Multi-level cell: Difference between revisions

Revision as of 02:10, 6 May 2021

Revision as of 09:32, 22 June 2021

Line 50:

== Quad-level cell ==

Memory that stores four bits per cell areis commonly referred to as '''Quad Level Cell''' ('''QLC'''), following the convention set by '''TLC'''. Prior to its invention, QLC referred to cells that can have sixteen voltage states, i.e. ones that store four bits per cell.

In 2009, Toshiba and [[SanDisk]] introduced [[NAND flash]] memory chips with quad-level cells, storing [[4-bit]] per cell and holding a capacity of 64{{nbsp}}Gb.<ref name="toshiba2009"/><ref>{{cite news |title=SanDisk ships world's first memory cards with 64 gigabit X4 NAND flash |url=https://www.slashgear.com/sandisk-ships-worlds-first-memory-cards-with-64-gigabit-x4-nand-flash-1360217/ |access-date=20 June 2019 |work=SlashGear |date=13 October 2009}}</ref>