What is the Additional Feature ?

Name: DS1644-120
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1644-120
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 DS1644-120

Part No.:: DS1644-120

Manufacturer:: Analog Devices Inc./Maxim Integrated

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

Datasheet:: DS1644-120.pdf

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

In Stock:: 3930

Quantity:: Add To Cart

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DS1644-120 Specifications

Package/Case:
28-DIP Module (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM
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 @ 4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

DS1644-120 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1644-120 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 DS1644-120 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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DS1644-120 information

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Basic introduction and simple engineering application of DS1644-120

DS1644-120 is a temperature-compensated real-time clock (RTC) integrated circuit manufactured by Maxim Integrated. It combines a precision temperature-compensated voltage reference, a real-time clock/calendar, and nonvolatile static RAM (NV SRAM) in a single chip package.

Application Scenario:

In electronic projects requiring accurate timekeeping and event logging, DS1644-120 can be utilized. For example, it can be employed in data loggers, time-stamping systems, and battery-backed systems where maintaining time during power-off periods is crucial.

Experiment Setup:

To understand the functionality of DS1644-120 and its application in a simple project, follow these steps:

1. Circuit Connection:

Connect DS1644-120 to a microcontroller or development board. Ensure proper power supply connections and signal lines for communication.

2. Initialization:

Initialize the DS1644-120 by configuring the clock/calendar settings and NV SRAM memory space. Use the appropriate commands or functions provided by the manufacturer's datasheet or supporting libraries.

3. Timekeeping:

Set the current date and time in the RTC registers of DS1644-120. Implement functions to read and update the time periodically, ensuring accurate timekeeping even during power interruptions.

4. Event Logging:

Utilize the NV SRAM portion of DS1644-120 to log events or data samples along with their timestamps. Implement functions to write data to specific memory locations and retrieve them as needed.

5. Power Management:

Implement power-fail detection mechanisms to switch to backup power and maintain RTC operation during power loss scenarios. Utilize battery backup or supercapacitors to ensure uninterrupted timekeeping.

Considerations:

When working with DS1644-120, consider the following:

- Temperature Compensation: Understand the temperature characteristics of the RTC and compensate for temperature variations to maintain accuracy.

- Data Integrity: Implement error-checking mechanisms to ensure data integrity in NV SRAM, especially during write and read operations.

- Backup Power: Choose appropriate backup power sources and implement failover mechanisms to prevent data loss and maintain RTC operation during power disruptions.

- Interfacing: Ensure proper interfacing with the microcontroller or host system, following the recommended communication protocols and signal levels specified in the datasheet.

- Testing: Thoroughly test the functionality of the DS1644-120 implementation under various operating conditions to ensure reliability and accuracy.

DS1644-120 FAQ

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6. What is the process for return or replacement of DS1644-120?

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 DS1644-120 we delivered, we will accept the replacement or return of the DS1644-120 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 DS1644-120.

(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