Delkin Blog

Comparing SLC vs. MLC vs. TLC

 

When choosing flash memory, one of the choices you will need to make is between SLC vs. MLC vs. TLC flash. Although these grades of NAND flash storage work on the same principles, the way they save data is different, which makes each one best suited for different kinds of applications. Here is a look at how these flash memory grades differ and which applications each will perform best.

 

SLC

Single-level cell flash, or SLC, is a type of NAND flash in which one bit of data is stored per cell. Storing only one bit of data per cell makes SLC flash exceedingly reliable, since there is less risk of data loss when only a single bit has to be written on each cell. For this reason, SLC flash is typically used in industrial applications that operate in demanding conditions and that have a heightened need for data security. Because of the increased reliability and large manufacturing geometries, SLC is the most costly kind of flash storage on the market. For industrial applications, the additional expenditure is typically worth the investment for the increase in data security and rugged operation capabilities.

 

MLC

MLC stands for multi-level cell flash. With this kind of flash storage, two bits of data are stored on each cell. In order to store two bits of data, MLC flash has to use four different voltage states. Because of the number of voltage states used, MLC flash is inherently more prone to read disturbs, data corruption, and power loss. Cell cross talk is also a concern. For these reasons, MLC flash is generally found in commercial grade products, where the need for data protection is not as great. The lower price of MLC flash makes it a good fit for products with price-driven demand.

 

TLC

TLC, or triple-level cell NAND flash, stores three bits of data per cell. There are eight voltage states used in TLC flash, which further increases the risk of data loss and cell cross talk. However, the price point of TLC flash is the lowest of these three forms, which makes it ideal for consumer grade products. Many camera cards and consumer USBs rely on TLC for their memory needs.

 

Choosing the appropriate flash memory for your application is challenging. Delkin’s team can help you weigh up SLC vs. MLC. vs. TLC for your specific needs. Contact us today with your questions.

 

Contact

  • This field is for validation purposes and should be left unchanged.

Related Posts

Comparing Solid State Storage Companies

  Not all solid state storage companies are created equally. Although it can be tempting...

Delkin Devices and the Industrial Applications Market: Storage Solutions for Industrial Environments

  At Delkin, we serve a diverse industrial applications marketplace with wide-ranging storage needs. The...

Guide to Embedded Multimedia Card (eMMC)

  Embedded Multimedia Card (eMMC) General Description Designed for a wide range of applications in consumer...

Technical Success Stories: Delkin Matches Product & Testing to Unique Environmental Requirements

  CompactFlash as a form factor has been a stable, industrial, storage medium used by...

Managing Errors in NAND Flash Based Devices

    General In today’s systems, having a Nor flash (protected) bios supporting system boot from USB...

Embedded Computing
The Benefits of Using Industrial Flash Storage for Embedded Computing Applications

    Industrial grade flash storage devices have a higher endurance, a locked BOM, longer life...

Industrial IoT Applications Requiring Industrial Flash Storage

  Across the globe, many industries are on the crossover of revolution and many manufacturers...

Answering Common Questions about SMART SSDs

 SMART is a critical technology for SSDs, or solid-state drives. It makes locating the...

Medical Device Flash Storage: Factors to Consider

  Hospitals and other medical organizations have grown increasingly reliant on technology to deliver patient...

Digital Signage
Technical Success Story: Digital Signage Life Cycle Management

  Digital signage is a critical way of conveying information for a business or an...