The DS1337S+T from Maxim Integrated is a serial real-time clock (RTC) device that provides a full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. This high-precision timekeeping device features a built-in temperature-compensated crystal oscillator (TCXO) and crystal, which ensures high accuracy and stable timekeeping, making it an ideal choice for a wide range of applications, including industrial systems, embedded electronics, and consumer products.

Address and data are transferred serially through an I²C bidirectional bus, which makes the DS1337S+T easy to integrate with a microcontroller or other I²C-compatible devices. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.

Two programmable time-of-day alarms and a programmable square-wave output are available, providing additional utility for tasks such as wake-up alarms or periodic system checks. The alarms can be set to trigger on a per-second, per-minute, hourly, or daily basis, offering flexible configuration options for various use cases.

The DS1337S+T operates over a wide temperature range and has a low power consumption, making it suitable for battery-powered applications. Its surface-mount package allows for compact PCB designs and is ideal for space-constrained applications.

• Key Features:
• Highly accurate real-time clock/calendar
• 56 bytes of NV SRAM
• Automatic leap year compensation
• I²C serial interface
• Two programmable time-of-day alarms
• Programmable square-wave output
• Wide operating temperature range
• Low power consumption

In summary, the DS1337S+T is a versatile and reliable real-time clock component that provides precise time and date information, along with additional features for complex time-based tasks. It is an excellent choice for designers looking for a high-quality RTC solution for their time-sensitive applications.