The DS1337U/TR from Maxim Integrated is a serial real-time clock (RTC) device that provides a full binary-coded decimal (BCD) clock/calendar with 56 bytes of NV SRAM. This high-performance RTC is designed for use in a wide range of applications, including embedded systems, servers, personal electronics, and industrial equipment, where accurate timekeeping is crucial.

Address and data are transferred serially through an I²C bidirectional bus, which simplifies integration into your design with minimal interfacing required. The device incorporates a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.

Key Features

• Timekeeping: Seconds, minutes, hours, day, date, month, and year information with leap year compensation valid up to the year 2100.
• Interface: I²C serial interface for straightforward integration with microcontrollers and processors.
• Power Management: Automatic power-fail detect and switch circuitry, ensuring continuous timekeeping.
• Memory: 56 bytes of nonvolatile (NV) SRAM for data storage that is preserved during power-down periods.
• Package: Offered in a compact, surface-mountable 8-pin µSOP package, ideal for space-constrained applications.
• Supply Voltage: Operates on a supply voltage of 2.3V to 5.5V, suitable for battery-backed applications.
• Temperature Range: Industrial temperature range (-40°C to +85°C), ensuring reliable operation under varying environmental conditions.

The DS1337U/TR is a testament to Maxim Integrated's commitment to providing innovative, high-quality timekeeping solutions. Its combination of features, including a simple interface, robust power management, and additional NV SRAM, make it an excellent choice for maintaining precise time in your application, even in the event of a main power outage.

Whether you're designing consumer electronics or industrial machinery, the DS1337U/TR offers the reliability and precision you need in a real-time clock, backed by Maxim Integrated's reputation for quality and performance.