UM82C6818
Description
The UM82C6818 Real-Time Clock plus RAM is fabricated in high performance CMOS process to interface with 1MHz processor buses.
Key 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
- automatic leap year pensation
