Description
VDD, VSS
Bus operational power is supplied to the part via these pins.
Data Bus (bidirectional): Data is written into the device from the data bus if either XRAM or RTC is asserted during a write cycle at the rising edge of a WR pulse.
Features
- Ideal for EISA bus PCs.
- Functionally compatible with MC146818 in 32 KHz
mode.
- Totally nonvolatile with over 10 years of operation in
the absence of power.
- Self-contained subsystem includes lithium, quartz,
and support circuitry.
- Counts seconds, minutes, hours, day of the week,
date, month, and year with leap year compensation.
- Binary or BCD representations of time, calendar, and
alarm.
- 12- or 24-hour clock with AM and PM in 12-hour.
DS1395_DallasSemiconductor.pdf
