25LC128
RX-4045S (2)RX-4045 (3)RX-40 (4)RX-4 (17)

Epson

RX-4045SA:AA3

Real Time Clock (RTC) IC Clock/Calendar SPI 14-SOIC (0.209", 5.30mm Width)
Epson

RX-4045SA:AA0

Real Time Clock (RTC) IC Clock/Calendar SPI 14-SOIC (0.197", 5.00mm Width)

Top