Y2K-Compliant Watchdog Real-Time Clocks

Part Number	Status
DS1501	Active: In Production. See Ordering Information for details.
DS1511	Active: In Production. See Ordering Information for details.

The DS1501/DS1511 are full-function, year 2000-compliant real-time clock/calendars (RTCs) with an RTC alarm, watchdog timer, power-on reset, battery monitors, 256 bytes NV SRAM, and a 32.768kHz output. User access to all registers within the DS1501/DS1511 is accomplished with a byte-wide interface, as shown in Figure 8. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour binary-coded decimal (BCD) format. Corrections for day of month and leap year are made automatically.

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Errata DS1501 1501A7.pdf Errata DS1511 1501A7.pdf Errata DS1501 1501A6.pdf Errata DS1511 1501A6.pdf