【EPSON】RTC-4574JE:B3 ROHS,IC REAL TIME CLOCK 20-VSOJ
RTC-4574NB B 5+/-23PPM,
RTC-4574NB:B ROHS,IC RTC CLK/CALENDAR SER 22SON
【EPSON】RTC-4574NB:B3 ROHS,IC REAL TIME CLOCK 22-SON
RTC-4574SA B 5+/-23PPM,
RTC-4574SA:B ROHS,IC RTC CLK/CALENDAR SER 14SOP
RTC-4574SA:B:PURE SN,IC RTC CLK/CALENDAR SER 14SOP
【EPSON】RTC-4574SA:B:ROHS,IC REAL TIME CLOCK 14PIN-SOP