25LC128
RTC-4543SB (2)RTC-4543S (5)RTC-45 (11)RTC-4 (14)RTC (67)

Epson

RTC-4543SB:B3 ROHS

Real Time Clock (RTC) IC Clock/Calendar 3-Wire Serial 18-SOIC (0.209", 5.30mm Width)
Epson

RTC-4543SB:A

Real Time Clock (RTC) IC Clock/Calendar 3-Wire Serial 18-SOIC (0.209", 5.30mm Width)

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