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Name: DS1337U
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1337U
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 DS1337U

Part No.:: DS1337U

Manufacturer:: Analog Devices Inc./Maxim Integrated

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

Datasheet:: DS1337U.pdf

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

In Stock:: 3997

Quantity:: Add To Cart

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DS1337U Specifications

Package/Case:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Square Wave Output
MemorySize:
-
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
I²C, 2-Wire Serial
Voltage-Supply:
1.8V ~ 5.5V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
0.6µA @ 1.3V ~ 1.8V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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DS1337U information

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Basic introduction and simple engineering application of DS1337U

DS1337U is a real-time clock (RTC) chip manufactured by Maxim Integrated, offering accurate timekeeping and versatile functionality for various applications. It comes in a compact SOP-8 package, making it suitable for integration into small-scale projects and embedded systems.

Application Scenario:

In electronic projects requiring precise timekeeping, DS1337U can be utilized to maintain accurate timestamps, schedule events, and synchronize operations. One common application is in data logging systems, where DS1337U ensures reliable timekeeping for recording data at specific intervals.

Circuit Design:

To incorporate DS1337U into a simple project, follow these steps:

1. Connection to Microcontroller:

Connect DS1337U to the microcontroller's I2C bus. Typically, this involves connecting the SDA (serial data) and SCL (serial clock) pins of DS1337U to the corresponding pins on the microcontroller, ensuring proper pull-up resistors are in place.

2. Power Supply:

Provide power to DS1337U by connecting its VCC pin to a stable voltage source, typically +5V or +3.3V, depending on the microcontroller's voltage requirements. Ensure proper decoupling capacitors are used to minimize voltage fluctuations.

3. Crystal Oscillator:

Connect an external crystal oscillator to the X1 and X2 pins of DS1337U to enable accurate timekeeping. Choose a crystal with the desired frequency (commonly 32.768 kHz) for precise clock generation.

4. Backup Battery:

To maintain timekeeping functionality during power loss, connect a backup battery, such as a coin cell battery, to the VBAT pin of DS1337U. This ensures uninterrupted operation and preserves timekeeping data.

5. Initialization and Configuration:

Write initialization and configuration code in the microcontroller firmware to set the current time, date, and other parameters in DS1337U. Utilize the I2C communication protocol to communicate with DS1337U and access its registers for configuration.

Experiment:

To demonstrate DS1337U's functionality, consider a simple experiment to display real-time clock information on an LCD display using an Arduino microcontroller:

Components Needed:

- Arduino board (e.g., Arduino Uno)

- DS1337U RTC module

- 16x2 LCD display

- Jumper wires

Experiment Steps:

1. Hardware Setup:

Connect the DS1337U RTC module to the Arduino board using jumper wires. Ensure proper connections for SDA, SCL, VCC, GND, and, if applicable, the backup battery.

2. LCD Connection:

Connect the LCD display to the Arduino board according to its pinout, typically utilizing digital pins for data and control signals.

3. Arduino Sketch:

Write an Arduino sketch to initialize the DS1337U RTC module, retrieve current time and date information, and display it on the LCD display. Utilize the Wire library for I2C communication with DS1337U.

4. Upload and Run:

Upload the sketch to the Arduino board and observe the real-time clock information displayed on the LCD. Verify the accuracy of timekeeping by comparing it with an external time source if available.

Conclusion:

In this experiment, we've demonstrated the basic functionality of DS1337U as a real-time clock chip and its application in a simple project using an Arduino microcontroller. By integrating DS1337U into your projects, you can ensure accurate timekeeping and synchronization, enabling various time-sensitive applications.

DS1337U FAQ

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6. What is the process for return or replacement of DS1337U?

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 DS1337U we delivered, we will accept the replacement or return of the DS1337U 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 DS1337U.

(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