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Name: BQ4802LYDWR
Brand: Texas Instruments
SKU: BQ4802LYDWR
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 BQ4802LYDWR

Part No.:: BQ4802LYDWR

Manufacturer:: Texas Instruments

Package:: 28-SOIC (0.295, 7.50mm Width)

Datasheet:: BQ4802LYDWR.pdf

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

In Stock:: 946

Quantity:: Add To Cart

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BQ4802LYDWR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ4802LYDWR 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 BQ4802LYDWR 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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Basic introduction and simple engineering application of BQ4802LYDWR

BQ4802LYDWR is a real-time clock (RTC) chip commonly used in electronic systems for timekeeping applications. It features an integrated temperature-compensated crystal oscillator (TCXO), non-volatile memory (NVM), and alarm functions.

Application Scenario:

In consumer electronics, BQ4802LYDWR can be utilized in devices such as digital watches, electronic calendars, and IoT devices for accurate timekeeping and scheduling functionalities.

Experiment Setup:

To understand the functionality of BQ4802LYDWR, conduct the following experiment:

1. Circuit Connection:

Connect BQ4802LYDWR to a microcontroller development board, such as Arduino or Raspberry Pi, using the I2C interface. Ensure proper wiring of SDA (Serial Data) and SCL (Serial Clock) pins for communication.

2. Power Supply:

Provide a stable power supply to BQ4802LYDWR within the specified voltage range (e.g., 1.8V to 5.5V) to ensure reliable operation. Utilize voltage regulators if necessary to meet the required voltage levels.

3. Initialization:

Write initialization code in the microcontroller firmware to configure BQ4802LYDWR settings, such as time format (12-hour or 24-hour), alarm settings, and calibration values. Use the I2C communication protocol to send configuration commands.

4. Timekeeping:

Read the current time and date from BQ4802LYDWR registers through the I2C interface. Display the time on an LCD screen or serial monitor connected to the microcontroller to verify proper timekeeping functionality.

5. Alarm Functionality:

Set an alarm using BQ4802LYDWR by configuring the alarm registers with the desired alarm time. Monitor the alarm output pin of BQ4802LYDWR to trigger external events or notifications based on the alarm condition.

Considerations:

When working with BQ4802LYDWR, consider the following aspects:

- Temperature Compensation: Take advantage of the integrated TCXO to maintain accurate timekeeping performance over a wide temperature range.

- Backup Battery: Ensure a backup power source, such as a coin cell battery, is connected to BQ4802LYDWR to retain timekeeping data during main power loss.

- I2C Communication: Handle I2C communication errors gracefully in the firmware to maintain reliable communication with BQ4802LYDWR.

- Power Consumption: Optimize power management strategies to minimize power consumption when BQ4802LYDWR is in low-power mode, extending battery life in battery-operated devices.

- Time Accuracy: Regularly calibrate BQ4802LYDWR to ensure accurate timekeeping performance, especially in applications requiring precise timing synchronization.

BQ4802LYDWR information

BQ4802LYDWR Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
MemorySize:
-
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.7V ~ 3.6V
Voltage-SupplyBattery:
2.4V ~ 4V
Current-Timekeeping(Max):
1.5mA (Typ) @ 2.7 V ~ 3.6 V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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3. Are the BQ4802LYDWR price and inventory displayed accurate?

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6. What is the process for return or replacement of BQ4802LYDWR?

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 BQ4802LYDWR we delivered, we will accept the replacement or return of the BQ4802LYDWR 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 BQ4802LYDWR.

(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