Moxa UC-8410A-T-LX [80/86] Btriple level cell tlc

UC-8410A Series Linux Software Extending the Lifetime of the SD Card

B-2

Overview

The UC-8410A-LX comes with an SD socket that can provide storage expansion, and you can even store the

operating system on the SD card, making it important to choose the best SD card for the UC-8410A-LX. Here

is some general information about SD cards that are currently available on the market.

SD Flash Types

Single-level-cell (SLC)

Single-level-cell (SLC) cards have the simplest operation of all flash type cards, in the sense that there is only

one bit per cell, and the firmware does not need to negotiate with the data in different levels and states. SLC

cards have a longer lifetime than other flash types.

Multi-level cell (MLC)

Multi-level cell (MLC) cards, as the name suggests, can store multiple bits per cell. The primary benefit of MLC

flash memory is the lower cost per unit of storage due to the higher data density.

Triple-level cell (TLC)

TLC flash (triple level cell flash) is a type of solid-state NAND flash memory that stores three bits of data per cell.

TLC flash is less expensive than single-level cell (SLC) and multi-level cell (MLC) solid-state flash memory, and

is commonly used in various consumer devices that use solid-state storage.

Comparison Table for Flash Types

Flash type SLC, Single Level Cell

(1 bit)

MLC, Multilevel Cell

(2 bits)

TLC, Triple Level Cell

(3 bits)

Bits per cell 1 2 3

Program/Erase cycles Generally 100000

write/erase cycles

Anywhere from 3000 to

15000 write/erase cycles

Anywhere from 1000 to

5000 write/erase cycles

Erase time Erase time: 1.5-2 ms Erase time: 2.5-3.5 ms Erase time: 4-5 ms

Operation scenario Industrial Commercial Commercial

We strongly recommend using SLC SD cards in the UC-8410A-LX computer.

Tips for Running GNU/Linux on an SD Card

Choosing an SLC SD Card

We strongly recommend using SLC SD cards in the UC-8410A-LX computer, since this type of card will usually

last longer than other types of cards.

Using a Larger Capacity SD Card

Using a larger capacity SD card provides more space for reading and writing data, and reduces the chance that

the same area of the card will be written over multiple times. Most GNU/Linux distributions for the

UC-8410A-LX can fit on a 4 GB card, but it is more advisable to use an 8 GB or even a 16 GB card.