Longsys FORESEE® eMMC is patented. The firmware in the eMMC controller is researched and developed independently by Longsys. The autonomous FW algorithm consists of: 1. IDA (Initial Data Acceleration) function; 2. Dynamic wear leveling algorithm; 3. ECC (Error Correction Code) mechanism; 4. Bad block management; 5. Power-loss safeguard.
Longsys is the largest supplier of embedded memory in the white brand market of tablet, smart phone and set-top box domestically, its market share is expanding stably and monthly supply is more than 10 million. The products of Longsys are widely used in major platforms like Intel, MediaTek, Allwinner, Amlogic, Spreadtrum, and RockChip, etc. With Longsys, customers can shorten the launch cycle of their products and reduce R&D costs. Meanwhile, Longsys has its own local testing team and professional FAE team, who provide 7*24 hour services to customers to effectively solve problems at code level.


Smart TV
Smart Phone
Set-top Box
Navigation System


  • Excellent compatibility and performance
  • High IOPS ensures the system fluency
  • Good data stability with high temperature treatment to adapt SMT process
  • Hardware and firmware customization
  • Cost effective
  • TS16949 compliance
  • Long-term spot


Product ModelDensitySpecificaionPackage
DimensionsOperating TemperatureStorage Temperature
NCEMASD9-08G8GBeMMC 5.0BGA15311.5mm*13.0mm*1.0mm -25°C~70°C-40°C~85°C
NCEMBSF9-16G16GBeMMC 5.0BGA16912.0mm*16.0mm*1.2mm-25°C~70°C-40°C~85°C
NCEMBD39-16G16GBeMMC 5.0BGA16912.0mm*16.0mm*1.2mm-25°C~70°C-40°C~85°C
NCEMBSF9-32G32GBeMMC 5.0BGA16912.0mm*16.0mm*1.2mm-25°C~70°C-40°C~85°C
NCEMBSF9-64G64GBeMMC 5.0BGA16912.0mm*16.0mm*1.2mm-25°C~70°C-40°C~85°C
NCEMBSF9-128G128GBeMMC 5.0BGA16912.0mm*16.0mm*1.2mm-25°C~70°C-40°C~85°C
NCEMAD7B-08G8GBeMMC 5.1BGA15311.5mm*13.0mm*1.0mm -25°C~70°C-40°C~85°C
NCEMAD6B-16G16GBeMMC 5.1BGA15311.5mm*13.0mm*1.0mm -25°C~70°C-40°C~85°C
NCEMAD6B-32G32GBeMMC 5.1BGA15311.5mm*13.0mm*1.0mm -25°C~70°C-40°C~85°C

Patent Number

  • Chinese patent:20111043007.5、201220563689.5、201310010956.5、201320054515.0、201320055817.X、201280003553.1、201320273789.9、201320376513.3、201310411218.1、201420149133.0、201520029674.4、201520031836.8
  • Taiwan patent:101107081、102206251、102206515、103208343

Customer Services

Longsys has its own local testing team and professional FAE team, who provide 7*24 hour services to customers and effectively solve problems at code level.

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