DS12885S

? Drop-In Replacement for IBM AT Computer
Clock/Calendar
? RTC Counts Seconds, Minutes, Hours, Day, Date,
Month, and Year with Leap Year Compensation
Through 2099
? Binary or BCD Time Representation
? 12-Hour or 24-Hour Clock with AM and PM in
12-Hour Mode
? Daylight Saving Time Option
? Selectable Intel or Motorola Bus Timing
? Interfaced with Software as 128 RAM Locations
? 14 Bytes of Clock and Control Registers
? 114 Bytes of General-Purpose, Battery-Backed
RAM (113 Bytes in the DS12C887 and
DS12C887A)
? RAM Clear Function (DS12885, DS12887A, and
DS12C887A)
? Interrupt Output with Three Independently
Maskable Interrupt Flags