The DS17487-3 is a high-performance, full-featured real-time clock (RTC) module from Maxim Integrated, designed to provide precise time and date information for a wide range of applications. Its integrated battery-backed non-volatile (NV) SRAM and RTC make it an ideal choice for systems that require reliable timekeeping, even in the absence of power.
Key Features
- Accurate Timekeeping: The DS17487-3 maintains seconds, minutes, hours, day, date, month, and year information with leap year compensation up to the year 2100.
- Integrated NV SRAM: Features 4K x 8 bits of NV SRAM, which preserves data during power loss without the need for an external battery.
- Battery Backup: Includes a built-in battery input that supports a standard lithium cell, ensuring long-term data and time retention.
- Programmable Alarm: Comes with an alarm function that can be set to a specific moment or to repeat daily, providing versatility for event management.
- Low Power Consumption: Its low-power design is ideal for battery-powered applications, minimizing the impact on system power resources.
- Bus Interface: The device supports both multiplexed bus types and a simple non-multiplexed bus for easy integration into various system architectures.
- Extended Temperature Range: Operates across an industrial temperature range, making it suitable for harsh environments.
Applications
The DS17487-3 is suitable for a variety of applications where reliable timekeeping is essential. This includes industrial systems, embedded computing, telecommunications, utility meters, and other applications that require an RTC for time-stamping, event scheduling, or real-time data logging.
Technical Specifications
| Parameter |
Value |
| Clock Format |
HH:MM:SS (24-hour) |
| Date Format |
DD-MM-YYYY |
| Interface Type |
Serial (SPI) |
| Voltage Supply |
3V |
| Operating Temperature |
-40°C to +85°C |
Overall, the DS17487-3 from Maxim Integrated stands out as a robust and reliable component for advanced timekeeping solutions, ensuring accuracy and stability in critical applications.