PCF8562TT/2.118 is a CMOS Real-Time Clock/Calendar with two time-of-day alarms and a power-fail event. It is designed to provide reliable timing and calendar functions while minimizing power consumption. The device is built with NXP’s advanced CMOS technology, and offers a variety of features, including automatic leap year compensation, different formats for weekdays, a programmable frequency output, and a power-sense input for battery backup. This part is ideal for systems that require high accuracy timekeeping and low-power operation.