Download PCF2127 Datasheet PDF
PCF2127 page 2
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PCF2127 Key Features

  • UL Recognized ponent
  • Operating temperature range from 40 C to +85 C
  • Temperature pensated Crystal Oscillator (TCXO) with integrated capacitors
  • Typical accuracy
  • PCF2127AT: 3 ppm from 15 C to +60 C
  • PCF2127T: 3 ppm from 30 C to +80 C
  • Integration of a 32.768 kHz quartz crystal and oscillator in the same package
  • Provides year, month, day, weekday, hours, minutes, seconds, and leap year correction
  • 512 bytes of general-purpose static RAM
  • Timestamp function

PCF2127 Description

The PCF2127 is a CMOS1 Real Time Clock (RTC) and calendar with an integrated Temperature pensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCF2127 has 512 bytes of general-purpose static RAM, a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and...