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Interrupt output function of PCF2123

  • 2013-09-22
  • 335.02KB
  • Points it Requires : 1

PCF2123 is a low-power CMOS real-time clock/calendar chip launched by NXP. The chip has an SPI interface, and data is transmitted through the SPI bus with a bus rate of up to 6.25Mbit/s. PCF2123 has alarm function, timer function, clock output function, interrupt output function and clock calibration function. PCF2123 is a highly cost-effective clock chip that can be used in products such as electricity meters, water meters, telephones, fax machines, portable instruments, and battery-powered instruments.

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