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19-6307; Rev 6/12
DS1314 3V Nonvolatile Controller with Lithium Battery Monitor
FEATURES
Converts CMOS SRAM into nonvolatile memory
Unconditionally write-protects SRAM when VCC is out of tolerance
Automatically switches to battery backup supply when VCC power failure occurs
Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
Signals low-battery condition on active low Battery Warning output signal
Automatic VCC power-fail detection for 3.0V or 3.