The DS17487-5+ is a high-performance, low-power Real-Time Clock (RTC) with a full binary-coded decimal (BCD) clock/calendar and 128 bytes of NV SRAM. Manufactured by Maxim Integrated, a leader in analog and mixed-signal products, this device ensures reliability and precision in timekeeping and data storage applications. It is an ideal component for embedded systems that require accurate timekeeping, such as industrial controllers, point-of-sale (POS) systems, and telecommunications equipment.
Key Features
- Integrated Power Management: The DS17487-5+ includes an automatic backup battery switch-over, which allows for continuous timekeeping and SRAM operation in the event of a primary power failure.
- Enhanced Data Security: The device features a write-protect function for the clock and user SRAM, providing an additional layer of data protection.
- Programmable Alarm and Interrupt Functions: It offers a versatile programmable alarm and interrupt functions, which can be set for a variety of applications, enhancing system responsiveness.
- Extended Temperature Range: This RTC is designed to operate effectively across an extended industrial temperature range, making it suitable for challenging environmental conditions.
Technical Specifications
| Parameter |
Value |
| Supply Voltage |
4.5V to 5.5V |
| Operating Temperature |
-40°C to +85°C |
| Memory |
128 bytes of NV SRAM |
| Package Type |
24-Pin EDIP or SOIC |
| Interface |
Serial |
The DS17487-5+ is available in two package options: a 24-pin EDIP (Extended Dual In-line Package) and a 24-pin SOIC (Small Outline Integrated Circuit), providing flexibility for various design requirements. With its robust feature set and Maxim Integrated's commitment to quality, the DS17487-5+ stands out as a reliable choice for RTC and memory solutions in critical applications.