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DS12885 Datasheet Real Time Clock

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: Rev 0; 6/05 Real-Time Clock General.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287.

The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of batterybacked static RAM (113 bytes in the DS12C887 and DS12C887A).

The DS12887 integrates a quartz crystal and lithium energy source into a 24-pin encapsulated DIP package.

Key Features

  • 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 Byt.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Dallas Semiconductor Logo DS12885 Real-Time Clock Dallas Semiconductor
Dallas Semiconductor Logo DS12885Q Real-Time Clock Dallas Semiconductor
Dallas Semiconductor Logo DS12885T Real-Time Clock Dallas Semiconductor

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
DS12887 Real Time Clock
DS12887A Real Time Clock
DS1249W 3.3V 2048kb Nonvolatile SRAM
DS1265AB 8M Nonvolatile SRAM
DS1265Y 8M Nonvolatile SRAM
DS12C887 Real Time Clock
DS12C887A Real Time Clock
DS12CR887 (DS12xxx) RTC
DS12R885 (DS12xxx) RTC
DS12R887 (DS12xxx) RTC

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