https://www.ablic.com/en/semicon/datasheets/rtc/realtime-clock/s-35390a/
S-35390A Datasheet, Specifications, Parts list and Support - ABLIC Inc.
Oct 15, 2024 - The S-35390A is a low-current-consumption 2-wire CMOS real-time clock IC that features a wide operating voltage range (1.3 V to 5.5 V) and can be driven
parts listdatasheetspecificationssupportablic