PCF8563TM/TR

The PCF8563T is a low-power CMOS real-time clock/calendar IC featuring a programmable clock output, an interrupt output, and a power-down detector. All addresses and data are transferred serially via the I2C bus interface at a maximum bus speed of 400 Kbit/s. The internal word address register increments automatically after each read/write operation.

Applications

• Mobile phones
• Portable instruments
• Fax machines

Key features

• Low sleep current: typical 0.25μA (VDD = 3V @ 25°C)
• Clock operating voltage: 1.0V ~ 5.5V (Tamb = 25°C)
• 400KHz I2C bus interface (VDD = 1.8V ~ 5.5V)
• Programmable clock output frequencies: 32.768KHz, 1024Hz, 32Hz, 1Hz
• Integrated internal oscillator capacitor
• Alarm and timer functions
• Internal power-on reset (POR)
• Open-drain interrupt output pin
• I2C bus slave address: Read - 0A3H; Write - 0A2H