NAND flash memory can be sub-divided into 2 broad categories SLC and MLC.
SLC is an abbreviation of 'Single-Level Cell':
SLC memory stores one bit in each cell, leading to faster transfer speeds, lower power consumption and higher cell endurance. The only disadvantage of Single-Level Cell is the manufacturing cost per MB. Based on that, the SLC flash technology is used in high-performance memory cards.
MLC is an abbreviation of 'Multi-level Cell':
MLC memory stores three or more bits in each cell. By storing more bits per cell, a Multi-Level Cell memory card will achieve slower transfer speeds, higher power consumption and lower cell endurance than a Single-Level Cell memory card. The advantage of Multi-Level Cell memory card is the lower manufacturing costs. The MLC flash technology is used mostly in standard memory
devices. The Multi-Bit Cell, MBC, is a similar technology to the Multi-Level Cell but stores only two bits per cell.
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