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.


  • 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)


タイトル language 分類 形式 サイズ 日付
star 1337AG Datasheet データシート PDF 321 KB
1337G Datasheet データシート PDF 359 KB
AN-828 Termination - LVPECL アプリケーションノート PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers アプリケーションノート PDF 170 KB
AN-845 Termination - LVCMOS アプリケーションノート PDF 146 KB
AN-842 Thermal Considerations in Package Design and Selection アプリケーションノート PDF 495 KB
AN-840 Jitter Specifications for Timing Signals アプリケーションノート PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations アプリケーションノート PDF 115 KB
AN-839 RMS Phase Jitter アプリケーションノート PDF 233 KB
AN-815 Understanding Jitter Units アプリケーションノート PDF 565 KB
AN-827 Application Relevance of Clock Jitter アプリケーションノート PDF 1.15 MB
AN-805 Recommended Ferrite Beads アプリケーションノート PDF 121 KB
PCN# : A2003-01 Add Greatek Taiwan as an Alternate Assembly Location on Select Packages 製品変更通知 PDF 113 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly 製品変更通知 PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly 製品変更通知 PDF 611 KB
PCN# : W1101-02R4 Fab 4 to TSMC 製品変更通知 PDF 70 KB
PCN# : W1101-02R3 Fab 4 to TSMC 製品変更通知 PDF 71 KB
PCN# : W1101-02R2 Fab 4 to TSMC 製品変更通知 PDF 67 KB
PCN# : A1208-06 Changed of Assembly Location and Crystal 製品変更通知 PDF 1.06 MB
IDT Clock Generation Overview 概要 PDF 1.83 MB
Real Time Clocks 製品概要 PDF 441 KB