BUY MAX313CSE https://www.utsource.net/itm/p/1746449.html
10з, Quad, SPST, CMOS Analog Switches
Description: Real-Time Clock/Calendar with Alarm and Digital Trimming Features: Low Power CMOS Real-Time Clock/Calendar ±2.5ppm Accuracy from 0°C to +70°C Battery Backup Input Digital Trimming of Clock Frequency Programmable Alarm Programmable Square-Wave Output I2C/SMBus Interface SOP-16 Package Application: The MAX313CSE is a low-power CMOS real-time clock/calendar with alarm and digital trimming. It is ideal for applications requiring accurate timekeeping such as data logging, time-stamping, and time-sensitive control. The device is also suitable for use in embedded systems, personal computers, and other applications requiring accurate timekeeping. (For reference only)