PCF85063TP/1Z (NXP)

The PCF85063TP/1Z is a CMOS Real-time Clock (RTC) and Calendar optimized for low power consumption. It provides year, month, day, weekday, hours, minutes and seconds based on a 32.768kHz quartz crystal. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I?C-bus. Maximum bus speed is 400kbps. The register address is incremented automatically after each written or read data byte.