The 1338 is a serial real-time clock (RTC) device that consumes ultra-low power and provides a full binary-coded decimal (BCD) clock/calendar with 56 bytes of battery backed Non-Volatile Static RAM. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. Access to the clock/calendar registers is provided by an I2C interface capable of operating in fast I2C mode. Built-in Power-sense circuitry detects power failures and automatically switches to the backup supply, maintaining time and date operation.

特性

  • Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year with leap-year compensation valid up to 2100
  • 56-Byte battery-backed Non Volatile RAM for data storage
  • Fast mode I2C Serial interface
  • Automatic power-fail detect and switch circuitry
  • Programmable square-wave output
  • Packaged in 8-pin MSOP, 8-pin SOIC, or 16-pin SOIC (surface-mount package with an integrated crystal)
  • Industrial temperature range (-40°C to +85°C)

产品选择

下单器件 ID Part Status Core Voltage (V) Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active 2.5, 3.3, 5, 5.5 8 I 是的 Tube
Availability
Active 2.5, 3.3, 5, 5.5 8 I 是的 Reel
Availability
Active 2.5, 3.3, 5, 5.5 8 I 是的 Tube
Availability
Active 2.5, 3.3, 5, 5.5 8 I 是的 Reel
Availability

文档和下载

文档标题 其他语言 类型 文档格式 文件大小 日期
数据手册与勘误表
1338 Datasheet 数据手册 PDF 427 KB
Errata# : UEN-13-01 数据手册勘误表 PDF 421 KB
1338B-31 Datasheet 数据手册 PDF 541 KB
应用指南 &白皮书
AN-828 Termination - LVPECL 应用文档 PDF 322 KB
AN-845 Termination - LVCMOS 应用文档 PDF 146 KB
AN-844 Termination - AC Coupling Clock Receivers 应用文档 PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection 应用文档 PDF 495 KB
AN-840 Jitter Specifications for Timing Signals 应用文档 PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations 应用文档 PDF 115 KB
AN-839 RMS Phase Jitter 应用文档 PDF 233 KB
AN-827 Application Relevance of Clock Jitter 应用文档 PDF 1.15 MB
AN-815 Understanding Jitter Units 应用文档 PDF 565 KB
AN-805 Recommended Ferrite Beads 应用文档 PDF 121 KB
PCN / PDN
PCN# : A2003-01 Add Greatek Taiwan as an Alternate Assembly Location on Select Packages 产品变更通告 PDF 113 KB
PDN#: CQ-19-04 Product Discontinuance Notice 产品停产通告 PDF 1010 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PDN# : CQ-14-08 Manufacturing Discontinunce PDN 产品停产通告 PDF 486 KB
PCN# : A1403-03 Gold wire to Copper wire 产品变更通告 PDF 42 KB
PCN# : W1101-02R4 Fab 4 to TSMC 产品变更通告 PDF 70 KB
PCN# : W1101-02R3 Fab 4 to TSMC 产品变更通告 PDF 71 KB
PCN# : W1101-02R2 Fab 4 to TSMC 产品变更通告 PDF 67 KB
PCN# : A1208-01R1 Gold to Copper Wire 产品变更通告 PDF 254 KB
PCN# : A1208-06 Changed of Assembly Location and Crystal 产品变更通告 PDF 1.06 MB
PCN# : A1204-01R1 Revised Notification to Remove Selective Devices from TSSOP-16 产品变更通告 PDF 332 KB
其他
Clock Distribution Overview 日本語 概览 PDF 217 KB
Timing Solutions Products Overview 概览 PDF 4.11 MB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB
Real Time Clocks 产品简述 PDF 441 KB