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Name: DS1747W-120IND
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1747W-120IND
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 DS1747W-120IND

Part No.:: DS1747W-120IND

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 32-DIP Module (0.600, 15.24mm)

Datasheet:: DS1747W-120IND.pdf

Description:: IC RTC CLK/CALENDAR PAR 32-EDIP

In Stock:: 3145

Quantity:: Add To Cart

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DS1747W-120IND Specifications

Package/Case:
32-DIP Module (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM, Y2K
MemorySize:
512KB
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.97V ~ 3.63V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
2mA @ 3.3V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Through Hole

DS1747W-120IND this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1747W-120IND 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 DS1747W-120IND 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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DS1747W-120IND information

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Basic introduction and simple engineering application of DS1747W-120IND

DS1747W-120IND is a non-volatile, integrated circuit chip manufactured by Maxim Integrated. It combines a real-time clock (RTC) with a non-volatile static RAM (NVSRAM), offering reliable timekeeping and data storage functionalities.

Introduction:

The DS1747W-120IND integrates a 120kbit non-volatile static RAM with a real-time clock/calendar, making it suitable for applications requiring both timekeeping and data storage capabilities. It operates over a wide voltage range and can retain data for more than 10 years in the absence of power.

Application Scenario:

In a simple project, DS1747W-120IND can be used to build a digital clock with data logging capabilities. Here's a basic example:

Circuit Design:

To create a digital clock with data logging using DS1747W-120IND, follow these steps:

1. Circuit Connections:

Connect the DS1747W-120IND to a microcontroller or single-board computer using SPI or I2C communication protocols. Ensure proper wiring and power supply connections.

2. Real-Time Clock Setup:

Initialize the real-time clock settings, including time and date, using the microcontroller. Utilize the DS1747W-120IND's clock/calendar functionality to keep track of time accurately.

3. Data Logging:

Implement data logging functionality to store important events or sensor readings in the DS1747W-120IND's non-volatile memory. Use the microcontroller to read and write data to the NVSRAM.

4. User Interface:

Design a user interface to display the current time and logged data. This can be achieved using an LCD display, LEDs, or a graphical user interface (GUI) on a computer.

5. Power Management:

Ensure proper power supply and backup mechanisms to prevent data loss during power outages. Implement battery backup or capacitor-based power hold-up circuits to maintain DS1747W-120IND's operation.

Experiment Steps:

To understand the functionality of DS1747W-120IND through practical experimentation, follow these steps:

1. Initialization:

Connect the DS1747W-120IND to a microcontroller development board and initialize its clock/calendar settings to the current date and time.

2. Data Logging:

Write sample data, such as temperature readings or event timestamps, to the DS1747W-120IND's non-volatile memory using the microcontroller.

3. Retrieval:

Read the logged data from the DS1747W-120IND using the microcontroller and display it on an output device, such as an LCD screen or serial monitor.

4. Power Loss Simulation:

Simulate a power loss scenario by disconnecting the power supply to the system. Verify that the DS1747W-120IND retains its clock/calendar settings and logged data upon power restoration.

5. Data Modification:

Modify the logged data through the microcontroller and observe the changes reflected in the DS1747W-120IND's non-volatile memory.

Considerations:

When working with DS1747W-120IND, consider the following factors:

- Communication Protocol: Choose the appropriate communication protocol (SPI or I2C) based on your microcontroller's capabilities and interface requirements.

- Data Integrity: Implement error-checking mechanisms to ensure the integrity of data stored in the DS1747W-120IND's non-volatile memory.

- Backup Power: Design a reliable backup power system to prevent data loss during unexpected power interruptions.

- Clock Accuracy: Periodically synchronize the DS1747W-120IND's clock with an accurate time source to maintain accurate timekeeping.

- Memory Management: Optimize data storage and retrieval algorithms to maximize the lifespan of the DS1747W-120IND's non-volatile memory.

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6. What is the process for return or replacement of DS1747W-120IND?

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 DS1747W-120IND we delivered, we will accept the replacement or return of the DS1747W-120IND 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 DS1747W-120IND.

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

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