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Name: DS1308U-18+T
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1308U-18+T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc./Maxim Integrated DS1308U-18+T

Part No.:: DS1308U-18+T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

Datasheet:: DS1308U-18+T.pdf

Description:: IC RTC CLK/CALENDAR I2C 8-UMAX

In Stock:: 3936

Quantity:: Add To Cart

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DS1308U-18+T Specifications

Package/Case:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Leap Year, NVSRAM, Square Wave Output
MemorySize:
56B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
I²C, 2-Wire Serial
Voltage-Supply:
1.71V ~ 5.5V
Voltage-SupplyBattery:
1.3V ~ 5.5V
Current-Timekeeping(Max):
100µA @ 200µA @ 1.89V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

DS1308U-18+T this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS1308U-18+T 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 DS1308U-18+T 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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DS1308U-18+T information

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Basic introduction and simple engineering application of DS1308U-18+T

DS1308U-18+T is a real-time clock (RTC) chip commonly used in electronic projects requiring precise timekeeping functionality. It offers accurate timekeeping capabilities, low power consumption, and simple interfacing, making it suitable for a wide range of applications.

Application Scenario:

In a digital clock project, DS1308U-18+T can be utilized to maintain accurate timekeeping and drive the display to show the current time.

Circuit Design:

To create a digital clock using DS1308U-18+T, follow these steps:

1. RTC Connection:

Connect DS1308U-18+T to the microcontroller or development board using the Inter-Integrated Circuit (I2C) protocol. Wire the SDA (serial data) and SCL (serial clock) pins of DS1308U-18+T to the corresponding pins on the microcontroller, such as SDA to SDA and SCL to SCL.

2. Power Supply:

Provide power to DS1308U-18+T by connecting its VCC pin to a regulated 5V power source. Ensure proper decoupling capacitors are used to stabilize the power supply and minimize noise.

3. Crystal Oscillator:

Connect an external 32.768 kHz crystal oscillator to the X1 and X2 pins of DS1308U-18+T to ensure accurate timekeeping. The crystal oscillator frequency is critical for the RTC's accuracy.

4. Display Interface:

Connect a display module, such as an LCD or LED display, to the microcontroller to show the current time obtained from DS1308U-18+T. Implement appropriate firmware to retrieve time data from the RTC and format it for display.

5. User Interaction:

Include user interface elements, such as buttons or a touchscreen, to allow users to set the time on the digital clock. Implement firmware routines to handle user input and update the RTC accordingly.

Experiment Steps:

To experiment with DS1308U-18+T and understand its functionality, follow these steps:

1. Hardware Setup:

Connect DS1308U-18+T to a microcontroller development board or Arduino using jumper wires. Ensure proper connections for power, I2C communication, and the crystal oscillator.

2. Software Configuration:

Download and install the necessary libraries for DS1308U-18+T on the microcontroller platform. Write a simple firmware code to initialize the RTC and read the current time.

3. Time Readout:

Run the firmware code on the microcontroller and observe the time readout from DS1308U-18+T. Verify that the time matches the current real-time clock.

4. Time Setting:

Implement functionality in the firmware to set the time on DS1308U-18+T using user input from buttons or a serial interface. Test the time-setting feature to ensure accuracy and reliability.

5. Display Integration:

Connect a display module to the microcontroller and update the firmware to display the current time obtained from DS1308U-18+T. Verify that the displayed time matches the RTC's time.

Considerations:

When working with DS1308U-18+T, consider the following:

- Crystal Accuracy: Ensure the external crystal oscillator's accuracy meets the RTC's requirements for precise timekeeping.

- Power Supply Stability: Maintain a stable power supply to DS1308U-18+T to prevent time drift and ensure continuous operation.

- Firmware Optimization: Write efficient firmware code to minimize power consumption and maximize performance for prolonged battery-powered operation.

- User Interface Design: Design an intuitive user interface for setting the time and viewing the clock display, considering the project's intended use and target audience.

- Testing and Calibration: Test the digital clock thoroughly under various conditions to ensure accurate timekeeping and reliability over time. Calibrate the RTC if necessary to compensate for any drift.

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6. What is the process for return or replacement of DS1308U-18+T?

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 DS1308U-18+T we delivered, we will accept the replacement or return of the DS1308U-18+T 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 DS1308U-18+T.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations