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Maxim > Products > [Real-Time Clocks] 
DS1689, DS1693
3 Volt/5 Volt Serialized Real Time Clock with NV RAM Control

Recommended Upgrades for New Designs
Part Number Replacement Explanation
DS1689 DS1687 There is no direct replacement. The DS1687 has 242 bytes of RAM.
DS1689 DS17287 There is no direct replacement. The DS17x87 has 2K, 4K, and 8K bytes extended RAM.
DS1689 DS17487
DS1689 DS17887
DS1693 DS1687 There is no direct replacement. The DS1687 has 242 bytes of RAM.
DS1693 DS17287 There is no direct replacement. The DS17x87 has 2K, 4K, and 8K bytes extended RAM.
DS1693 DS17487
DS1693 DS17887
DS1689S DS1687 There is no direct replacement. The DS1687 has 242 bytes of RAM.
DS1689SN+ DS1687
DS1689S+ DS1687
DS1689SN DS1687
DS1693+ DS1687


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Data Sheet
FULL DATA SHEET (PDF, 600kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Application Notes
  		• Application Note 58: Crystal Considerations with Dallas Real-Time Clocks (RTCs) - DS1689
  		• Application Note 499: Using the Multiplex Bus RTC Extended Features - DS1689, DS1693
  		• Application Note 504: Design Considerations for Dallas Semiconductor Real-Time Clocks - DS1689, DS1693
  		• Application Note 505: Lithium Coin-Cell Batteries: Predicting an Application Lifetime - DS1689
  		• Application Note 701: Using the DS32kHz with Dallas Real-Time Clocks - DS1689
  		• Application Note 1145: Interface a Multiplexed-Bus Real-Time Clock to a µP With Separate Address and Data Buses - DS1689, DS1693
  		• Application Note 3778: Problems and Solutions for Adjusting to Changes in Daylight Saving Time - DS1689, DS1693

    Evaluation Kits
    none

    Design Guides
  		• Real-Time Clocks (PDF)

    Reliability Reports
  		• Reliability Report: DS1689.pdf DS1693.pdf
  		• Underwriters Laboratories (UL®) Recognized

    Software/Models
    none

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    2005-11-28
    This page last modified: 2007-06-19


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