PCF2123BS/1,518

The PCF2123BS/1,518 is a highly integrated real-time clock (RTC) device manufactured by NXP Semiconductors. This component is designed to provide accurate timekeeping and is particularly suitable for applications requiring low power consumption and high reliability. Below is a detailed description of its features and specifications:

Key Features:

1. Real-Time Clock Functionality:

   • The PCF2123BS/1,518 provides precise timekeeping capabilities, including seconds, minutes, hours, day, date, month, and year. It can also account for leap years.

2. Low Power Consumption:

   • The device operates with minimal power, making it ideal for battery-powered applications. It features a low-power sleep mode that significantly reduces current draw when the device is not actively being used.

3. I2C Interface:

   • The RTC communicates with microcontrollers and other devices via an I2C (Inter-Integrated Circuit) interface, allowing for easy integration into various systems. The I2C bus supports multiple devices on the same bus, enhancing flexibility in design.

4. Wide Operating Voltage Range:

   • The PCF2123BS/1,518 operates over a broad voltage range, typically from 1.8V to 5.5V, making it compatible with a variety of power supply configurations.

5. Temperature Compensation:

   • The device includes temperature compensation features to ensure accurate timekeeping across a wide range of operating temperatures, which is crucial for applications in varying environmental conditions.

6. Integrated Oscillator:

   • It features an integrated 32.768 kHz crystal oscillator, which is a standard frequency for RTCs, ensuring stable and accurate timekeeping.

7. Alarm and Timer Functions:

   • The RTC includes programmable alarm functions that can trigger interrupts, allowing the device to wake up a microcontroller or perform specific tasks at predetermined times.

8. Battery Backup:

   • The PCF2123BS/1,518 supports a battery backup feature, allowing it to maintain timekeeping even when the main power supply is disconnected. This is essential for applications where continuous timekeeping is critical.

9. Compact Package:

   • The device is available in a compact package, which is advantageous for space-constrained applications. The small footprint allows for easy integration into various electronic designs.

Applications:

The PCF2123BS/1,518 is suitable for a wide range of applications, including but not limited to:

• Consumer electronics (watches, clocks, and home appliances)
• Industrial automation systems
• Medical devices
• Automotive applications
• Smart meters and energy management systems
• IoT devices requiring time-stamping capabilities

Conclusion:

The PCF2123BS/1,518 from NXP Semiconductors is a versatile and reliable real-time clock solution that combines low power consumption with a rich set of features. Its ability to maintain accurate timekeeping in various conditions makes it an excellent choice for a multitude of applications across different industries.