PCF2123
SPI Real time clock/calendar
Rev. 6 — 15 July 2013
Product data sheet
1. General description
The PCF2123 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power applications. Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.25 Mbit/s. An alarm and timer function is also available p...
