BQ3285 Datasheet | UNITRODE

Real-Time Clock (RTC) Features ® Direct clock/calendar replacement for IBM® AT-patible puters and other applications ® Functionally patible with the DS1285 - Closely matches MC146818A pin configuration ® 114 bytes of general nonvolatile storage ® 160ns cycle time allows fast bus operation ® Selectable Intel or Motorola bus timing ® Less than 0.5µA load under battery operation ® 14 bytes for clock/calendar and control ® BCD or binary format for clock and calendar data ® Calendar in day of the week, day of the month, months, and years, with automatic leap-year adjustment ® Time of day in seconds, minutes, and hours - 12- or 24-hour format - Optional daylight saving...