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Name: DS1643AL-120
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1643AL-120
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 DS1643AL-120

Part No.:: DS1643AL-120

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 34-LPM

Datasheet:: DS1643AL-120.pdf

Description:: IC RTC CLK/CALENDAR PAR 34-LPM

In Stock:: 3434

Quantity:: Add To Cart

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DS1643AL-120 Specifications

Package/Case:
34-LPM
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM
MemorySize:
8KB
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:
0°C ~ 70°C
MountingType:
Surface Mount

DS1643AL-120 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1643AL-120 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 DS1643AL-120 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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DS1643AL-120 information

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Basic introduction and simple engineering application of DS1643AL-120

DS1643AL-120 is a real-time clock (RTC) IC manufactured by Maxim Integrated. It integrates a battery-backed, full binary-coded decimal (BCD) clock/calendar, and 114 bytes of non-volatile static RAM (NV SRAM) in a small package.

Introduction:

DS1643AL-120 is widely used in electronic devices requiring timekeeping and data storage capabilities, such as industrial control systems, medical equipment, and consumer electronics.

Features:

- Real-Time Clock: Provides accurate timekeeping information, including hours, minutes, seconds, day, date, month, and year.

- Non-Volatile Static RAM: Stores critical data even when the power supply is disconnected, ensuring data integrity and reliability.

- Battery Backup: Utilizes an external battery to maintain clock and memory operation during power loss or shutdown.

- I2C Interface: Communicates with the microcontroller or host system through the I2C serial interface, enabling easy integration into various applications.

Application Example:

In a digital alarm clock project, DS1643AL-120 can be utilized to provide accurate timekeeping functionality and store alarm settings even when the main power is off.

Project Setup:

1. Connection: Connect DS1643AL-120 to the microcontroller using the I2C interface. Ensure proper pull-up resistors are connected to the SDA and SCL lines.

2. Power Supply: Provide a stable power supply to DS1643AL-120 and connect an external battery to maintain clock and memory operation during power loss.

3. Initialization: Initialize the RTC and NV SRAM by sending appropriate commands through the I2C interface. Set the current time and date, along with any alarm configurations.

4. Timekeeping: Continuously read the time from DS1643AL-120 and update the display accordingly. Ensure proper handling of leap years and daylight saving time if required.

5. Alarm Functionality: Implement alarm functionality by comparing the current time with the configured alarm time stored in DS1643AL-120. Activate alarm signals or trigger external events accordingly.

6. User Interface: Design a user interface to set alarm times and interact with the clock. Utilize buttons or a touchscreen display for user input and feedback.

Experiment:

To understand the functionality of DS1643AL-120 better, follow these steps:

1. Hardware Setup: Connect DS1643AL-120 to a microcontroller development board or evaluation kit using jumper wires.

2. Software Setup: Install the necessary development tools and libraries for the microcontroller platform. Write a simple program to initialize DS1643AL-120 and read the current time.

3. Time Display: Display the current time obtained from DS1643AL-120 on an LCD or serial monitor connected to the microcontroller.

4. Battery Backup Test: Disconnect the main power supply and observe if DS1643AL-120 maintains accurate timekeeping using the backup battery.

5. Alarm Test: Set an alarm time using the microcontroller program and verify if the alarm triggers correctly at the specified time.

Conclusion:

DS1643AL-120 offers reliable timekeeping and non-volatile memory storage capabilities, making it suitable for various applications requiring accurate timekeeping and data retention. By implementing a simple project and conducting experiments, students and beginners can grasp the fundamental concepts and functionalities of this versatile IC.

DS1643AL-120 FAQ

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6. What is the process for return or replacement of DS1643AL-120?

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 DS1643AL-120 we delivered, we will accept the replacement or return of the DS1643AL-120 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 DS1643AL-120.

(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