DS1374U-33+T&R

The DS1374U-33+T&R is a versatile Real Time Clock (RTC) IC from Analog Devices / Maxim Integrated, designed for precise timekeeping in various applications. It incorporates a 32-bit binary counter for continuous time tracking in seconds, along with an additional counter that can function as a time-of-day alarm, watchdog timer, or 3 bytes of non-volatile RAM.

Key electrical specifications include an operating voltage range of 1.3V to 5.5V and a typical current consumption of 175µA at 2.97V to 5.5V. The device communicates via an I2C serial interface, simplifying integration into embedded systems. It also features automatic power-fail detect and switch circuitry, ensuring reliable operation during power fluctuations, and a single-pin pushbutton reset input with an open-drain reset output.

This RTC operates within a temperature range of -40°C to +85°C, making it suitable for demanding environments. It is available in a compact 10-uMAX/uSOP surface-mount package, offering flexibility for space-constrained designs. The DS1374U-33+T&R also includes trickle-charge capability for backup power management.

Applications for this component include portable instruments, point-of-sale equipment, medical equipment, and telecommunications systems where accurate timekeeping and reliable operation are critical.