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PCF8563 from NXP,NXP Semiconductors

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PCF8563

Manufacturer: NXP, PHI, PHILIPS

Real-time clock/calendar

Partnumber Manufacturer Quantity Availability
PCF8563 NXP, PHI, PHILIPS 7875 In Stock

Description and Introduction

Real-time clock/calendar # Introduction to the PCF8563 Real-Time Clock (RTC)  

The PCF8563 is a low-power CMOS real-time clock (RTC) and calendar integrated circuit designed for accurate timekeeping in electronic systems. Manufactured by NXP Semiconductors, this component is widely used in applications requiring precise time and date tracking, such as embedded systems, industrial automation, and consumer electronics.  

Featuring an I²C-bus interface, the PCF8563 simplifies integration with microcontrollers and other digital systems. It provides seconds, minutes, hours, day, date, month, and year information, with automatic leap-year correction up to the year 2100. The device also includes programmable alarms and timer functions, enhancing its utility in time-sensitive applications.  

With an ultra-low power consumption design, the PCF8563 is ideal for battery-powered devices. It includes a built-in oscillator circuit requiring only an external 32.768 kHz crystal for operation. Additionally, the RTC maintains timekeeping during power loss by utilizing a backup power supply, ensuring uninterrupted functionality.  

The PCF8563 is available in compact packages, making it suitable for space-constrained designs. Its reliability, ease of use, and low power consumption make it a preferred choice for engineers seeking a dependable real-time clock solution.

Application Scenarios & Design Considerations

Real-time clock/calendar

Alternative Part Number

  • DS1307 --: Widely used I2C real-time clock with similar function; different series name, easy to distinguish, and well supported.
  • M41T81 --: I2C serial real-time clock with comparable features and register-level compatibility for many designs; different prefix and manufacturer.
  • RV-8564-C3 --: I2C real-time clock module functionally equivalent to the PCF8563 family; different naming and package option for drop-in style replacement.
  • RV-8564-C2 --: I2C real-time clock module functionally equivalent to the PCF8563, often used as a direct alternative.

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