The Micro Crystal RV-4162-C7-TA-020 is a highly compact, surface-mount Real-Time Clock (RTC) module that integrates a 32.768kHz quartz crystal and a CMOS-based RTC IC into a single ceramic package. This all-in-one, space-saving solution operates on a wide voltage range of 1.0V to 4.4V with an ultra-low power consumption of just 350nA, making it ideal for battery-powered devices and other cost-sensitive applications. It provides full time and calendar functions, communicates via an I²C interface, and includes programmable alarm and watchdog timer features.