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Name: DS1744-70IND+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1744-70IND+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated DS1744-70IND+

Part No.:: DS1744-70IND+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-DIP Module (0.600, 15.24mm)

Datasheet:: DS1744-70IND+.pdf

Description:: IC RTC CLK/CALENDAR PAR 28-EDIP

In Stock:: 824

Quantity:: Add To Cart

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DS1744-70IND+ Specifications

Package/Case:
28-DIP Module (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM, Y2K
MemorySize:
32KB
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
4mA @ 5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Through Hole

DS1744-70IND+ this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1744-70IND+ price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for DS1744-70IND+ to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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DS1744-70IND+ information

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Basic introduction and simple engineering application of DS1744-70IND+

DS1744-70IND+ is a non-volatile static RAM (NVSRAM) integrated circuit with a real-time clock (RTC), manufactured by Maxim Integrated. It combines the functions of static RAM, an RTC, and a lithium battery in a single package.

Introduction:

DS1744-70IND+ is widely used in various applications requiring non-volatile data storage with timekeeping capabilities, such as industrial automation, consumer electronics, and medical devices.

Features:

Battery-backed non-volatile static RAM
Real-time clock with calendar
Automatic power-fail detection and switch circuitry
Wide operating voltage range
Serial interface for configuration and data access

Application Scenario:

In a digital door lock system, DS1744-70IND+ can be utilized to store access codes and maintain the current date and time even during power outages.

System Design:

To create a digital door lock system using DS1744-70IND+, follow these steps:

1. Connection Setup:

Connect DS1744-70IND+ to the microcontroller or system-on-chip (SoC) using the serial interface, typically SPI or I2C. Ensure proper connections for data transfer and power supply.

2. Access Code Storage:

Store access codes securely in the non-volatile static RAM of DS1744-70IND+. Utilize encryption algorithms if necessary to enhance security.

3. Real-Time Clock Integration:

Integrate the real-time clock functionality of DS1744-70IND+ to maintain the current date and time. Update the clock regularly to ensure accuracy.

4. Power Management:

Implement power-fail detection and switch circuitry to detect power loss and switch to the backup battery to maintain data integrity and RTC operation.

5. User Interface:

Design a user interface, such as a keypad or touchscreen, to input access codes and interact with the digital door lock system. Use the microcontroller to handle user input and control system operation.

Experiment:

To understand the functionality of DS1744-70IND+, you can conduct a simple experiment to simulate a digital door lock system:

1. Hardware Setup:

Connect DS1744-70IND+ to a microcontroller development board or a microcontroller module using SPI or I2C interface.

2. Access Code Storage:

Write sample access codes to the non-volatile static RAM of DS1744-70IND+ using the microcontroller.

3. Real-Time Clock:

Set the current date and time on DS1744-70IND+ through the microcontroller.

4. Power Simulation:

Simulate a power loss scenario by disconnecting the power supply to the system. Verify that DS1744-70IND+ switches to the backup battery and maintains data integrity.

5. User Interaction:

Implement a simple user interface on the microcontroller to input access codes and verify access control based on stored codes.

Conclusion:

DS1744-70IND+ offers a reliable solution for non-volatile data storage and real-time clock functionality in various applications. By understanding its features and conducting experiments, students and beginners can gain practical insights into its usage and integration in electronic systems.

DS1744-70IND+ FAQ

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6. What is the process for return or replacement of DS1744-70IND+?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS1744-70IND+ we delivered, we will accept the replacement or return of the DS1744-70IND+ only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DS1744-70IND+.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations