The DS1315E-336-B1G, manufactured by Maxim Integrated, is a high-performance, nonvolatile timekeeping RAM device that seamlessly integrates battery-backed SRAM, real-time clock, and crystal into a single package. This innovative product has been designed to retain data and time information over an extended period of time, even in the event of a primary power failure, making it an ideal solution for a wide range of applications that require reliable timekeeping and data storage.

The DS1315E-336-B1G is unique in its ability to automatically switch to a backup power supply when the primary power drops below a critical threshold. This ensures continuous operation of the timekeeping and SRAM functions. The device features a standard 28-pin, 600-mil DIP package and integrates a precision crystal oscillator, which eliminates the need for external timing components, thus simplifying design and reducing board space requirements.

One of the key features of the DS1315E-336-B1G is its Phantom Clock™ technology, which allows the device to maintain accurate time and date while the SRAM is powered by the backup battery. The real-time clock provides seconds, minutes, hours, day, date, month, and year information, with automatic leap year compensation valid up to 2100. The clock can operate in either 24-hour or 12-hour format with an AM/PM indicator.

The nonvolatile aspect of the DS1315E-336-B1G is ensured by the inclusion of a lithium energy cell, which can be easily connected to the VBAT pin. The device is designed to minimize power consumption, thereby extending the life of the backup battery. Additionally, the DS1315E-336-B1G offers a trickle-charge capability to keep the energy cell topped up while the main power is available.

With its robust feature set and integrated approach, the DS1315E-336-B1G from Maxim Integrated offers a compact, reliable, and energy-efficient solution for maintaining data integrity and accurate timekeeping in embedded systems, utility meters, industrial controllers, and other critical applications where data and time must be preserved without interruption.