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DS1372
I²C, 32-Bit, Binary Counter Clock with 64-Bit ID

Ideal Clock for Portable Media Players


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 176kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The DS1372 is a 32-bit binary up counter and 24-bit down counter with a unique 64-bit ID. The counters, ID, configuration, and status registers are accessed using an I²C serial interface. The DS1372 includes a SQW/active-low INT open-drain output that can output either a square wave at one of four predefined frequencies, or it can output an active-low signal when the 24-bit down counter reaches 0.

Key Features   Applications/Uses
  • Compliant with Microsoft Windows Media® DRM 10 for Portable Devices
  • 32-Bit Binary Counter
  • Programmable Alarm
  • 64-Bit Factory-Programmed ID
  • Interrupt Output
  • I²C Serial Interface
  • Two Selectable I²C Addresses
  • 2.4V to 5.5V Operating Voltage Range
  • 1.3V to 5.5V Timekeeping Operating Range
  • -40°C to +85°C Operating Temperature Range
  • 8-Pin µSOP

 
  • Portable Audio and Video Players

    Key Specifications:  Timekeeping & Real-Time Clocks
    Part Number Functions Date/ Time Format Interface VSUPPLY
    (V)
    Time Keeping Current
    (nA)
    CL
    (pF)
    Memory Type Time of Day Alarms Price
    hh = sec/100 typ See Notes
    DS1372  Elapsed Time Counter Binary I2C
    3
    3.3
    5
    400 12.5 None 1 $0.98 @1k
    See All Timekeeping & Real-Time Clocks (80)

    Diagram
    DS1372: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 517: DS1371/DS1372/DS1374 32-Bit Binary Counter Time Conversion - DS1372

    Design Guides
  • Real-Time Clocks (PDF)

    Reliability Reports
  • Reliability Report: DS1372.pdf

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    DS1372 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS1372U+  
    Active µMAX;8 pin;16.2 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1372U+T&R    
    Active µMAX;8 pin;16.2 mm²
    Outline Drawing: 21-0036 (PDF)
    Land Pattern: 90-0092 (PDF)
    Use pkgcode/variation: U8+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2007-08-09 
  • Product Ad: Download

    Related Products
    DS1371 I²C, 32-Bit Binary Counter Watchdog Clock

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     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
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     Price and Availability 
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    2007-08-07
    This page last modified: 2007-10-11


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