PCF2129A Datasheet - NXP Semiconductors

PCF2129A Integrated RTC TCXO and quartz crystal

The PCF2129A is a CMOS1 real time clock 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 PCF2129A has a selectable I2C-bus or SPI-bus, a backup battery switch-.

PCF2129A Features

* 2. Features

* Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors Accuracy: ±3 ppm from

* 15 °C to +60 °C Integration of a 32.768 kHz quartz crystal and oscillator in the same package Provides year, month, day, weekday

PCF2129A_NXPSemiconductors.pdf