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Name: DS1391U-18+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1391U-18+
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 DS1391U-18+

Part No.:: DS1391U-18+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Datasheet:: DS1391U-18+.pdf

Description:: IC RTC CLK/CALENDAR SPI 10-USOP

In Stock:: 2406

Quantity:: Add To Cart

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DS1391U-18+ Specifications

Package/Case:
10-TFSOP, 10-MSOP (0.118, 3.00mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Square Wave Output, Trickle-Charger
MemorySize:
-
TimeFormat:
HH:MM:SS:hh (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
SPI
Voltage-Supply:
1.71V ~ 1.89V
Voltage-SupplyBattery:
1.3V ~ 3.7V
Current-Timekeeping(Max):
100µA @ 1.71V ~ 1.89V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

DS1391U-18+ this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1391U-18+ 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 DS1391U-18+ 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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DS1391U-18+ information

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Basic introduction and simple engineering application of DS1391U-18+

DS1391U-18+ is a real-time clock (RTC) module commonly used in electronic projects and systems requiring precise timekeeping functionality. It integrates a battery-backed RTC with an I2C interface, making it easy to interface with microcontrollers and other digital devices.

Application Scenario:

In a home automation project, DS1391U-18+ can be utilized to timestamp events, schedule tasks, and synchronize various devices within the system, such as turning lights on and off at specific times.

Circuit Design:

To incorporate DS1391U-18+ into a home automation project, follow these steps:

1. Connection Setup:

Connect DS1391U-18+ to the microcontroller or single-board computer (SBC) via the I2C bus. Typically, this involves connecting the SDA (data) and SCL (clock) pins of the module to the corresponding pins on the microcontroller or SBC.

2. Power Supply:

Ensure that DS1391U-18+ is powered properly. It typically requires a 3.3V or 5V power supply, depending on the voltage compatibility of the microcontroller or SBC being used. Connect the VCC and GND pins of the module to the appropriate power supply pins.

3. Initialization:

Write initialization code in the firmware of the microcontroller or SBC to configure DS1391U-18+ settings such as time format (12-hour or 24-hour), alarm settings, and square wave output frequency if needed.

4. Timekeeping:

Utilize the I2C communication protocol to read and write time data to DS1391U-18+. Implement functions in the firmware to set the current time, read the time, and update the time as needed.

5. Task Scheduling:

Use DS1391U-18+ to schedule tasks or events within the home automation system. For example, set alarms to trigger actions such as turning on lights, activating security systems, or adjusting temperature settings.

6. User Interface:

Integrate a user interface, such as buttons, switches, or a graphical interface, to allow user interaction with the home automation system. Use the microcontroller or SBC to interpret user inputs and control DS1391U-18+ accordingly.

Considerations:

When using DS1391U-18+ in a project, consider the following:

- Power Backup: Ensure that a backup battery is installed to maintain timekeeping functionality in case of main power loss.

- I2C Communication: Properly configure and handle I2C communication in the firmware to prevent data corruption and ensure reliable operation.

- Time Accuracy: Regularly synchronize DS1391U-18+ with an accurate time source to maintain precise timekeeping accuracy.

- Firmware Debugging: Implement debugging features in the firmware to troubleshoot any issues related to DS1391U-18+ communication or functionality.

- Integration Testing: Thoroughly test the entire home automation system to verify proper integration and functionality of DS1391U-18+ within the system.

DS1391U-18+ FAQ

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3. Are the DS1391U-18+ price and inventory displayed accurate?

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6. What is the process for return or replacement of DS1391U-18+?

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 DS1391U-18+ we delivered, we will accept the replacement or return of the DS1391U-18+ 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 DS1391U-18+.

(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