored in some kind of array which comprises floating gate transistors (cells). Single-level cell is stored 1 bit of data, multi-level cells can remember more than one bit.

Basic types and kinds of flash drives:

  • CF – standard type of memory is used most often in professional photo and video equipment
  • MMCmicro – a memory card that is used in mobile devices
  • MicroSD – compact view flash drive used in mobile devices, communicators