DS1374U-33+  – MAXIM INTEGRATED

The Maxim Integrated DS1374U-33+ is a low-current, serial real-time clock (RTC) with a unique addressable register structure, optimized for minimal power consumption and compact designs. This device features a trickle-charge capability, allowing for battery backup operation when primary power is lost. It communicates via a simple 3-wire interface (I²C), simplifying integration with microcontrollers. The DS1374U-33+ provides a clock/calendar function, including seconds, minutes, hours, day, date, month, and year with automatic leap-year compensation valid up to 2100. Its typical output voltage rating is 3.3V, with a maximum output current rating of 1mA. Packaged in a space-saving 8-pin µSOP (SMD) format, the DS1374U-33+ operates reliably across a wide operating temperature range of -40°C to +85°C. Its small size and low power consumption make it ideal for portable devices, data loggers, and embedded systems where accurate timekeeping is crucial and board space is limited.