- RTC-72423B:3IC REAL TIME CLOCK 24-SOP|EPSON|Lead All|RoHS Mixed
- RTC-72423A:3IC REAL TIME CLOCK 24-SOP|EPSON|Lead All|RoHS Mixed
- RTC-72423AIC REAL TIME CLOCK 24-SOP|EPSON|Lead All|RoHS Mixed
- RTC-72423BIC REAL TIME CLOCK 24-SOP|EPSON|Lead All|RoHS Mixed