7/8/2026 8:23:49 AM   By  Symond  in


Introduction

The Real Time Clock PCF2129AT/2,518 by NXP is a highly accurate real-time clock (RTC) integrated circuit designed to provide reliable timekeeping, calendar functionality, and low-power operation for embedded and industrial electronic systems. Manufactured by NXP, a global leader in semiconductor innovation, this RTC IC delivers precise date and time management, making it an excellent choice for applications requiring continuous and dependable clock functionality.

As part of Semiconductors, Integrated Circuits - ICs, Clock & Timer ICs, Real Time Clock, the PCF2129AT/2,518 is widely used in industrial automation, smart metering, IoT devices, medical electronics, consumer products, communication equipment, and embedded control systems. Engineers and developers rely on PCF2129AT/2,518 Real Time Clock devices for accurate timekeeping, low power consumption, and seamless system integration.


Technical Specifications of PCF2129AT/2,518

General Specifications

  • Manufacturer: NXP

  • Part Number: PCF2129AT/2,518

  • Product Type: Real Time Clock (RTC)

  • Device Category: Clock & Timer IC

  • Function: Real-time clock and calendar

  • Package Type: Surface Mount

  • Interface: Digital communication interface

  • Power Consumption: Optimized for low-power operation

  • Reliability: High accuracy and long operational life

  • Category: Semiconductors, Integrated Circuits - ICs, Clock & Timer ICs, Real Time Clock

The PCF2129AT/2,518 Real Time Clock by NXP is designed to provide dependable timekeeping and efficient power management for modern embedded systems.


Key Features of PCF2129AT/2,518 Real Time Clock

Performance Benefits

  • Accurate real-time clock and calendar functionality

  • Low-power operation for battery-powered devices

  • Compact surface-mount package

  • Reliable long-term timekeeping

  • Easy integration into embedded systems

  • Stable performance across a wide range of applications

  • Manufactured to NXP's high-quality standards

The PCF2129AT/2,518 simplifies system design while providing accurate timing and reliable clock management.


Applications of PCF2129AT/2,518

Common Use Cases

  • Industrial automation equipment

  • IoT and smart devices

  • Data logging systems

  • Smart energy meters

  • Medical electronics

  • Consumer electronics

  • Security and access control systems

  • Embedded control systems

These applications demonstrate why Semiconductors, Integrated Circuits - ICs, Clock & Timer ICs, and Real Time Clock devices are essential in today's intelligent electronic systems.


Installation and Design Considerations

Best Practices

  • Follow the recommended PCB layout guidelines.

  • Ensure a stable power supply for accurate operation.

  • Use the recommended backup power source when required.

  • Minimize electrical noise near timing circuits.

  • Refer to the datasheet for interface configuration and operating conditions.

Proper implementation helps maximize the accuracy and long-term reliability of the PCF2129AT/2,518 Real Time Clock.


Typical Application Example

Embedded Data Logging System

  • Application: Industrial data logger with timestamp functionality

  • Challenge: Maintaining accurate time during power interruptions

  • Solution: PCF2129AT/2,518 Real Time Clock by NXP

  • Result: Reliable date and time tracking with low power consumption and dependable long-term operation

This example highlights the importance of high-performance Real Time Clock ICs in embedded electronic systems.


Datasheet Information

For complete electrical characteristics, timing accuracy, interface details, operating voltage, package dimensions, recommended PCB layout, and application circuits, refer to the official NXP datasheet available through authorized distributors.


Why Buy PCF2129AT/2,518 from XON?

Purchasing PCF2129AT/2,518 Real Time Clock by NXP from X-On Electronics provides:

  • 100% genuine NXP components

  • Competitive pricing

  • Fast worldwide shipping

  • Reliable inventory availability

  • Professional customer support

  • Trusted sourcing for industrial and commercial applications

Choose X-On Electronics for genuine Semiconductors, Integrated Circuits - ICs, Clock & Timer ICs, and Real Time Clock solutions.


Frequently Asked Questions (FAQs)

What is the PCF2129AT/2,518 used for?

The PCF2129AT/2,518 is used for accurate real-time clock and calendar functions in embedded, industrial, and electronic systems.

Who manufactures the PCF2129AT/2,518?

The PCF2129AT/2,518 Real Time Clock is manufactured by NXP.

Is this RTC suitable for battery-powered devices?

Yes. The PCF2129AT/2,518 is designed for low-power operation, making it ideal for battery-powered and portable applications.

What are the benefits of using a real-time clock IC?

A Real Time Clock IC provides accurate timekeeping, calendar functionality, low power consumption, and reliable system timing even during power interruptions.

Where can I buy the PCF2129AT/2,518 online?

You can purchase genuine PCF2129AT/2,518 Real Time Clock by NXP from X-On Electronics with worldwide shipping.


Conclusion

The PCF2129AT/2,518 Real Time Clock by NXP delivers accurate timing, reliable calendar functionality, and energy-efficient operation for modern embedded and industrial systems. As a trusted solution within Semiconductors, Integrated Circuits - ICs, Clock & Timer ICs, and Real Time Clock, the PCF2129AT/2,518 is an excellent choice for engineers developing reliable time-sensitive electronic applications.


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