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Name: BQ4845YS-A4N
Brand: Texas Instruments
SKU: BQ4845YS-A4N
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 BQ4845YS-A4N

Part No.:: BQ4845YS-A4N

Manufacturer:: Texas Instruments

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

Datasheet:: BQ4845YS-A4N.pdf

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

In Stock:: 10509

Quantity:: Add To Cart

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BQ4845YS-A4N Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Tube,Tube
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:
4.5V ~ 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

BQ4845YS-A4N this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ4845YS-A4N 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 BQ4845YS-A4N 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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BQ4845YS-A4N information

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Basic introduction and simple engineering application of BQ4845YS-A4N

BQ4845YS-A4N is a real-time clock (RTC) module commonly used in electronic projects for timekeeping and timestamping purposes. It offers accurate timekeeping capabilities and can operate in a wide range of temperature conditions.

Application Scenario:

In a digital alarm clock project, BQ4845YS-A4N can be utilized to maintain accurate timekeeping functionality and trigger alarm events at specific times.

Circuit Design:

To create a digital alarm clock using BQ4845YS-A4N, follow these steps:

1. RTC Module Connection:

Connect the BQ4845YS-A4N module to your microcontroller board. Ensure proper wiring and configuration to enable communication between the microcontroller and the RTC module.

2. Display Interface:

Integrate a display module, such as an LCD or LED display, to show the current time and alarm settings. Utilize appropriate communication protocols, such as I2C or SPI, to interface the display module with the microcontroller.

3. User Input:

Provide user input functionality, such as buttons or a keypad, to set the alarm time and enable/disable alarm features. Configure GPIO pins of the microcontroller to detect user input and trigger corresponding actions.

4. Alarm Triggering:

Implement firmware logic to compare the current time from BQ4845YS-A4N with the set alarm time. When the alarm time matches the current time, trigger an alarm event, such as activating a buzzer or flashing LEDs.

5. Power Management:

Ensure proper power supply to both the microcontroller and BQ4845YS-A4N module. Implement power-saving features, such as sleep modes, to minimize power consumption and prolong battery life in portable applications.

Experiment Steps:

To understand the functionality of BQ4845YS-A4N and its integration in a digital alarm clock project, follow these experimental steps:

Step 1: Hardware Setup

Connect the BQ4845YS-A4N module to your microcontroller development board according to the datasheet specifications. Ensure proper power and signal connections.

Step 2: Software Configuration

Write firmware code to initialize the BQ4845YS-A4N module and establish communication with the microcontroller. Implement functions to read the current time from the RTC module and display it on the connected display module.

Step 3: Alarm Setting

Implement user interface functions to allow setting the alarm time using the input buttons or keypad. Store the set alarm time in the microcontroller's memory.

Step 4: Alarm Triggering

Write firmware logic to continuously compare the current time from BQ4845YS-A4N with the set alarm time. When a match is found, trigger the alarm event, such as activating a buzzer or flashing LEDs.

Step 5: Testing and Calibration

Test the digital alarm clock system under various conditions to ensure proper functionality and accuracy. Calibrate the RTC module if necessary to maintain precise timekeeping.

Considerations:

When designing the digital alarm clock project, consider the following factors:

- Accuracy: Ensure that the BQ4845YS-A4N module provides accurate timekeeping to prevent any timing discrepancies in the alarm triggering process.

- User Experience: Design an intuitive user interface for setting the alarm time and interacting with the digital alarm clock.

- Power Consumption: Optimize the firmware code and hardware design to minimize power consumption and extend battery life, especially in battery-operated applications.

- Reliability: Test the digital alarm clock system thoroughly to verify its reliability and robustness in real-world usage scenarios.

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3. Are the BQ4845YS-A4N price and inventory displayed accurate?

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6. What is the process for return or replacement of BQ4845YS-A4N?

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 BQ4845YS-A4N we delivered, we will accept the replacement or return of the BQ4845YS-A4N 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 BQ4845YS-A4N.

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

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(2)Obtain Requesting Return Authorizations