FM31L278-GTR

The FM31L278-GTR is a high-performance, low-power real-time clock (RTC) integrated circuit (IC) designed by Cypress Semiconductor, which is now part of Infineon Technologies. This device is particularly suited for applications requiring precise timekeeping and low power consumption, making it ideal for battery-operated devices.

Key Features:

1. Timekeeping Accuracy: The FM31L278-GTR offers exceptional timekeeping accuracy, typically within ±3 minutes per year at room temperature. This precision is crucial for applications where accurate time tracking is essential.

2. Low Power Consumption: The RTC operates with a very low supply current, typically in the microamp range, which extends battery life in portable devices. The device can function with a supply voltage as low as 1.8V, making it compatible with a wide range of power sources.

3. Battery Backup: The FM31L278-GTR includes a battery backup feature that allows it to maintain timekeeping even when the main power supply is disconnected. This is particularly useful in applications where power interruptions may occur.

4. Integrated Oscillator: The device features an integrated 32.768 kHz crystal oscillator, which simplifies design and reduces the need for external components. This oscillator is essential for accurate timekeeping.

5. Programmable Alarm and Timer Functions: The FM31L278-GTR includes programmable alarm functions that can be configured to trigger at specific times or intervals. This feature is beneficial for applications requiring reminders or scheduled events.

6. I2C Interface: The RTC communicates with microcontrollers and other devices via an I2C interface, allowing for easy integration into various systems. This two-wire interface is widely used in embedded systems for its simplicity and efficiency.

7. Temperature Compensation: The device is designed to operate over a wide temperature range, ensuring reliable performance in various environmental conditions. Temperature compensation features help maintain accuracy across different temperatures.

8. Compact Package: The FM31L278-GTR is available in a compact package, which is advantageous for space-constrained applications. Its small footprint allows for easy integration into various electronic designs.

Applications:

The FM31L278-GTR is suitable for a wide range of applications, including:

• Consumer electronics (watches, clocks, and home appliances)
• Industrial equipment (data loggers, sensors, and control systems)
• Medical devices (patient monitoring systems and portable diagnostic tools)
• Automotive applications (dashboard clocks and infotainment systems)
• IoT devices (smart home products and wearable technology)

Conclusion:

Overall, the FM31L278-GTR from Cypress Semiconductor is a versatile and reliable real-time clock solution that combines accuracy, low power consumption, and ease of integration. Its features make it an excellent choice for a variety of applications where precise timekeeping is critical.