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Name: BQ3285ESSTR
Brand: Texas Instruments
SKU: BQ3285ESSTR
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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Texas Instruments BQ3285ESSTR

Part No.:: BQ3285ESSTR

Manufacturer:: Texas Instruments

Package:: 24-SSOP (0.154, 3.90mm Width)

Datasheet:: BQ3285ESSTR.pdf

Description:: IC RTC CLK/CALENDAR PAR 24-QSOP

In Stock:: 14241

Quantity:: Add To Cart

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BQ3285ESSTR Specifications

Package/Case:
24-SSOP (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Bulk
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
MemorySize:
242B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.5V ~ 4V
Current-Timekeeping(Max):
300µA @ 5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

BQ3285ESSTR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ3285ESSTR 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 BQ3285ESSTR 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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BQ3285ESSTR information

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Basic introduction and simple engineering application of BQ3285ESSTR

BQ3285ESSTR is a low-power real-time clock (RTC) IC commonly used in electronic devices to provide accurate timekeeping functionality, especially in applications where power consumption is a critical concern.

Basic Introduction:

The BQ3285ESSTR integrates a quartz crystal oscillator and a battery backup input to maintain timekeeping functionality even when the main power source is disconnected. It communicates with the host microcontroller via the I2C interface, making it easy to integrate into various projects.

Application Scenario:

In a simple digital clock project, BQ3285ESSTR can be utilized to keep track of time accurately and display it on an LCD screen.

Experimental Setup:

To create a digital clock using BQ3285ESSTR, follow these steps:

1. Circuit Connection:

Connect BQ3285ESSTR to the microcontroller using the I2C interface. Ensure proper pull-up resistors are connected to the SDA and SCL lines for reliable communication.

2. Power Supply:

Provide power to the circuit, ensuring that the main power source and backup battery are connected to BQ3285ESSTR as per the datasheet recommendations.

3. LCD Display:

Connect an LCD display to the microcontroller to show the time. Configure the microcontroller to retrieve time data from BQ3285ESSTR via I2C and display it on the LCD screen.

4. Initialization:

Initialize BQ3285ESSTR by setting the current time and date. This can be done through the microcontroller by writing to the appropriate registers of BQ3285ESSTR using I2C communication.

5. Timekeeping:

Implement a routine in the microcontroller firmware to continuously update the time by reading data from BQ3285ESSTR. Ensure proper handling of leap years and daylight saving time adjustments if necessary.

6. User Interface:

Add buttons or other user input methods to the circuit to allow users to adjust the time settings if needed. Implement firmware logic to handle user interactions and update BQ3285ESSTR accordingly.

Conclusion:

In this project, we've demonstrated the basic functionality of BQ3285ESSTR as a real-time clock and its application in a simple digital clock project. By following these steps, beginners can gain hands-on experience in utilizing BQ3285ESSTR for timekeeping purposes in their electronic projects.

Considerations:

- Power Efficiency: Optimize the code to minimize power consumption, especially when running on battery power.

- Accuracy: Regularly synchronize the clock with an external time source to maintain accurate timekeeping.

- Error Handling: Implement error-checking mechanisms in the firmware to handle communication errors or clock synchronization issues.

- User Experience: Design the user interface to be intuitive and user-friendly for easy interaction with the digital clock.

- Component Selection: Choose components, especially the microcontroller and LCD display, that are compatible with BQ3285ESSTR and meet the project requirements.

BQ3285ESSTR FAQ

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6. What is the process for return or replacement of BQ3285ESSTR?

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 BQ3285ESSTR we delivered, we will accept the replacement or return of the BQ3285ESSTR 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 BQ3285ESSTR.

(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