Maxim Integrated DS1501
The DS1501/DS1511 are full-function, year 2000compliant 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. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour binary-coded decimal (BCD) format.| Part No. | DS1501 |
|---|---|
| Datasheet | DS1501 Download |
| Manufacturer |  Maxim Integrated |
| Description | Y2K-Compliant Watchdog Real-Time Clocks |
| Buy | Stock & Price |
GENERAL DESCRIPTION
User access to all registers within the DS1501/DS1511 is accomplished with a byte-wide interface, as shown in Figure 8. Corrections for day of month and leap year are made automatically.APPLICATIONS
Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet.FEATURES
● BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100● Programmable Watchdog Timer and RTC Alarm
● Century Register; Y2K-Compliant RTC
● +3.3 (W) or +5V (Y) 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 SRAM
● Auxiliary Battery Input
● Accuracy of DS1511 Better than ±1 Minute/Month at +25°C
● Day-of-Week/Date Alarm Register
● Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF C...
