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DS1371
I²C, 32-Bit Binary Counter Watchdog Clock

Industry's Lowest-Cost Single-Supply Binary Timekeeper for Ultra-Low-Power Applications


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Description
FULL DATA SHEET (PDF, 1.2MB)
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The DS1371 is a 32-bit binary counter that is designed to continuously count time in seconds. An additional counter that can generate a periodic alarm or serve as a watchdog timer is also provided. If enabled as a watchdog timer, the watchdog strobe input pin provides a hardware reset of the counter. If disabled, this counter can be used as 3 Bytes of general-purpose RAM. A configurable output can be used as an interrupt or provide a square wave at one of four selectable frequencies. The device is programmed serially through a I²C bidirectional bus.

Key Features   Applications/Uses
  • 32-Bit Binary Counter
  • 24-Bit Binary Counter Provides Periodic Alarm, Watchdog Timer, or RAM
  • Strobe Input to Reset Watchdog Timer
  • Single Output Configurable as Interrupt or Square Wave
  • I²C Serial Interface
  • Low-Voltage Operation
  • Operating Temperature Range: -40°C to +85°C
  • Available in 8-Pin µSOP

 
  • Elapsed Time Measurements
  • Point-of-Sale Equipment
  • Portable Instrumentation
  • Servers

    Key Specifications:   Timekeeping & Real-Time Clocks
    Part Number Functions Time Format (hh = sec/100) Date Format Interface Supply Voltage (V) Time- keeping Current (typ) (nA) CL, Load Capacitance (pF) Memory Type Number of Time of Day Alarms Price**
    DS1371 
    Elapsed Time Counter
    Binary Binary I2C 2
    3
    3.3
    5
    800 6 None 1 $0.88 @ 1k
    See All Timekeeping & Real-Time Clocks (86)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    2007-07-09
    This page last modified: 2007-07-31



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