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DS1543W-120

IC RTC CLK/CALENDAR PAR 28-EDIP

Product Category: Real Time Clocks
Mfr. Part #
DS1543W-120
Manufacturer: Maxim Integrated
Package: 28-DIP Module (0.600", 15.24mm)
Lead Free Status /RoHS Status:
Data Sheet: DS1543W-120 Datasheet
Inventory: In Stock

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Mfr. Part #: DS1543W-120

Specifications
Product Details

Specifications

Manufacturer Maxim Integrated

Product Category Real Time Clocks

Series -

Type Clock/Calendar

Packaging Tube

Package-Case 28-DIP Module (0.600", 15.24mm)

Operating-Temperature 0Â°C ~ 70Â°C

Mounting-Type Through Hole

Features Alarm, Leap Year, NVSRAM, Watchdog Timer

Interface Parallel

Voltage-Supply 2.97 V ~ 3.63 V

Supplier-Device-Package 28-EDIP

Memory Capacity 8KB

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

Date-Format YY-MM-DD-dd

Voltage-Supply-Battery -

Current-Timekeeping-Max 2mA @ 3.3V

Product Details

DESCRIPTION

The DS1556 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 128k x 8 nonvolatile static RAM. User access to all registers within the DS1556 is accomplished with a byte-wide 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.

FEATURES

â– Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source
â– Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations
â– Century Byte Register (i.e., Y2K Compliant)
â– Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
â– Precision Power-On Reset
â– Programmable Watchdog Timer and RTC Alarm
â– BCD-Coded Year, Month, Date, Day, Hours, Minutes, and seconds with Automatic LeapYear Compensation Valid Up to the Year 2100
â– Battery Voltage-Level Indicator Flag
â– Power-Fail Write Protection Allows for 10% VCC Power-Supply Tolerance
â– Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
â– Also Available in Industrial Temperature Range: -40Â°C to +85Â°C

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Mfr. Part #: DS1543W-120