PCF2128 Datasheet (NXP Semiconductors) - Integrated RTC/TCXO/Crystal

PCF2128, Integrated RTC/TCXO/Crystal

The PCF2128 is a ready to run CMOS real time clock/calendar with an integrated temperature compensated crystal oscillator (TCXO).

In timekeeping applications the high accuracy of the PCF2128 allows it to be used as a replacement for costly and higher powered long wave receivers or GPS receivers.

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PCF2128 Features

* 512 bytes of general purpose RAM, a programmable watchdog, a time stamp facility and a voltage monitoring facility. Programming is possible using either an SPI or an I2C-bus interface. 2. Features

* Integration of a 32.768 kHz quartz crystal in the same package as the RTC

* temperat