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25LC128
RTC-6342 (2)RTC-6 (8)RTC (67)
Epson

RTC-63423B

Real Time Clock (RTC) IC Clock/Calendar Parallel 24-SOIC (0.311", 7.90mm Width)
Epson

RTC-63421B

Real Time Clock (RTC) IC Clock/Calendar Parallel 18-DIP (0.300", 7.62mm)
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