PCF8564A - Real-time Clock/Calendar

NXP Semiconductors

Datasheet Details

The PCF8564A is a CMOS1 real-time clock and calendar optimized for low power consumption.

Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
Wide clock operating voltage: 1.0 V to 5.5 V.
Low back-up current typical 250 nA at 3.0 V and 25 C.
400 kHz two-wire I2C interface (1.8 V to 5.5 V).
Low-voltage detector.
Alarm and timer functions.
Two integrated oscillator capacitors.
Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz).
Internal Power-On Reset.

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Published: Jul 17, 2010 |