TDK SDG8B Series ユーザーズマニュアル

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• All specifications are subject to change without notice.

Equipped with SLC flash memory and 
highly reliable 2.5-inch IDE solid-state drive with TDK GBDriver RA8

1GB, 4GB, 8GB, and 16GB

TDK industrial SSD(Solid State Drive): the SDG8B Series are high-speed and highly reliable flash memory disk equipped with TDK’s own 

NAND-type flash memory controller IC, GBDriver RA8. The series features high-speed data access with effective reading and writing 

speeds of 45 MB/sec and 28 MB/sec, respectively, and has a powerful error-correcting ability that can be extended up to 15 bit/sector 

ECC, thereby achieving high data reliability. In addition, the SDG8B Series has TDK's proprietary algorithm that minimizes bit error (read 

disturb error) resulting from repetition of data reading, as well as the risk of data corruption (collateral data error) due to power-off during 

data writing; both features help provide perfect reliability.

Furthermore, the newly developed static wear leveling algorithm levels the erasing times of the flash memory in all areas of the memory; 

this function has considerably improved the rewriting life of the flash memory. The product also enables erasing times of all memory 

blocks to be obtained as SMART (Self-Monitoring & Analysis Reporting Technology) information, thus allowing flash life-span to be 

evaluated and detected quantitatively. With technical support by dedicated FAE, these SSD are ideal for industrial use and embedment.

• Equipped with TDK's proprietarily developed NAND controller IC 

GBDriver RA8

• Equipped with high-speed, highly durable SLC (Single Level 

Cell) NAND flash memory

∗1

• Compatible with PIO mode0-6/Multiword DMA mode0-4/Ultra 

DMA mode0-6 High-speed data access with reading and writing 

speeds of 45 MB/sec and 28 MB/sec, respectively

∗2

• Error-correcting ability: 8 or 15 bits/sec ECC (automatically 

selected by the flash memory's judgment)

• TDK's proprietary static wear leveling algorithm levels the 

erasing times of all the areas (blocks) of the equipped flash 

memory and considerably improves the rewriting life-span of the 

memory.

∗3

(As reference, the SDG8B SSD with a 16GB capacity can be 

rewritten (erased) 6.2 billion times. This is equivalent to 20-times 

rewriting (erasing) per second over a ten year life.)

∗4

• Perfectly prevents collateral errors; due to TDK's proprietary 

flash memory control system SSD is designed to have higher 

durability for system power-off.

• Supports SMART commands; histogram display of erasing 

times of all memory blocks enables memory life-span to be 

managed quantitatively.

• Equipped with a function to set the number of all sectors which 

allows customization of the number of logical blocks per sector 

allotted to the data area.

For example, decreasing the number of logical blocks can 

increase the possible erasing times of the flash memory, and for 

those applications that do not need a longer life, increasing the 

number of logical blocks can increase the memory capacity to 

the maximum. CHS parameters can also be customized.

• Supports security functions based on ATA standards. Customers 

can set or cancel passwords to prevent falsification of leaking of 

personal and confidential information.

• Dedicated FAE (Field Application Engineer) system provides 

speedy and reliable solutions e.g. system compatibility 

verification and customizing.

• Complies with RoHS Directives as a solid-state drive. The 

components, lead terminals, etc. are all free from hazardous 

substances prohibited by the RoHS Directives of the EU 

(European Union). Therefore, the product can be safely used 

overseas.

∗1

 A product equipped with MLC (Multi Level Cell) NAND can be provided 

on request.

∗2

Dependent on flash memory connection configuration and system 
environment.

∗3

 The scope of static wear leveling execution can be customized. (Outside 

the scope of static wear leveling execution, dynamic wear leveling is 
executed).

∗4

 This applies to a product equipped with an SLC flash memory with a 

structure of 4KB/page.

• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific 

bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.