JSMSEMI PCF8563TS-JSM

PCF8563 is a CMOS real-time clock and calendar IC optimized for low power consumption, featuring a programmable clock output, interrupt output, and low-voltage detector. All addresses and data are transferred serially via a two-wire bidirectional I²C bus at a maximum bus speed of 400 kbit/s. The register address increments automatically after each written or read data byte.

• Year, month, day, day-of-week, hour, minute, and second based on 32.768kHz quartz crystal
• Century flag
• Clock operating voltage: 1.2V to 5.5V at room temperature
• Low backup current; typical 0.5μA (VDd = 3.0V, Tamb = 25°C)
• 400kHz two-wire I²C bus interface (VDd = 1.8V to 5.5V)
• Programmable clock output for peripherals (32.768kHz, 1.024kHz, 32Hz, and 1Hz)
• Alarm and timer functions
• Integrated oscillator capacitors
• Internal power-on reset
• I²C bus slave address: read A3h, write A2h
• Open-drain interrupt pin

• Mobile phones
• Portable instruments
• Electronic metering
• Battery-powered products
• Multi-rate energy meters, IC card water meters