PCF8523TK/1,118

The PCF8523TK/1 is a real-time clock (RTC) integrated circuit (IC) manufactured by NXP Semiconductors. This device is designed to provide accurate timekeeping and date tracking for various applications, including consumer electronics, industrial equipment, and automotive systems.

Key Features:

1. Timekeeping Functionality: The PCF8523TK/1 offers precise timekeeping capabilities, maintaining accurate time even during power outages, thanks to its built-in battery backup feature. It can keep track of hours, minutes, seconds, day, month, and year.

2. 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, making it versatile for complex applications.

3. Low Power Consumption: Designed for battery-operated devices, the PCF8523TK/1 features low power consumption in both active and standby modes, extending battery life and making it suitable for portable applications.

4. Alarm and Timer Functions: The device includes programmable alarm functions, allowing it to generate interrupts at specified times. This feature is useful for applications that require periodic wake-up signals or reminders.

5. Temperature Compensation: The RTC is designed to maintain accuracy across a wide temperature range, ensuring reliable performance in various environmental conditions.

6. 32.768 kHz Crystal Oscillator: The PCF8523TK/1 typically operates with an external 32.768 kHz crystal oscillator, which is a standard frequency for RTCs, providing a stable time base.

7. Compact Package: The IC is available in a compact package, making it suitable for space-constrained applications. Its small footprint allows for easy integration into printed circuit boards (PCBs).

8. Programmable Output: The device can be configured to output a square wave signal, which can be used for timing applications or as a clock signal for other components.

Applications:

• Consumer Electronics: Used in devices such as clocks, home appliances, and wearable technology to keep track of time and date.
• Industrial Equipment: Employed in machinery and control systems where precise timing is critical for operations and logging.
• Automotive Systems: Integrated into automotive electronics for functions like timekeeping in dashboards and event logging.

Electrical Characteristics:

• Supply Voltage: Typically operates at a voltage range of 1.0V to 5.5V, making it compatible with a wide range of power supply systems.
• Operating Temperature Range: Designed to function effectively in various temperature environments, typically from -40°C to +85°C.

Conclusion:

The PCF8523TK/1 from NXP Semiconductors is a highly reliable and versatile real-time clock IC that provides essential timekeeping functions for a wide array of applications. Its low power consumption, I2C interface, and additional features like alarms and temperature compensation make it an ideal choice for developers looking to implement accurate timekeeping in their electronic designs.