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固态硬盘数据恢复与开卡
SSD固态硬盘主控芯片: SM2246XT SM2258XT PS3111 SM2246XT SM2246XT

SM2259 / SM2259XT

The SM2259 features best-in-class performance and low power consumption for mainstream SATA SSDs, while

http://pan.dashupc.com:89/?dl=67711e842fcea2e7392175724ffdd290

SM2259_XT_PB_EN_201910
the DRAM-less SM2259XT reduces BOM cost without compromising performance while enabling 2.5″, 1.8″,
slim SATA(MO-297), mSATA(MO-300) and M.2 form factor SSDs.
The SM2259 and SM2259XT are both 4-channel high-performance SATA 6Gb/s SSD controllers ideally suited
for cost-effective, small form factor and low power SSDs for Enterprise PCs, Consumer PCs, CFast cards and
industrial storage. Its ultra-low power consumption effectively extends battery life and optimizes user
experience. The SM2259 and SM2259XT are complete merchant ASIC/firmware solution supporting 3D NAND
Flash from all major NAND suppliers.
Leveraging Silicon Motion’s proprietary NANDXtend? error-correcting code (ECC) technology, the SM2259 and
SM2259XT enhance the endurance and retention of 3D NAND. Besides, SM2259 and SM2259XT include such
enterprise features such as end-to-end data path protection and SRAM ECC capabilities to ensure the data
integrity and reliability. SM2259 and SM2259XT also features advanced Direct-to-TLC and SLC
Caching algorithms for optimal sustained performance with TLC and QLC NAND.
Host Interface
Supports SATA interface rate of 6Gb/s
Compliant with Industrial Standard SATA Revision 3.1
Compliant with Industrial Standard ATA/ATAPI-8 and
ACS-3 command
SATA 6Gb/s SSD Controller
with NANDXtend? Technology
KEY FEATURES
SM2259 / SM2259XT
NANDXtend? ECC Technology
1KB codeword LDPC Embedded
programmable RAID
Supports all QLC and TLC NAND
Datapath Protection
End to end data protection
SRAM ECC
Optimal Sustained Performance
Direct-to-TLC and SLC Caching
Host Interface
ATA Protocol
NAND Flash Channel
CE/Channel
Performance
DRAM Interface
NAND Flash Support
Security
Temperature Support
Package
SATA 6Gb/s
ATA-8
4
8
– Sequential Read 560 MB/s
– Sequential Write 520 MB/s
– Random Read: 100K IOPs
– Random Write: 90K IOPs
Supports DDR3/3L/4 and LPDDR3
The SM2259 and SM2259XT employs the company’s
proprietary NANDXtend? ECC technology consisting of
LDPC hard and soft decoding as well as RAID protection that
together enhance the P/E cycles of 3D NAND –
extending the SSD lifespan and ensuring data integrity. The
new generation NANDXtend? includes 2KB LDPC engine
with advanced firmware algorithm delivers higher power
efficiency, decoding efficiency and correction capability to
maintain consistent data throughout and provide a better
user experience, even as error bits increase throughout the
product lifecycle of NAND Flash.
NANDXtend? Technology
SPECIFICATIONS
New
New
New
SM2259
SATA 6Gb/s
ATA-8
4
4
– Sequential Read 560 MB/s
– Sequential Write 520 MB/s
– Random Read: 75K IOPs
– Random Write: 75K IOPs
DRAM-less
SM2259XT
Real time full drive encryption with AES
TCG Opal protocol
Hardware SHA 256 and TRNG

c-temp: 0°C to 70°C
i-temp: -40°C to 85°C
336-ball TFBGA
2.5” PCB with SM2259
144-ball TFBGA
M.2 PCB with SM2259XT
Supports ONFI 4.0 and Toggle 2.0 interface
SM2259/XT-PB-201910
www.siliconmotion.com
? Copyright 2019 Silicon Motion, Inc.

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