Texas Instruments

DP8573AN

DP8573AN Description

The DP8573AN is a Real-Time Clock (RTC) and Calendar IC designed by Texas Instruments, featuring a parallel interface and housed in a 24-pin DIP package. This device is specifically designed for applications requiring accurate timekeeping and calendar functions. It operates within a supply voltage range of 4.5V to 5.5V and supports a battery backup voltage range of 2.2V to 5.1V. The DP8573AN is known for its low power consumption, with a maximum timekeeping current of 1µA at 5V, making it suitable for battery-backed applications. The device supports both 12-hour and 24-hour time formats and includes advanced features such as an alarm and leap year compensation.

DP8573AN Features

• Low Power Consumption: The DP8573AN boasts a maximum timekeeping current of 1µA at 5V, ensuring minimal power draw and extended battery life.
• Alarm and Leap Year Features: The device includes an alarm function that can be programmed to trigger at specific times, and it automatically compensates for leap years, ensuring accurate date calculations.
• Flexible Time Format: Supports both 12-hour and 24-hour time formats, providing flexibility to meet various application requirements.
• Parallel Interface: The parallel interface allows for straightforward integration with microcontrollers and other digital systems.
• Through Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of installation on printed circuit boards.
• Wide Operating Voltage Range: The DP8573AN operates within a supply voltage range of 4.5V to 5.5V and supports a battery backup voltage range of 2.2V to 5.1V, offering flexibility in power supply options.
• Moisture Sensitivity Level (MSL) 1: The device is classified as MSL 1, indicating it is unaffected by moisture, making it suitable for a wide range of environmental conditions.

DP8573AN Applications

The DP8573AN is ideal for a variety of applications where accurate timekeeping and calendar functions are essential. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems that require reliable timekeeping and calendar functions, such as industrial controllers, medical devices, and smart meters.
• Consumer Electronics: Suitable for consumer electronics like digital clocks, alarm clocks, and home automation systems where accurate time display and scheduling features are required.
• Telecommunications: Can be used in telecommunication equipment for logging events and maintaining accurate time records.
• Automotive Applications: Useful in automotive systems for time-based functions such as maintenance scheduling and event logging.

Conclusion of DP8573AN

The DP8573AN from Texas Instruments is a robust and versatile Real-Time Clock and Calendar IC that offers low power consumption, advanced features, and flexible operating conditions. Its low timekeeping current of 1µA at 5V ensures long battery life, making it suitable for battery-backed applications. The inclusion of an alarm function and leap year compensation adds significant value, enhancing its functionality beyond basic timekeeping. The parallel interface and through-hole mounting type simplify integration into various electronic systems. Despite being marked as obsolete, the DP8573AN remains a reliable choice for applications requiring accurate and reliable timekeeping and calendar functions.