R2023K Overview
R2023K/T 2-wire Serial Interface Real Time Clock IC .. NO.EA-124-070221 OUTLINE The R2023K/T is a CMOS real-time clock IC connected to the CPU by two signal lines, SCL, SDA, and configured to perform serial transmission of time and calendar data to the CPU. The periodic interrupt circuit is configured to generate interrupt signals with six selectable interrupts ranging from 0.5 seconds to 1 month.