DP8570A Datasheet - National Semiconductor

DP8570A Timer Clock Peripheral (TCP)

The DP8570A 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.

DP8570A Features

* Y Y Y Y Y Y Full function real time clock calendar 12 24 hour mode timekeeping Day of week and day of years counters Four selectable oscillator frequencies Parallel Resonant Oscillator Two 16-bit timers 10 MHz external clock frequency Programmable multi-function output Flexible re-trigger facil

DP8570A_NationalSemiconductor.pdf