What is the Additional Feature ?

Name: BQ4845S-A4TR
Brand: Texas Instruments
SKU: BQ4845S-A4TR
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 BQ4845S-A4TR

Part No.:: BQ4845S-A4TR

Manufacturer:: Texas Instruments

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

Datasheet:: BQ4845S-A4TR.pdf

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

In Stock:: 14470

Quantity:: Add To Cart

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BQ4845S-A4TR Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Bulk
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:
4.75V ~ 5.5V
Voltage-SupplyBattery:
2.3V ~ 4V
Current-Timekeeping(Max):
1.5mA (Typ) @ 4.5 V ~ 5.5 V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

BQ4845S-A4TR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ4845S-A4TR 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 BQ4845S-A4TR 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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BQ4845S-A4TR information

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Basic introduction and simple engineering application of BQ4845S-A4TR

BQ4845S-A4TR is a real-time clock (RTC) chip manufactured by Texas Instruments, commonly utilized in electronic systems for timekeeping and timestamping functionalities. It provides accurate timekeeping capabilities and is suitable for a wide range of applications, from consumer electronics to industrial automation.

Application Scenario:

In a digital alarm clock project, BQ4845S-A4TR can be employed to keep track of time and trigger alarm events at specified times, enhancing user experience and functionality.

Circuit Design:

To design a digital alarm clock using BQ4845S-A4TR, follow these steps:

1. RTC Connection:

Connect BQ4845S-A4TR to the microcontroller or system-on-chip (SoC) using the appropriate communication interface, such as I2C or SPI. Ensure proper power supply and decoupling capacitors for stable operation.

2. Alarm Configuration:

Configure the alarm registers of BQ4845S-A4TR to set the desired alarm time and date. Utilize the alarm output pin to trigger external interrupt events or drive alarm indicators, such as LEDs or buzzers.

3. User Interface:

Integrate user interface components, such as buttons and displays, to interact with the digital alarm clock. Use GPIO pins of the microcontroller to read user input and update the alarm settings or display the current time.

4. Power Management:

Implement power management features to ensure low power consumption and prolonged battery life. Utilize sleep modes and power gating techniques to minimize power consumption during idle periods.

5. Alarm Sound Generation:

Generate alarm sounds using a buzzer or speaker connected to the microcontroller. When the alarm trigger event occurs, drive the buzzer or speaker output pin to produce audible alerts for the user.

Considerations:

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

- Time Accuracy: Ensure that BQ4845S-A4TR provides accurate timekeeping to prevent timing errors and ensure reliable alarm triggering.

- User Experience: Design an intuitive user interface with clear indications of alarm settings and current time display for user convenience.

- Power Efficiency: Optimize power management strategies to minimize energy consumption and extend battery life, especially for portable applications.

- Alarm Volume Control: Implement volume control features to adjust the alarm sound intensity based on user preferences, enhancing usability in different environments.

- Backup Power: Include provisions for backup power sources, such as coin cell batteries, to retain timekeeping functionality in case of main power loss or system shutdown.

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3. Are the BQ4845S-A4TR price and inventory displayed accurate?

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6. What is the process for return or replacement of BQ4845S-A4TR?

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 BQ4845S-A4TR we delivered, we will accept the replacement or return of the BQ4845S-A4TR 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 BQ4845S-A4TR.

(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