Epson

RX-8581SA:B

RX-8581SA:B Description

The RX-8581SA:B is a high-performance Real-Time Clock (RTC) and Calendar IC designed by EPSON, a leading manufacturer in the field of timing solutions. This device is specifically engineered to provide accurate timekeeping and calendar functions in a variety of electronic systems. The RX-8581SA:B operates within a wide supply voltage range of 1.8V to 5.5V, ensuring compatibility with different power supply configurations. It features a maximum timekeeping current of 0.8µA to 1.2µA at 3V to 5V, making it highly energy-efficient and suitable for battery-operated applications.

The RX-8581SA:B is housed in a surface-mount package, specifically a 14SOP tube, which facilitates easy integration into compact and space-constrained designs. This IC is designed for surface mount technology, allowing for automated assembly processes and enhancing the reliability of the final product. The device is also REACH Affected and ROHS3 Compliant, ensuring it meets the latest environmental and safety standards.

RX-8581SA:B Features

The RX-8581SA:B offers several advanced features that set it apart from other RTC ICs in the market. Key features include:

• Alarm Functionality: The IC supports an alarm feature, enabling precise scheduling and timing control in various applications.
• Leap Year Calculation: It automatically accounts for leap years, ensuring accurate date calculations over extended periods.
• 24-Hour Time Format: The device operates in a 24-hour time format (HH:MM:SS), providing clear and unambiguous timekeeping.
• I2C Interface: The RX-8581SA:B communicates via the I2C protocol, simplifying integration with microcontrollers and other system components.
• Low Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the IC is highly resistant to moisture, making it suitable for a wide range of environmental conditions.

RX-8581SA:B Applications

The RX-8581SA:B 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 requiring precise timekeeping, such as industrial controllers and IoT devices.
• Consumer Electronics: Suitable for consumer electronics like digital clocks, smartwatches, and home automation systems.
• Telecommunications: Can be used in telecommunication equipment for timestamping and synchronization.
• Medical Devices: Applicable in medical devices where accurate time and date recording are critical for patient monitoring and data logging.

Conclusion of RX-8581SA:B

In summary, the RX-8581SA:B is a robust and versatile RTC and Calendar IC that offers a combination of advanced features and energy efficiency. Its wide supply voltage range, low power consumption, and surface-mount package make it suitable for a variety of applications. The inclusion of an alarm function, leap year calculation, and 24-hour time format further enhance its functionality. Despite being marked as obsolete, the RX-8581SA:B remains a reliable choice for designers seeking a high-performance RTC solution.