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DS1603 Datasheet Elapsed Time Counter

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: www. maxim-i c.com www.maxim-ic.com DS1603 Elapsed Time Counter.

General Description

RST CLK DQ GND VCC OSC NC - Reset - Clock - Data Input/Output - Ground - +5V - 1Hz Oscillator Output - No Connect DESCRIPTION The DS1603 is a real-time clock/elapsed time counter designed to count seconds when VCC power is applied and continually count seconds under battery backup power with an additional counter regardless of the condition of VCC.

The continuous counter can be used to derive time of day, week, month, and year by using a software algorithm.

The VCC powered counter will automatically record the amount of time that VCC power is applied.

Key Features

  • Two 32-bit counters keep track of real-time and elapsed time.
  • Counters keep track of seconds for over 125 years.
  • Battery powered counter counts seconds from the time battery is attached until VBAT is less than 2.5V.
  • VCC powered counter counts seconds while VCC is above VTP and retains the count in the absence of VCC under battery backup power.
  • Clear function resets selected counter to 0.
  • Read/write serial port affords low pin count.
  • Powered internally by a lit.

DS1603 Distributor