The DS1501W+ from Maxim Integrated is a full-function, year-2000-compliant (Y2K), real-time clock/calendar (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. This high-precision RTC is designed to provide timekeeping accuracy and stability over a wide temperature range, making it an ideal choice for applications that require reliable timekeeping under varying environmental conditions.

Key Features

• Accurate Timekeeping: The DS1501W+ maintains precise timekeeping with an accuracy of ±1 minute per month at 25°C.
• Backup Battery Input: The device includes a backup battery input that supports a wide range of battery technologies, ensuring continuous timekeeping in the event of a primary power failure.
• Automatic Power-Fail Detect: Features an automatic power-fail detect and switch circuitry that transitions to the backup battery power seamlessly.
• Serial Interface: A serial interface is provided for easy integration into microprocessor-based systems.
• Y2K Compliance: The DS1501W+ is fully compliant with year-2000 requirements and supports leap year compensation.
• Watchdog Timer: An integrated watchdog timer improves system reliability by initiating a system reset in case of a software lockup.

Applications

The robust design and high precision of the DS1501W+ make it suitable for a wide range of applications, including:

• Telecommunication systems
• Embedded systems
• Industrial controllers
• Utility meters
• POS terminals
• Medical devices

Technical Specifications

The DS1501W+ operates over a temperature range of -40°C to +85°C and is available in a 28-pin EDIP or 24-pin SOIC package. It also includes a programmable alarm and interrupt function to facilitate scheduled events or periodic system checks.

For detailed technical specifications, datasheets, and support documentation, interested parties are encouraged to visit Maxim Integrated's official website or contact their local Maxim Integrated sales office.