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1337AG

Real-Time Clock With I2C Serial Interface

The 1337AG device is a low power serial real-time clock (RTC) 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 device 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.

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)
  • I2C Serial interface (Normal and Fast modes)
  • Two time-of-day alarms
  • Oscillator Stop Flag
  • Programmable square-wave output defaults to 32 kHz on power-up
  • Operating voltage of 1.8 to 5.5 V
  • Industrial temperature range (-40 to +85°C)

Product Specification

Outputs (#)Output TypeOutput Freq Range (kHZ)Input Freq (kHz)Inputs (#)Input TypeCore Voltage (V)
1LVCMOS0.001000, 4.096000, 8.192000, 32.76800032.7680001Crystal, None (Internal)1.8, 2.5, 3.3, 5, 5.5

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
1337AGCSRGIActivePIG16SOIC16IYesTubeCheck Availability
1337AGCSRGI8ActivePIG16SOIC16IYesReelCheck Availability
1337AGDCGIActiveDCG8SOIC8IYesTubeCheck Availability
1337AGDCGI8ActiveDCG8SOIC8IYesReelCheck Availability
1337AGDVGIActiveDVG8TSSOP8IYesTubeCheck Availability
1337AGDVGI8ActiveDVG8TSSOP8IYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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1337AG Datasheet Datasheet PDF 263 KB Sep 1, 2015
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1337G Datasheet Datasheet PDF 273 KB Aug 2, 2013
Apps Notes & White Papers
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AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
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AN-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
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AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
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AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
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AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
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AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 7, 2014
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AN-839 RMS Phase Jitter Application Note PDF 149 KB May 7, 2014
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AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
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AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
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AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCNs & PDNs
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PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
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PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
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PCN# : W1101-02R4 Fab 4 to TSMC Product Change Notice PDF 70 KB Jul 1, 2014
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PCN# : W1101-02R3 Fab 4 to TSMC Product Change Notice PDF 71 KB Apr 8, 2014
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PCN# : W1101-02R2 Fab 4 to TSMC Product Change Notice PDF 67 KB Jan 26, 2014
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PCN# : A1208-06 Changed of Assembly Location and Crystal Product Change Notice PDF 1.06 MB Nov 18, 2012
Other
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IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
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IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 25, 2016
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Real Time Clocks Product Brief PDF 441 KB May 1, 2008