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Name: BQ4845S-A4NTR
Brand: Texas Instruments
SKU: BQ4845S-A4NTR
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-A4NTR

Part No.:: BQ4845S-A4NTR

Manufacturer:: Texas Instruments

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

Datasheet:: BQ4845S-A4NTR.pdf

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

In Stock:: 53179

Quantity:: Add To Cart

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BQ4845S-A4NTR Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Bulk
Series:
-
ProductStatus:
Obsolete
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:
-40°C ~ 85°C
MountingType:
Surface Mount

BQ4845S-A4NTR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ4845S-A4NTR 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-A4NTR 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-A4NTR information

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Basic introduction and simple engineering application of BQ4845S-A4NTR

BQ4845S-A4NTR is a real-time clock (RTC) module manufactured by Texas Instruments, providing accurate timekeeping functionality for a variety of applications. It is commonly used in electronic projects that require precise timing and scheduling capabilities.

Basic Introduction:

The BQ4845S-A4NTR RTC module integrates a complete real-time clock/calendar (RTC) with alarm functionality, making it ideal for time-sensitive applications. It operates over a wide voltage range and features low power consumption, making it suitable for battery-powered devices.

Application Scenario:

In a simple project, BQ4845S-A4NTR can be utilized to build a digital clock with alarm functionality. Let's explore how to implement this project:

1. Hardware Setup:

Connect the BQ4845S-A4NTR RTC module to a microcontroller or development board, such as Arduino or Raspberry Pi, using the I2C or SPI interface. Ensure the necessary pull-up resistors are connected to the communication lines.

2. Initialization:

Initialize the RTC module by configuring the date, time, and alarm settings. Use the appropriate library or driver provided by the microcontroller platform to communicate with the RTC module and set the initial parameters.

3. Display Interface:

Connect a display device, such as an LCD or LED matrix, to the microcontroller to show the current time and alarm settings. Utilize the GPIO pins of the microcontroller to interface with the display module and update the time information.

4. Alarm Functionality:

Implement alarm functionality using the BQ4845S-A4NTR RTC module. Set the desired alarm time and configure the alarm interrupt on the microcontroller to trigger an action, such as activating a buzzer or flashing LEDs, when the alarm time is reached.

5. User Interaction:

Provide user interaction options, such as buttons or switches, to set and adjust the time and alarm settings. Use the GPIO pins of the microcontroller to detect user input and update the RTC parameters accordingly.

6. Power Management:

Implement power management features to ensure reliable operation of the BQ4845S-A4NTR RTC module, such as backup battery support or low-power modes. Utilize voltage regulators and decoupling capacitors to maintain stable power supply to the RTC module and connected peripherals.

Considerations:

When designing the project, consider the following aspects:

- Communication Protocol: Choose the appropriate communication protocol (I2C or SPI) based on the microcontroller platform and interface compatibility.

- Display Compatibility: Ensure that the chosen display device is compatible with the microcontroller and can effectively convey time and alarm information to the user.

- Alarm Accuracy: Test the accuracy of the alarm function under various conditions to ensure reliable performance in triggering alarm events.

- User Experience: Design the user interface to be intuitive and easy to use, allowing users to set and adjust time and alarm settings effortlessly.

- System Integration: Integrate the RTC module seamlessly into the overall system architecture, considering factors such as data logging, communication with other devices, and system synchronization.

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6. What is the process for return or replacement of BQ4845S-A4NTR?

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(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-A4NTR.

(3)The PartNo is unused and only in the original unpacked packaging.

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