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Name: BQ3285P-SB2E3
Brand: Texas Instruments
SKU: BQ3285P-SB2E3
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 BQ3285P-SB2E3

Part No.:: BQ3285P-SB2E3

Manufacturer:: Texas Instruments

Package:: 24-DIP (0.600, 15.24mm)

Datasheet:: BQ3285P-SB2E3.pdf

Description:: IC RTC CLK/CALENDAR PAR 24-DIP

In Stock:: 3533

Quantity:: Add To Cart

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BQ3285P-SB2E3 Specifications

Package/Case:
24-DIP (0.600, 15.24mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
MemorySize:
114B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.5V ~ 4V
Current-Timekeeping(Max):
-
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

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BQ3285P-SB2E3 information

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Basic introduction and simple engineering application of BQ3285P-SB2E3

BQ3285P-SB2E3 is a real-time clock (RTC) module with integrated temperature compensation and a wide operating voltage range, making it suitable for various timekeeping applications in embedded systems.

Introduction:

The BQ3285P-SB2E3 RTC module from Texas Instruments is a highly accurate timekeeping device designed for low-power applications. It features a built-in temperature-compensated crystal oscillator (TCXO) that ensures precise timekeeping over a wide temperature range. Additionally, its wide operating voltage range from 1.8V to 5.5V makes it compatible with a variety of microcontroller systems.

Application:

In this educational project, we will demonstrate the application of the BQ3285P-SB2E3 RTC module in a simple alarm clock system. This project will involve setting the current time, setting an alarm time, and triggering an alert when the alarm time is reached.

Experimental Setup:

To create the alarm clock system using the BQ3285P-SB2E3 RTC module, follow these steps:

1. Hardware Setup:

Connect the BQ3285P-SB2E3 RTC module to your microcontroller development board according to the datasheet specifications. Ensure proper power and ground connections are made.

2. Software Setup:

Develop firmware for your microcontroller to interface with the BQ3285P-SB2E3 RTC module. Use appropriate communication protocols, such as I2C, to communicate with the RTC module and read/write the current time and alarm settings.

3. Setting Current Time:

Implement functionality in your firmware to set the current time on the BQ3285P-SB2E3 RTC module. Allow the user to input the current time using buttons or a serial interface and update the RTC registers accordingly.

4. Setting Alarm Time:

Enable the user to set the alarm time through the user interface. Implement logic in your firmware to compare the current time read from the RTC module with the alarm time set by the user.

5. Alert Mechanism:

When the current time matches the alarm time set by the user, trigger an alert mechanism. This could involve activating a buzzer, flashing LEDs, or displaying a message on an LCD screen to alert the user of the alarm.

Considerations:

- Power Management: Ensure the BQ3285P-SB2E3 RTC module and microcontroller are powered properly to maintain accurate timekeeping and alarm functionality.

- User Interface: Design a user-friendly interface for setting the current time and alarm time, considering the limitations of the microcontroller and available input/output options.

- Alarm Accuracy: Test the accuracy of the alarm triggering mechanism under various operating conditions to ensure reliable performance.

- Low Power Operation: Optimize your firmware to minimize power consumption, especially when the system is in standby mode to prolong battery life in battery-powered applications.

Conclusion:

The BQ3285P-SB2E3 RTC module is a versatile timekeeping device suitable for a wide range of embedded applications. By implementing a simple alarm clock system, you can explore its features and understand how to integrate it into your projects effectively.

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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.

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