CDP6818A - CMOS Real-Time Clock
CDP6818A Features
* Low-power, high-speed CMOS
* Internal time base and oscillator
* Counts seconds, minutes, and hours of the day
* Counts days of the week, date, month, and year
* 3 V to 6 V operation
* Time base input options: 4.194304 MHz, 1.048576 MHz, or 32.768 k
