Maxim Integrated DS1340U-33/TR Real-Time Clock

The DS1340U-33/TR from Maxim Integrated is a highly integrated, low-power real-time clock (RTC) with a full binary-coded decimal (BCD) clock/calendar and 56 bytes of NV SRAM. This precision time-keeping device is ideal for a wide range of applications in consumer electronics, office automation, telecommunications, and embedded systems where maintaining accurate time is crucial.

Operating at a voltage range of 2.7V to 5.5V, the DS1340U-33/TR is designed to provide robust time-keeping capabilities while consuming minimal power, making it suitable for battery-backed or portable applications. Its I²C interface allows for easy integration into existing microcontroller-based systems, and the device's small footprint is available in an 8-pin µSOP (Micro Small Outline Package) which is perfect for space-constrained applications.

One of the key features of the DS1340U-33/TR is its automatic leap year compensation, which is valid up to the year 2100. It also provides a programmable square-wave output that can be used for various functions, including interrupt generation or as a clock reference. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information, and the end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year.

The device also includes a trickle-charge capability that allows an external capacitor or rechargeable battery to be connected to the VBACKUP pin to maintain timekeeping and SRAM operation while the main power is absent. This feature ensures that time is always kept accurately without interruption.

For applications requiring a reliable and easy-to-use time-keeping solution, the Maxim Integrated DS1340U-33/TR Real-Time Clock offers a compelling combination of features, power efficiency, and compact packaging. Its robust design and extended temperature range make it an excellent choice for a variety of industrial and commercial products.

Whether you're designing smart appliances, data loggers, or portable medical devices, the DS1340U-33/TR delivers the precision and reliability needed to maintain accurate time and date information in your system.