PCF8563P/F4,112

Real-time clocks (RTCs) provide real-time clock synchronizing functions and manage tasks that need to be executed at precise times. The Phillips PCF8563P/F4,112 makes a great Real-time clock that is easy to use and reliable. It has a low current consumption, a built-in oscillator, and a programmable timer for periodic interrupts. The clock can be used in a variety of applications, including PC architectures and other applications requiring accurate time-keeping synchronization.

Application Field

The PCF8563P/F4,112 is perfect when an inexpensive device is needed to provide and maintain accurate time and date information with low power consumption. It comes with milliseconds, minutes, hours, dates, months, and years and operates in temperatures from 0°C to +70°C. It has alarm functionalities and a voltage-controlled oscillator, making it ideal for various data logging, time-based interrupt referencing and calibration activities.

The PCF8563P/F4,112 is useful in a variety of situations. Its low power consumption makes it ideal for battery-operated applications needing time synchronization and accuracy. Similarly, it is perfect for applications requiring external interrupts from a stable frequency, such as controlling fan motors in house systems or controlling printers in office setups. The device is also beneficial when an application needs precisely timed event control or actuation.

Working Principle

At the core of the PCF8563P/F4,112 is a quartz oscillator with an accuracy tolerance at ±30ppm (parts per million) at 25°C. The oscillator is voltage-controlled with a temperature compensation of ±2ppm over a range of 0°C to +73°C. It regulates a range of frequencies from 1Hz to 10MHz, making it ideal for many timing applications.

The PCF8563P/F4,112 works by comparing its internal stored seconds, minutes, hours and days against the internal quartz oscillator used by the clock. When the quartz oscillator registers a difference between the stored time and actual time, the internal registers are updated accordingly. The device uses a built-in oscillator or an external 32.768kHz crystal to keep time accurately.

The alarm function of the PCF8563P/F4,112 is generated when a user defined time is set and the internal oscillator activates an interrupt when the set time is reached. When the time is set for the alarm, it will go off until the alarm is reset by the user or disabled automatically by programming.

Conclusion

The Phillips PCF8563P/F4,112 real-time clock makes a great choice for applications requiring precise real-time synchronization and accuracy. With a built-in oscillator, low power consumption and a programmable timer for periodic interrupts, the PCF8563P/F4,112 is perfect for numerous data logging, time-based interrupt referencing and calibration activities. Its temperature range, low temperature sensitivity and stability makes it ideal for operating in a variety of environments.