Japan's Hardware SENSE by yourDragonXi Δ 26th of May 2014 Ω 10:42 AM

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«Hardware Sensing	Θ	Θ
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~ TDK

»TDK

TDK launches sng4a series of solid state drives with m.2-form-factor support
ξ NAND flash memory modules enable storage capacities of up to 64 GB with SLC type NAND flash memory
ξ more emphasis on reliability, since products often have to be operable for periods of ten years or more
ξ TDK develops SSD controller chips in-house
ξ GBDriver RS4 developed by TDK
ξ driver's power interruption tolerance algorithm makes the new M.2 format SATA Flash Drives resistant against power supply problems
ξ a highly desirable characteristic for demanding industrial applications

Main features

1. Uses GBDriver RS4 NAND Flash Memory Controller Developed by TDK
ξ drives use the GBDriver RS4 series developed by TDK

2. High-Speed Access
ξ compatible with SATA Gen. 1 (1.5 Gbps), Gen. 2 (3.0 Gbps), and NCQ commands
ξ supports read access speeds up to 215 MByte/second and
ξ write access speeds up to 95 MByte/second*2 with no DRAM or other cache while maintaining high reliability

3. Global Static Wear Leveling
ξ counts the number of times each memory block is programmed (erased) and replaces all blocks uniformly
ξ static blocks such as for the OS are also periodically leveled,
ξ which drastically improves the lifespan of the installed flash memory
ξ the range for static wear leveling can be freely set
ξ in this case, dynamic wear leveling is used for other areas

4. Improved Power Interruption Tolerance
ξ reduces the risk of collateral data errors such as corruption of data other than the data being written
ξ if power is interrupted when writing data

5. Enhanced ECC Function
ξ 71 bits per 512 Bytes (option)

6. Read Retry Function

7. Data Randomizer Function
ξ data patterns are automatically randomized during the write process
ξ to minimize the risk of bit errors due to writing the same data repeatedly

8. Error Recovery
ξ automatically corrects bit errors (read disturbance errors) that can occur when data are read repeatedly

9. Security Functions

A) AES 128-bit encryption
ξ automatically encrypts data when writing to the NAND flash memory

B) Protection function
ξ allows to set and remove a password to implement independent authentication and protect important data

C) TDK proprietary security function
ξ mutual authentication of host and SSD makes it possible to block access and response
ξ by unauthorized third parties through spoofing etc

10. ATA Trim Command
ξ allows complete data erasure which is vital when replacing or discarding a drive

11. Support for SMART Command
ξ allows for easy determination of the flash memory status and facilitates appropriate lifespan management
ξ proprietary software from TDK can be used for this purpose free of charge

12. Solution Support
ξ including dispatch of field application engineers and support for implementation of reliability monitoring functions

Contact for customers
Mr. Shunichi. Hanafusa
shanafus@jp.tdk.com

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