What is the Additional Feature ?

Name: BQ4802YDWG4
Brand: Benchmarq
SKU: BQ4802YDWG4
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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Benchmarq BQ4802YDWG4

Part No.:: BQ4802YDWG4

Manufacturer:: Benchmarq

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

Datasheet:: BQ4802YDWG4.pdf

Description:: REAL TIME CLOCK, NON-VOLATILE, 1

In Stock:: 3340

Quantity:: Add To Cart

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BQ4802YDWG4 Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Bulk
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
MemorySize:
16B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.4V ~ 4V
Current-Timekeeping(Max):
1.5mA @ 4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

BQ4802YDWG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ4802YDWG4 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 BQ4802YDWG4 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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BQ4802YDWG4 information

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Basic introduction and simple engineering application of BQ4802YDWG4

BQ4802YDWG4 is a real-time clock (RTC) chip commonly used in electronic projects for timekeeping and timestamping applications. It offers precise timekeeping capabilities and is widely employed in various devices, including microcontroller-based systems, data loggers, and IoT devices.

Application Scenario:

In a digital alarm clock project, BQ4802YDWG4 can be utilized to keep track of time and trigger alarm events at specific times.

Circuit Design:

To create a digital alarm clock using BQ4802YDWG4, follow these steps:

1. Clock Connection:

Connect the BQ4802YDWG4 RTC chip to the microcontroller's I2C bus. Ensure proper pull-up resistors are connected to the SDA and SCL lines for reliable communication.

2. Alarm Setting:

Program the microcontroller to read the current time from BQ4802YDWG4 and compare it with the alarm time set by the user. When the current time matches the alarm time, trigger the alarm event, such as activating a buzzer or turning on an LED.

3. User Interface:

Integrate user interface elements, such as buttons or a touchscreen display, to allow users to set the alarm time and control other functionalities of the alarm clock.

4. Power Management:

Ensure proper power supply and management for both the microcontroller and the BQ4802YDWG4 RTC chip. Utilize voltage regulators and decoupling capacitors to provide stable power and minimize noise.

5. Alarm Output:

Connect output devices, such as a buzzer or an LED, to the microcontroller's GPIO pins to indicate when the alarm is triggered. Configure these pins as digital outputs to drive the alarm peripherals.

Considerations:

When designing the digital alarm clock circuit, consider the following:

- Backup Power: Implement a backup power source, such as a coin cell battery, to maintain timekeeping functionality in case of a main power outage.

- Alarm Accuracy: Ensure that the BQ4802YDWG4 RTC chip provides accurate timekeeping to trigger alarms reliably.

- User Interface Design: Design an intuitive user interface for setting alarm times and interacting with the alarm clock functionalities.

- Low Power Operation: Optimize the firmware to minimize power consumption, especially when the alarm clock is in standby mode, to prolong battery life.

- Robustness: Test the alarm clock system thoroughly to ensure reliable operation under various conditions, including different alarm settings and power scenarios.

BQ4802YDWG4 FAQ

1. How to order BQ4802YDWG4 on icwhale.com?

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3. Are the BQ4802YDWG4 price and inventory displayed accurate?

The price and inventory of BQ4802YDWG4 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

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6. What is the process for return or replacement of BQ4802YDWG4?

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 BQ4802YDWG4 we delivered, we will accept the replacement or return of the BQ4802YDWG4 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 BQ4802YDWG4.

(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