Datasheet Summary
Real time clock and calendar
Rev. 3
- 26 August 2013
Product data sheet
1. 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. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte.
2. Features and benefits
- 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...