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SATA 6Gb/s SSD Controller with NANDXtend™ Technology


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

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