Automatic CMOS Battery Back-Up Switch 8-Pin Metal Can

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  • Jameco Part no.: 2301879
  • Manufacturer: HARRIS EDUCATIONAL
  • Manufacturer no.: ICL7673ITV
  • HTS code: 8541500040
  • Web Exclusive
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Automatic CMOS Battery Back-Up Switch 8-Pin Metal Can

The Intersil ICL7673 is a monolithic CMOS battery backup circuit that offers unique performance advantages over conventional means of switching to a backup supply. The ICL7673 is intended as a low-cost solution for the switching of systems between two power supplies; main and battery backup.


  • Automatically connects output to the greater of either input supply voltage
  • If main power to external equipment is lost, circuit will automatically connect battery backup
  • Reconnects main power when restored
  • Logic indicator signaling status of main power
  • Low impedance connection switches
  • Low internal power consumption
  • Wide supply range: 2.5V to 15V
  • Low leakage between inputs
  • External transistors may be added if very large currents need to be switched


  • On board battery backup for real-time clocks, timers, or volatile RAMs
  • Over/under voltage detector
  • Peak voltage detector
  • Portable instruments, portable telephones, line operated equipment

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Package8-Pin Metal Can

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