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DS1248P - 1024K NV SRAM

Download the DS1248P datasheet PDF. This datasheet also covers the DS1248 variant, as both devices belong to the same 1024k nv sram family and are provided as variant models within a single manufacturer datasheet.

General Description

The DS1248 1024K NV SRAM with phantom clock is a fully static, nonvolatile RAM (organized as 128K words by 8 bits) with a built-in real-time clock.

The DS1248 has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition.

Key Features

  • Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years.
  • 128K x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM.
  • Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data.
  • Watch Function is Transparent to RAM Operation.
  • Automatic Leap Year Compensation Valid Up to 2100.
  • Full 10% Operating Range.
  • Over 10 Years of Data Retention in the Absence of Power.
  • Lithium Ene.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DS1248-MaximIntegrated.pdf) that lists specifications for multiple related part numbers.

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
DS1248 1024K NV SRAM
DS1243Y 64K NV SRAM
DS1244 256K NV SRAM
DS1244P 256K NV SRAM
DS1245AB 1024k Nonvolatile SRAM
DS1245W 3.3V 1024k Nonvolatile SRAM
DS1245Y 1024k Nonvolatile SRAM
DS1249AB 2048k Nonvolatile SRAM
DS1249Y 2048k Nonvolatile SRAM
DS1210 Nonvolatile Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-6078; Rev 11/11 DS1248/DS1248P 1024K NV SRAM with Phantom Clock FEATURES  Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years  128K x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM  Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data  Watch Function is Transparent to RAM Operation  Automatic Leap Year Compensation Valid Up to 2100  Full 10% Operating Range  Over 10 Years of Data Retention in the Absence of Power  Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time  DIP Module Only Standard 32-Pin JEDEC Pinout  Underwriters Laboratories (UL) Recognized (www.maxim-ic.