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PCF2129A - Integrated RTC TCXO and quartz crystal

General Description

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.

Key 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, hours, minutes, and seconds Timestamp function ‹ with interrupt capability ‹ detection of two different events on one multilevel input pin (e. g. for tamper detection) Two line bidirectional 1 MHz Fa.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PCF2129A Integrated RTC, TCXO and quartz crystal Rev. 01 — 13 January 2010 www.DataSheet4U.com Product data sheet 1. General description 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-over circuit, a programmable watchdog function, a timestamp function, and many other features. 2. Features „ „ „ „ „ Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors Accuracy: ±3 ppm from −15 °C to +60 °C Integration of a 32.