MLC

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MLC

(MultiLevel Cell) A NAND flash memory technology that stores more than one bit per cell. The original "single level cell" (SLC) flash memory uses one voltage threshold to define the two states of the bit (0 or 1). A multilevel cell (MLC) stores two bits per cell, while triple level (TLC) stores three, and quad level (QLC) stores four. All of this is accomplished by detecting different voltage levels (see below). However, the more bits per cell, the less longevity of the drive (see SSD write cycle). See NAND flash, StrataFlash and TRIM support.

Consumer MLC (cMLC) and Enterprise MLC (eMLC)
MLC generally refers to consumer MLC (cMLC), while enterprise MLC (eMLC) chips provide greater durability for servers that handle huge volumes of reads and writes. Enterprise MLC features faster transfer rates along with extensive error detection and correction.

Even More Cells - From 2D to 3D
Multilevel cell technology doubled, tripled and quadrupled the bits per cell; however, moving from 2D single layer flash to 3D layers dramatically increased storage capacity (see NAND flash).
Cell    No. of   No. ofType     Bits    ValuesSLC       1        2

  MLC/eMLC  2        4

  TLC       3        8

  QLC       4       16


Triple Level Cells in 3D
These solid state drives (SSDs) from Kingston Technology use flash chips with triple level cells in a 64-layer 3D architecture (see NAND flash). See Mini PCI Express.
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References in periodicals archive ?
Distribution and Morphology Change of MLCs in the Spiral Ligament of Mouse Cochlea during Development.
Lahore -- Police obtained the MLC from the doctors of the injured in the Model Town tragedy after seven and eight days of the occurrence of the incident while the condition of the wounds and injured can completely change after six hours.
MLCS includes four primary components: phased array antennas, integrated high performance low cost CDL radios, system controller, and a next generation Crypto system.
Hitomi Tobe, a 20-year Service Commendation Award recipient and NAVSUP FLC Yokosuka Command Evaluation Management Analyst, echoed similar sentiments, stating that MLC service is extremely important for continuous operations and support for all U.S.
The exhausted MLC fainted soon after ( picture 5 ) and had to be taken to the hospital.
"We individualize programming," says Richard MacIntire, President of MLCS, who he has spent 15 years of his 30-year career working with teenagers and adults with special needs at MLCS.
The Telangana Congress on Monday decided to boycott the MLC election scheduled for today, as it accused the ruling TRS and KCR of poaching four of its MLAs and a TDP legislator.
Summary: Hyderabad (Telangana) [India], Jan 16 (ANI): The Telangana Legislative Council on Wednesday notified that three MLCs, who belong to TRS party, were disqualified from the Legislative Council.
Rao's statement came after four out of six Congress Members of Legislative Council (MLCs) on Friday defected to the ruling Telangana Rashtra Samithi (TRS) that emerged victorious in the recently concluded state Assembly elections.
Summary: Bengaluru (Karnataka) [India], Nov 21 (ANI): A First Information Report (FIR) was registered against eight Members of Legislative Councils (MLCs) of Congress and Janata Dal (Secular) in the Vidhana Soudha police station on Wednesday for allegedly submitting fake reimbursement bills in the 2016 Bengaluru Mayor polls.
28 (ANI): Bihar Congress on Wednesday suspended party's four Members of Legislative Assembly (MLCs).