UMC UM82C6818
The UM82C6818 Real-Time Clock plus RAM is fabricated in high performance CMOS process to interface with 1MHz processor buses. It combines three unique features: a • Interfaced with software as 64 RAM locations - 14 bytes of clock and control registers - 50 bytes of general purpose RAM • Status bit indicates data integrity • Bus compatible interrupt signals (IRQ) • Three in| Part No. | UM82C6818 |
|---|---|
| Datasheet | UM82C6818 Download |
| Manufacturer |  UMC |
| Description | Real Time Clock Plus RAM |
| Buy | Stock & Price |
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 compensation
● Multiplexed bus for pin efficiency