ChipNobo PCF8563T/5,518-CN

PCF8563T/5,518-CN is a CMOS real-time clock and calendar chip optimized for low power consumption. It provides a programmable clock output, interrupt output, and low-voltage detection. All addresses and data are serially transferred via a two-wire bidirectional I²C bus at a maximum bus speed of 400Kbit/s. The register address auto-increments after each write or read of a data byte.

• Year, month, day, day-of-week, hours, minutes, and seconds based on 32.768KHz quartz crystal
• Typical backup current: 0.25μA (VDD = 3.0V @ 25℃)
• 400KHz two-wire I²C bus interface (VDD = 1.8V to 5.5V)
• Programmable clock output for peripherals: 32.768KHz, 1.024KHz, 32Hz, and 1Hz
• Integrated oscillator capacitor
• Alarm and timer functions
• Internal power-on reset
• Open-drain interrupt pin
• I²C bus slave address: read 0A3h, write 0A2h
• Package: SOP8

• Mobile phones
• Portable instruments
• Electronic metering
• Battery-powered products