What is NAND flash memory?

Non-volatile memory in which memory cells are connected in series. It is dense and easy to scale to large capacities, and is used in SSDs and memory cards.

NAND flash cell string Select WL0 WL1 WL2 WL3 Select To bit line To source line Memory cells in series NAND: few contacts, very dense; read by page NOR: cells in parallel, each readable directly, but larger

Field: SRAM and flash memory

NAND flash memory in the explanations

Questions that mention NAND flash memory (7)

  1. Compared with NOR flash, which is a characteristic of NAND flash memory?
  2. What is the unit in which data is erased in NAND flash memory?
  3. Which electron injection mechanism is mainly used for writing (programming) NAND flash memory?
  4. In NAND flash memory, what is needed to write new data to a page that already contains data?
  5. Which is closest to the typical endurance (number of rewrite cycles) of SLC NAND flash memory?
  6. What is the basic unit for reading and writing (programming) in NAND flash memory?
  7. In the memory semiconductor market, which two products account for most of the revenue?

Related terms

Garbage collection TLC (triple-level cell) Bit line SLC (single-level cell) Wear leveling Word line 3D NAND 6T SRAM cell Charge-trap cell Floating gate

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