DS1511
DESCRIPTION
The DS1501/DS1511 are full-function, year 2000pliant real-time clock/calendars (RTCs) with an RTC alarm, watchdog timer, power-on reset, battery monitors, 256 bytes NV SRAM, and a 32.768k Hz output. User access to all registers within the DS1501/DS1511 is acplished 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.
FEATURES
- BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year pensation Valid Up to the Year 2100 Programmable Watchdog Timer and RTC Alarm Century Register; Y2K-pliant RTC +3.3 or +5V Operation Precision Power-On Reset Power-Control Circuitry Support System Power On from Date/Day/Time Alarm or Key Closure/Modem-Detect Signal 256 Bytes Battery-Backed NV SRAM Auxiliary Battery Input Accuracy of DS1511 Better than ±1...
