DP8573A Datasheet - National Semiconductor

DP8573A Real Time Clock (RTC)

The DP8573A is intended for use in microprocessor based systems where information is required for multi-tasking data logging or general time of day date information This device is implemented in low voltage silicon gate microCMOS technology to provide low standby power in battery back-up environment.

DP8573A Features

* Y Y Y Full function real time clock calendar 12 24 hour mode timekeeping Day of week counter Parallel resonant oscillator Power fail features Internal power supply switch to external battery Power Supply Bus glitch protection Automatic log of time into RAM at power failure On-chip interrupt struc

DP8573A_NationalSemiconductor.pdf