Description
The UM82C6818 Real-Time Clock plus RAM is fabricated in high performance CMOS process to interface with 1MHz processor buses.
Features
- Internal time base and oscillator.
- Counts seconds, minutes, and hours of the day.
- Counts days of the week, date, month, and year.
- 3V to 6V operation.
- Time base input options: 4.194304 MHz, 1.048576 MHz,
or 32.768 kHz.
- Time base osci lIator for parallel resonant crystals.
- Binary or BCD representation of time, calendar, and
alarm.
- 12 or 24-hour clock with AM and PM in 12-hour mode.
- automatic end of month recognition.
UM82C6818-UMC.pdf
