real time clocks

Real Time Clock - 32.768kHz - Programmable Counters & Alarms - 3 outputs - I²C Interface - 1.5 to 3.6 VDC - 16 Le ...

Real Time Clock (RTC) IC Clock/Calendar - I²C, 2-Wire Serial - 10-SMD Module

RX8900CE:UC0 I2C-BUS RTC +/-5.0PPM-30~70C 10 PIN 1K T/R

I2C-BUS RTC +/-5.0PPM-30~70C SOP-14 PIN 1K T/R

RX4901CE XS A03 REAL TIME CLOCK 3 WIRE SPI-BUS +/-3PPM -40~85C PIN 4FOUT 250TR

RX-8803LC:UA0 PURE SN I2C-BUS RTC +/-3.4PPM-40~85C VSOJ-12 PIN 1K TR

AB-RTCMC-32.768KHZ-ZIZE-S2

RX4901CE XS C06 REAL TIME CLOCK 4 WIRE SPI-BUS +/-3PPM -40~85C PIN 4FOUT 2K TR

RX-4571NB:0 RTC SON 22PIN 5+/-23PPM 1K TR

RTC SON 14PIN 5+/-23PPM 250TR