Applications

Datasheet

ISL1209
Low Power RTC with Battery Backed SRAM and Event Detection

Typical Diagram

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Key Features

    • Real Time Clock/Calendar
      • Tracks Time in Hours, Minutes, and Seconds
      • Day of the Week, Day, Month, and Year
    • Security and Event Functions
      • Tamper detection with Time Stamp
      • Event Detection During Battery Packed or Normal Modes
      • Selectable Event Input Sampling Rates Allows Low Power Operation
      • Selectable Glitch Filter on Event Input Monitor
    • 15 Selectable Frequency Outputs
    • Single Alarm
      • Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
      • Single Event or Pulse Interrupt Mode
    • Automatic Backup to Battery or Super Cap
    • Power Failure Detection
    • On-Chip Oscillator Compensation
    • 2 Bytes Battery-Backed User SRAM
    • I2C Interface
      • 400kHz Data Transfer Rate
    • 400nA Battery Supply Current
    • Small Package
      • 10 Ld MSOP

Description

The ISL1209 device is a low power real time clock with Event Detect function, timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM.

Applications

    • Utility Meters
    • Set Top Box/Modem
    • POS Equipment
    • Network Routers, Hubs, Switches, Bridges
    • Cellular Infrastructure Equipment
    • Fixed Broadband Wireless Equipment
    • Test Meters/Fixtures
    • Vending Machine Management
    • Security and Anti Tampering Applications
      • Panel/Enclosure Status
      • Warranty Reporting
      • Time Stamping Applications
      • Patrol/Security Check (Fire or Light Equipment)
      • Automotive Applications

Alternatives

Design Tip

Which of your RTC devices will not enter a high current state upon power down, like the X1286?

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Is there somewhere I can find out what simulations and models (e.g. Spice, PSpice, IBIS) are available on your website?

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