실시간 클럭

Battery-Backed I2C Real-Time Clock/Calendar - 64-byte SRAM - 1.8 to 5.5VDC - 12/24 hour - I2C - -40°C to +125°C - ...

Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup Automotive 8-Pin SOIC N T/R

RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R

I2C-BUS INTERFACE RTC 5+/-23PPM (VSOJ-20) BULK - CUT TAPE

RX-8803SA:UC3PURESN

5+/-23PPM REAL TIME CLOCK 1K TR

RTC +/-5.0PPM -40~85C 250TR

RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR

RX-4035SA:AA3PURESN

RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK