PCF8563 is PHILIPS introduced a company-class embedded I2C bus interface with a very low power consumption of multi-function clock / calendar chip. PCF8563 a variety of alarm functions, timer function, clock output function and interrupt output function to complete a variety of complex timing services, and even for the microcontroller to provide watchdog function. Is a highly cost-effective clock chip , it has been widely used in electricity meters, water, gas, telephone , fax machines, portable instrumentation and battery-powered instruments and other products.
PCF8563 main performance indicators :
can be used to recharge the battery
wide voltage range of 1.0 ~ 5.5V
ultra low power consumption: a typical value of 0.25uA
through the I2C bus serial input / output
Programmable clock output frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz.
four alarm function and timer function
contains reset circuit, oscillator capacitor and power-down detection circuit
open drain interrupt output
۴۰۰KHZ high-speed read and write