TLC means three bits of information can be stored in each cell.
How does TLC work?Įvery flash memory microchip has hundreds of millions of cells, each of which, traditionally, has two possible states according to the presence, or not, of electrons on the microchip’s charge trap, with that state (one or zero) being the single bit of data stored in the cell on a single level in what’s known as single-level cell (SLC) memory. Samsung Electronics began mass-producing TLCs in 2010 and first used them in their 840 Series SSDs. Shortly thereafter, Samsung announced a type of NAND flash that can store three bits of information per cell and coined the term "Triple Level Cell" ("TLC"). Toshiba introduced memory cells with three levels in 2009.
Memory cells are the fundamental building blocks of computer memory. What is TLC flash used for?Ĭommon use cases for TLC flash include USB drives, enterprise- and consumer-grade solid-state drives (SSDs), and storage cards for digital cameras and mobile phones.Īs computer chip manufacturers reached the scalability limits of 2D, or single-layer, memory cells, they created 3D NAND flash, which stacks memory cells vertically on the chip to enable higher storage densities at a lower cost per bit and also improves flash endurance. The two main types of flash memory are NOR and NAND, named after the NOR and NAND logic gates. TLC is commonly used in flash memory, an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. TLC allows organizations to lower their data storage costs by packing more data into the same footprint. Triple-level cell (TLC) memory is a version of multi-level cell memory capable of storing three bits of information per memory cell. What is Triple-level Cell (TLC) Flash Memory and How Does It Work?
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