Maxim Integrated MAX31334SHLD Evaluation Kit is a fully assembled and tested PCB designed to evaluate the MAX31334. The MAX31334 is an ultra-low power, low-cost, real-time clock (RTC) with an integrated power switch, I2C interface, and power management. The Maxim MAX31334SHLD kit operates from a single supply (either from USB or external power supply), and the onboard crystal provides a 32.768kHz clock signal. The device utilizes an I2C serial interface supplied by a MAX32625PICO board connected to a PC via a USB port.