The PCF8563 is a CMOSI Real-Time Clock (RTC) and calendar optimized for low powrer consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a tv.’&line bidirectional 12C-bus. Maximum bus speed is 400 kbit/s. The register address is incremented automatically after each written or read data byte.
Features:-
? Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
? Century flag
? Clock operating voltage: 1.0 V to 5.5 V at room temperature
?Low backup current; typical 0.25 at VDD = 3.0 V and Tamb = 25 ? c
? 400 kHz two-wire I2C-bus interface (at VDD = 1.8 V to 5.5 V)
? Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
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