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DS1501YZT&R

Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks

Product Category: Real Time Clocks
Mfr. Part #
DS1501YZ+T&R
Manufacturer: Analog Devices Inc.
Package: Reel
Lead Free Status /RoHS Status:
Data Sheet: DS1501YZ+T&R Datasheet
Inventory: In Stock

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Mfr. Part #: DS1501YZ+T&R

Specifications
Product Details

Specifications

Manufacturer Analog Devices Inc.

Mounting Style SMD/SMT

Package / Case SOIC-28

RTC Bus Interface Parallel

Date Format YYYY-MM-DD

Time Format HH:MM:SS

RTC Memory Size 256 B

Supply Voltage - Max 5.5 V

Supply Voltage - Min 4.5 V

Minimum Operating Temperature 0 C

Maximum Operating Temperature + 70 C

Packaging Reel

Function Alarm, Calendar, Clock, Watchdog Timekeeper

Series DS1501YZ+

Brand Analog Devices / Maxim Integrated

Product Type Real Time Clocks

Standard Pack Qty 1000

Subcategory Clock & Timer ICs

Product Details

GENERAL DESCRIPTION

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.

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 Â±1 Minute/Month at +25Â°C
Day-of-Week/Date Alarm Register
Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF Crystal (DS1501)
Battery Voltage-Level Indicator Flags
Available as Chip (DS1501) or Stand-Alone
Encapsulated DIP Module with Embedded
Battery and Crystal (DS1511)

APPLICATIONS

Remote Systems
Battery-Backed Systems
Telecom Switches
Office Equipment
Consumer Electronics
Underwriters Laboratories (UL) Recognized

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Mfr. Part #: DS1501YZ+T&R