Silicon Motion TechnologySM681GEE AGST | PCIe, 256GB, BiCS5 TLC NAND, DRAM-Less, I-temp, TLC modeDisques SSD

The FerriSSD is the ideal boot BGA-SSD for a wide range of embedded applications that features SATA/PCIe interface with blazing speed and unsurpassed reliability. Armed with SMI proprietary technologies and programmable firmware, the FerriSSD is the ultimate non-volatile storage solution that is easy to design and manufacture.

The PCIe NVMe FerriSSD® family consists of SM689 supporting PCIe Gen3 x4 NVMe 1.3 and SM681 supporting PCIe Gen3 x2 NVMe 1.3 designed optimally for high-performance mission critical applications. By combining industry proven controller technology, NAND flash and passive components into a small single BGA package, PCIe NVMe FerriSSD® simplifies design efforts, reduces time-to-market while protecting from NAND technology migration concerns.

The SM681 DRAM-Less series feature the best balance of saving/performance - cost saving from eliminating DRAM while maintaining DRAM-like performance via HMB (Host Memory Buffer). Both available in 3D TLC/SLC modes, the unique flexible design can support multiple capacity configurations ranging from 5GB to 480GB and include enterprise-grade advanced data integrity and reliability capabilities using Silicon Motion's proprietary end-to-end data protection, ECC and data caching technologies. Key Features End to End Data Path Protection SMI’s PCIe NVMe FerriSSDs incorporate full data error detection with recovery engines to provide enhanced data integrity throughout the entire Host-to-NAND-to-Host data path. The PCIe NVMe FerriSSD® data recovery algorithm can effectively detect any error in the SSD data path, including hardware (i.e. ASIC) errors, firmware errors and memory errors arising in SRAM, DRAM or NAND.

Why Ferri-UFS®

• Lower total cost of ownership & Easy to use
  • Small footprint & Plug and Play: Only requires format/fdisk prior to use
  • Rugged & Reliable: No moving parts
  • Cost saving with low density FerriSSD: HDD are typically > 500GB capacity
• Eliminate down time
  • IntellligentScan™/DataRefresh™ : Supports self-scanning w/ proactive data protection
  • IntelligentLog™ : Enables self-monitoring, analysis and AER (Advance Error Warning)
  • Field programmable firmware available
• Full design service from design to after sales support
  • SSD life simulation and validation
  • Fixed BOM and firmware from ordering part number
  • Dedicated technical support team

Key Features

• Solid State Drive PCIe Gen3 x 2
• 20mmx16mm BGA
• DRAM-Less
• 256GB, BiCS5 TLC NAND I-temp
• TLC mode
• High-Efficiency Error Correction
  • Advanced Hardware LDPC (ECC) Engine
  • StaticDataRefresh™ and EarlyRetirement™ technologies ensure the data reliability
• Power Efficiency
  • Dynamic power management technology enables multiple power saving modes
• Advanced Global Wear Leveling to Enhance Reliability
  • Even distribution of program / erase cycles across all NAND flash chips
  • Maximizes the lifespan with low Write Amplification Index (WAI)
• Robust Data Protection
  • Advanced system level protection against unstable power
  • Software / hardware write protect option
  • Multiple user data security zones
  • Software / hardware secure erase function
  • PowerShield and DataPhoenix technologies support power-down data protection

For industrial, commercial and automotive applications that require high-performance, customized single-chip SSDs for small footprint equipment operating in demanding environments.

Technologies

FerriSSD®: End to End Data Path Protection to Guarantee Data Integrity

Silicon Motion's FerriSSDs incorporate full data error detection with recovery engines to provide enhanced data integrity throughout the entire Host-to-NAND-to-Host data path. The FerriSSD® data recovery algorithm can effectively detect any error in the SSD data path, including hardware (i.e. ASIC) errors, firmware errors, and memory errors arising in SRAM, DRAM, or NAND.

FerriSSD®: NANDXtend® ECC technology to Extend Operating Lifetime

Conventional SSDs employ standard BCH and RS ECC (error correction coding) engines to initiate first-level correction using NAND shift-read-retries. In addition to this first-level error correction, FerriSSDs also implement a highly efficient second-level correction scheme using an LDPC (low-density parity-check) code and an advanced RAID algorithm (a highly efficient redundant backup) to reduce potential dPPM at customer site while extending the service life of SSD.

IntelligentScan™ and DataRefresh™ to Enhance Data Retention in High Temperature Environment

Silicon Motion's proprietary IntelligentScan function will activate automatically to scan recharge, repair or retire the cell block (DataRefresh) according to the host behavior and working environment (eg. ambient temperature). As a result of the combination of IntelligentScan and DataRefresh, Ferri-UFS® can effective prolong its service life much beyond typical NAND specifications.

Ferri Family Enabling the NAND Flash Storage in Comprehensive Applications

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