TLC (Triple-Level Cell)
STORAGE
Server
Technology
7/8/2025
STORAGE
Server
Technology
TLC (Triple-Level Cell) is a type of NAND flash memory in which each cell is capable of storing 3 bits of information, i.e. 8 different levels of charge. Due to this, TLC provides higher storage density and reduces manufacturing cost compared to single-level (SLC) and double-level (MLC) memory.
The main characteristics of TLC are:
- Capacity and cost: high storage density and lower price per gigabyte compared to SLC and MLC, making it popular in mass-market consumer SSDs and flash drives.
- Performance: read and write speeds are slower than SLC and MLC, especially when writing large amounts of data for long periods of time due to the more complex architecture and the need for precise charge level management.
- Durability: Program/Erase cycle life is approximately 1000-3000 cycles, which is less than SLC and MLC but sufficient for most consumer applications.
- Applications: widely used in consumer SSDs, flash drives and other devices where cost and capacity optimization with acceptable performance and durability are important.
In summary, TLC is a balanced solution for the mass market, providing a good balance of capacity, cost and performance, but is inferior to SLC and MLC in terms of speed and write life.