Datasheet Details
| Part number | PCF8564A |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 324.41 KB |
| Description | Real-time Clock/Calendar |
| Datasheet |
 PCF8564A Datasheet
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General Description
The PCF8564A is a CMOS1 real-time clock and calendar optimized for low power consumption.
A programmable clock output, interrupt output and voltage low detector are also provided.
All addresses and data are transferred serially via the two-line bidirectional I2C-bus.
Key Features
- 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.