M41T83RMY6E

串行I2C总线RTC，电池切换 Serial I2C bus RTC with battery switchover

实时时钟 RTC IC 时钟/日历 7B I²C，2 线串口 18-SOX，带晶体的 18-SOIC（7.5mm 宽）

得捷:
IC RTC CLK/CALENDAR I2C 18SOX

贸泽:
实时时钟 Serial I2C bus RTC

艾睿:
Real Time Clock Serial 32byte Clock/Calendar/Alarm/Timer/Interrupt 18-Pin SOX Tube

Chip1Stop:
Real Time Clock Serial 32Byte 18-Pin SOX Tube

Win Source:
Serial RTC with battery switchover | IC RTC CLK/CALENDAR I2C 18-SOX