3.3V 16Mb Nonvolatile SRAM

3.3V Nonvolatile SRAMs Provide Up to 16Mb Density

Please check latest availability status for a specific part variant.


The DS1270W 16Mb nonvolatile (NV) SRAMs are 16,777,216-bit, fully static, NV SRAMs organized as 2,097,152 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry that constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. There is no limit on the number of write cycles that can be executed, and no additional support circuitry is required for microprocessor interfacing.
DS1270W: Pin Assignment DS1270W: Pin Assignment Enlarge+

Key Features

  • Five years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Unlimited write cycles
  • Low-power CMOS operation
  • Read and write access times of 100ns
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
  • Optional industrial (IND) temperature range of -40°C to +85°C


  • Automated Test Equipment (ATE)
  • Automatic Utility Meter Reading
  • Building Energy Management (HVAC)
  • Cable Modems
  • Computers: Desktop, Workstation, Server
  • Digital Television (Receivers, Set-Top Boxes)
  • Modems (Analog, ISDN, DSL)
  • Network Hubs, Switches, Routers
  • Notebook Computers
  • Oscilloscopes
  • Printers and Faxes
  • Programmable Logic Controllers
  • Storage Systems
  • Test and Measurement Equipment

CAD Symbols and Footprints

  • DS1270W-100#
  • DS1270W-100IND#
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


    Related Resources

    Belle Isle 2020
    05/29/2020 - 05/31/2020, Detroit, MI
    2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.