Datasheet Summary
Integrated RTC / TCXO / Crystal
Rev. 00.03
- 4 June 2007
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Preliminary [short] data sheet
1. General description
The PCF2128 is a ready to run CMOS real time clock/calendar with an integrated temperature pensated 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. A programmable battery switch-over circuit enables an uninterruptible power supply and consequently continuous timekeeping. The PCF2128 additionally Features
512 bytes of general purpose RAM, a programmable watchdog, a time stamp facility and a voltage...