PCF8563T(UMW)

PCF8563 is a CMOS real-time clock/calendar IC optimized for low power consumption. It also provides a programmable clock output, interrupt output, and low voltage detection. All addresses and data are transferred serially via a two-wire bidirectional I²C bus with a maximum bus speed of 400 kbit/s. The register address increments automatically after each write or read of the date table.

Applications

• Mobile phones
• Portable instruments
• Energy meters
• Battery-powered products
• Programmable clock output
• Alarm and timer functions

Key features

• Year, month, day, day-of-week, hour, minute, and second based on 32.768kHz quartz crystal
• Clock operating voltage: 1.0V ~ 5.5V at room temperature
• Low backup current; typical 0.25μA at VDD = 3.0V and Tamb = 25℃
• 400kHz two-wire I²C bus interface (at VDD = 1.8V ~ 5.5V)