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IDT1339 - REAL-TIME CLOCK

General Description

The IDT1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output.

Address and data are transferred serially through an I2C bus.

Key Features

  • Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year with leap-year compensation valid up to 2100.
  • Packaged in 8-pin MSOP, 8-pin SOIC, or 16-pin SOIC (surface-mount package with an integrated crystal).
  • Fast mode I2C Serial interface.
  • Two time-of-day alarms.
  • Programmable square-wave output.
  • Oscillator stop flag.
  • Automatic power-fail detect and switch circuitry.
  • Trickle-charge capability.

📥 Download Datasheet

Datasheet Details

Part number IDT1339
Manufacturer IDT
File Size 319.48 KB
Description REAL-TIME CLOCK
Datasheet download datasheet IDT1339 Datasheet

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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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REAL-TIME CLOCK WITH SERIAL I2C INTERFACE DATASHEET IDT1339 General Description The IDT1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-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. The IDT1339 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time, date, and alarm operation.