PCF2129 Datasheet (NXP)

PCF2129, Accurate RTC

The PCF2129 is a CMOS1 Real Time Clock (RTC) and calendar with an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption.

The PCF2129 has a selectable I2C-bus or SPI-bus, a backup battery swi

PCF2129 Features

* UL Recognized Component (PCF2129AT and PCF2129T)

* Operating temperature range from -40 °C to +85 °C

* Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors

* Typical accuracy:

* PCF2129AT: ±3 ppm from -15 °C to +60 °C

* PCF212