



PCF8563 Key Performance Indicators:
★ Battery powered (optional)
★ Wide voltage range: 1.0~5.5V
★ Ultra-low power consumption: 0.25uA (typical)
★ Serial input/output via I2C bus
★ Programmable clock output frequencies: 32.768kHz, 1024Hz, 32Hz, 1Hz
★ Four alarm functions and timer function
★ Built-in reset circuit, oscillator capacitor, and power-down detection circuit
★ Open-drain interrupt output
★ 400kHz high-speed read/write