DS1553, DS1553P

64kB、不揮発性、Y2K対応タイムキーピングRAM


製品の特定バージョンの最新供給状況はこちらでご確認ください。

説明

The DS1553 is a full-function, year-2000-compliant (Y2KC) real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and "8k x 8 nonvolatile static RAM (NV SRAM)." User access to all registers within the DS1553 is accomplished with a bytewide interface as shown in Figure 1. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour BCD format. Corrections for day of month and leap year are made automatically.
DS1553、DS1553P:ブロックダイアグラム DS1553、DS1553P:ブロックダイアグラム 拡大表示+

主な特長

  • Integrated NV SRAM, RTC, Crystal, Power-Fail Control Circuit, and Lithium Energy Source
  • Clock Registers are Accessed Identically to the Static RAM; These Registers are Resident in the 16 Top RAM Locations
  • Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
  • Precision Power-On Reset
  • Programmable Watchdog Timer and RTC Alarm
  • BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap Year Compensation Valid Up to the Year 2100
  • Battery Voltage Level Indicator Flag
  • Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance
  • Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
製品の信頼性レポート: DS1553P.pdf  DS1553.pdf 
デバイス   ウェハープロセス   プロセス技術   サンプルサイズ   不合格   FIT (25°C)   FIT (55°C)   Material Composition  

注: 不良率はプロセス技術ごとにまとめられ、関連する型番にマッピングされます。 不良率はテストされたユニット数に大きく依存します。

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