The NXP PCF8523TK/1 is a sophisticated Real-Time Clock (RTC) IC that provides precise time tracking and a multitude of features for a wide array of applications. This device is particularly well-suited for applications that require accurate timekeeping, low power consumption, and extended operational reliability.

Key Features

• Accuracy: The PCF8523TK/1 offers excellent timekeeping accuracy with a frequency offset of only ±5 ppm at room temperature, which translates to less than 3 minutes deviation per year.
• Low Power: Designed for power-sensitive applications, it has a very low current consumption, allowing for extended battery life in portable devices.
• Calendar Function: It includes a full calendar with day/date, month, and year information, and is capable of handling leap years up to the year 2099.
• Multiple Time Formats: The device supports both 24-hour and 12-hour formats with an AM/PM indicator, providing flexibility for various user preferences and regional settings.
• Alarm Function: An integrated programmable alarm function enables the setting of time-based alerts, useful for reminders or wake-up signals in embedded systems.
• Timer Function: A countdown timer with interrupt capability adds to the versatility of the device, allowing for timed operations and event management.
• Clock Output Frequencies: The IC provides a clock output with programmable frequencies, useful for peripheral device clocking.
• I2C Interface: The inclusion of an I2C-bus interface ensures easy integration into most microcontroller-based systems, providing a simple communication method with minimal pin usage.
• Package: The device comes in a small and convenient TSSOP8 package, making it ideal for space-constrained applications.

Applications

The NXP PCF8523TK/1 is an ideal solution for a variety of applications, including but not limited to portable devices, wearables, smart meters, industrial controls, and IoT devices. Its combination of features ensures that it can meet the requirements of even the most demanding timekeeping tasks.

Technical Specifications