NXPs chips Nexperia PCF85063ATL/1,118 Ultra‑low‑power CMOS RTC with I²C 0.9–5.5 V
General description
The PCF85063A is a CMOS¹ real-time clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I²C-bus. The maximum data rate is 400 kbit/s. The register address increments automatically after each written or read data byte.
Features and benefits
Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
Clock operating voltage: 0.9 V to 5.5 V
Low current; typical 0.22 μA at V_DD = 3.3 V and T_amb = 25 °C
400 kHz two-line I²C-bus interface (at V_DD = 1.8 V to 5.5 V)