1PCS/5PCS RTC72421B RTC72421 4-bit real time clock module DIP18

1PCS/5PCS RTC62421B RTC62421 4-bit REAL TIME CLOCK MODULE DIP18

1PCS RTC62421A 4-bit REAL TIME CLOCK MODULE DIP18

1PCS/5PCS M5832 MICROPROCESSOR REAL-TIME CLOCK/CALENDAR DIP18

1PCS/5PCS RP5C01 Real-Time Clock with Internal RAM DIP18

DS3231 Real Time Clock RTC Module High-precision Including Battery

5pcs RTC72421B RTC72421 RTC72421 B Integrated Circuit IC DIP-18

1pcs DS1287+ Dallas Real Time Clock DIP18