The NXP PCF2123BS/1 is a sophisticated real-time clock (RTC) and calendar optimized for low power consumption and with a wealth of features for timekeeping. Designed to be a highly accurate RTC, it is an ideal choice for applications in consumer electronics, wearable devices, and IoT applications where power efficiency and compact design are crucial.

Key Features

• High Accuracy: Offers a timekeeping accuracy of ±3 ppm at room temperature, ensuring precise time tracking over a wide temperature range.
• Ultra-low Power: With a power consumption of less than 150 nA, the PCF2123BS/1 is designed for battery-powered applications where energy efficiency is paramount.
• SPI-Bus Interface: Equipped with a serial peripheral interface (SPI) for easy integration with most microcontrollers, facilitating seamless communication and configuration.
• Programmable Clock Output: Features a programmable clock output for peripheral devices, which can be used as a system clock or for other timing purposes.
• Alarm and Timer Functions: Includes an alarm function that can be set to a specific time and date, as well as a countdown timer for added versatility.
• Small Footprint: The compact package size makes it suitable for space-constrained applications.

Applications

The PCF2123BS/1's combination of features makes it suitable for a wide range of applications, including:

• Portable devices
• Wearable technology
• Healthcare monitoring systems
• Smart meters
• Industrial and IoT devices

Technical Specifications

Here are some of the technical specifications of the PCF2123BS/1:

• Supply voltage: 1.8 V to 5.5 V
• Temperature range: -40 °C to +85 °C
• Frequency offset: ±3 ppm at 25°C
• Package: 8-pin TSSOP

Overall, the NXP PCF2123BS/1 is a highly integrated and efficient solution for timekeeping in modern electronic devices. Its ultra-low power consumption and comprehensive feature set make it an excellent choice for designers looking to enhance the performance and longevity of their products.