The Maxim Integrated DS1305EN+T&R is a full-featured, serial-interface real-time clock (RTC) with a built-in, programmable, dual-alarm capability. This high-precision timekeeping device is designed to maintain accurate time and date information, ranging from seconds to years, and it is particularly well-suited for applications that require an alarm function or need to maintain time across power cycles.

Key Features

• Serial Interface: The device communicates via a simple serial interface compatible with most microcontrollers, making it easy to integrate into a wide range of systems.
• Dual Programmable Alarms: With two programmable alarm outputs, the DS1305EN+T&R can trigger events at specific times or on a regular schedule, a feature that is invaluable for tasks such as waking up a system from a low-power state.
• Timekeeping Accuracy: This RTC maintains accurate timekeeping with minimal drift, which is critical for applications where precise time tracking is essential.
• Automatic Power-Fail Detect: The built-in power-fail detect and switch circuitry ensures that timekeeping continues uninterrupted in the event of a power interruption, by automatically switching to a backup power supply.
• Programmable Square-Wave Output: A programmable square-wave output provides additional functionality, such as a time base for various applications or as a heartbeat signal for watchdog timers.
• Low Power Consumption: The device is optimized for low power consumption, making it ideal for battery-powered applications.

Applications

The DS1305EN+T&R is versatile and can be used in various applications, including:

• Embedded systems
• Utility meters
• Security systems
• Medical devices
• Industrial control systems

Package and Supply

The DS1305EN+T&R is available in a tape and reel (T&R) package, facilitating easy integration into automated manufacturing processes. It operates over a wide temperature range, making it suitable for various environments.

With its robust feature set and reliable performance, the Maxim Integrated DS1305EN+T&R Serial Alarm Real-Time Clock is a smart choice for designers looking to add accurate timekeeping and alarm functionality to their projects.