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DS1500W

IC RTC CLK/CALENDAR PAR 32-DIP

Product Category: Real Time Clocks
Mfr. Part #
DS1500W
Manufacturer: Maxim Integrated
Package: 32-DIP Module (0.600", 15.24mm)
Lead Free Status /RoHS Status:
Data Sheet: DS1500W Datasheet
Inventory: In Stock

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Mfr. Part #: DS1500W

Specifications
Product Details

Specifications

Manufacturer Maxim Integrated

Product Category Real Time Clocks

Series -

Type Clock/Calendar

Packaging Tube

Package-Case 32-DIP Module (0.600", 15.24mm)

Operating-Temperature 0Â°C ~ 70Â°C

Mounting-Type Through Hole

Features Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K

Interface Parallel

Voltage-Supply 3 V ~ 3.6 V

Supplier-Device-Package 32-EDIP

Memory Capacity 256B

Time-Format HH:MM:SS (24 hr)

Date-Format YY-MM-DD-dd

Voltage-Supply-Battery 2.5 V ~ 3.7 V

Current-Timekeeping-Max 4mA @ 3V ~ 3.6V

Product Details

GENERAL DESCRIPTION

The DS1500 is a full-function, year 2000-compliant real-time clock/calendar(RTC) with an alarm, watchdog timer, power-on reset, battery monitors, 256 bytes of on-board nonvolatile (NV) SRAM, NV control for backing up an external SRAM, and a 32.768kHz output. User access to all registers within the DS1500 is accomplished with a byte-wide interface, as shown in Figure 7. 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 Compensation Valid Up to the Year 2100
Programmable Watchdog Timer and RTC Alarm
Century Register; Y2K-Compliant RTC
Automatic Battery Backup and Write Protection to External SRAM
+5V Operation
Precision Power-On Reset
Power-Control Circuitry Supports System Power-On from Date/Day/Time Alarm or Key Closure
256 Bytes User NV RAM
Auxiliary Battery Input
Accuracy Better than Â±1 Minute/Month at +25Â°C
Day-of-Week/Date Alarm Register
Battery Voltage-Level Indicator Flags
Industrial Temperature Range: -40Â°C to +85Â°C

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Mfr. Part #: DS1500W