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Harris CDP1879CE

In Stock: 1
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£7.50

Product Info

Harris CDP1879CE CMOS Real-Time Clock


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CMOS Real Time Clock

  • CPU Interface for use with general-purpose microprocessors
  • Time of day/calendar
  • Reads seconds, minutes, hours
  • Reads day of month and month
  • Alarm circuit with seconds, minutes or hours operation
  • Power down mode
  • Separate clock output selects 1 of 15 square wave signals
  • Interrupt output activated by clock output and/or alarm circuit
  • Data integrity sampling for clock rollover eliminated
  • On-board oscillator
    • 4.19 MHz, 2.09 MHz or 1.048 MHz @ 10 V (CDP1879) crystal operation
    • 4.19 MHz, 2.09 MHz, 1.048 MHz or 32 kHz @ 5 V (CDP1879C-1) crystal operation
    • 4.19 MHz, 2.09 MHz, 1.048 MHz or 32 kHz @ 10 V or 5 V external clock operation
  • Addressable in memory space or CDP1800 series I/O mode
  • Low standby (timekeeping) voltage with external clock

(Data taken from CMOS Peripherals CDP1879 / CDP1879C-1 Datasheet)

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