DS1244P

256k NV SRAM with Phantom Clock

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Part Details

  • Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
  • 32k 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 28-Pin JEDEC Pinout
  • PowerCap Module Board Only
    • Surface mountable package for direct connection to PowerCap containing battery and crystal
    • Replaceable battery (PowerCap)
    • Pin-for-pin compatible with DS1248P and DS1251P
  • Available in Lead-Free Package
DS1244P
256k NV SRAM with Phantom Clock
DS1244, DS1244P: Typical Operating Circuit
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Hardware Ecosystem

Parts Product Life Cycle Description
Nonvolatile Timekeeping RAMs 1
DS9034PCX PowerCap with Crystal
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