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DS1339B - Serial Real-Time Clock

Description

The DS1339B serial real-time clock (RTC) is a lowpower clock/date device with two programmable timeof-day alarms and a programmable square-wave output.

Address and data are transferred serially through an I2C bus.

Features

  • Drop-In Replacement for DS1339.
  • Supports High-ESR Crystals Up to 100kΩ to Allow Crystals to be Optimized for Cost and Space.
  • Completely Manages All Timekeeping Functions.
  • Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2200.
  • Two Time-of-Day Alarms.
  • Programmable Square-Wave Output Signal.
  • Low-Power Operation Extends Battery Backup Run Time.

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Other Datasheets by Maxim Integrated (Analog Devices)

Part Number Description
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DS1339B EVALUATION KIT AVAILABLE Low-Current, I2C, Serial Real-Time Clock for High-ESR Crystals General Description The DS1339B serial real-time clock (RTC) is a lowpower clock/date device with two programmable timeof-day alarms and a programmable square-wave output. Address and data are transferred serially through an I2C bus. The clock/date provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
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