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Name: BQ3287EMT
Brand: Texas Instruments
SKU: BQ3287EMT
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 BQ3287EMT

Part No.:: BQ3287EMT

Manufacturer:: Texas Instruments

Package:: 24-DIP Module (0.61, 15.49mm)

Datasheet:: BQ3287EMT.pdf

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

In Stock:: 2283

Quantity:: Add To Cart

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BQ3287EMT Specifications

Package/Case:
24-DIP Module (0.61, 15.49mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
MemorySize:
242B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
-
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

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BQ3287EMT information

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Basic introduction and simple engineering application of BQ3287EMT

BQ3287EMT is a real-time clock (RTC) module commonly used in electronic projects and embedded systems to provide accurate timekeeping functionality. It integrates a quartz crystal oscillator and supports various clock/calendar functions.

Application Scenario:

In a weather station project, BQ3287EMT can be utilized to timestamp sensor data readings, allowing users to track weather conditions over time accurately.

Circuit Design:

To implement a weather station using BQ3287EMT, follow these steps:

1. RTC Module Integration:

Connect BQ3287EMT to the microcontroller, such as an Arduino or Raspberry Pi, using the I2C interface. Ensure proper pull-up resistors are connected to the SDA and SCL lines for stable communication.

2. Sensor Integration:

Interface various sensors, such as temperature, humidity, and barometric pressure sensors, to the microcontroller. Utilize analog or digital interfaces compatible with the selected microcontroller platform.

3. Data Logging:

Utilize the RTC functionality of BQ3287EMT to timestamp sensor data readings. Store the data in non-volatile memory, such as an SD card or EEPROM, for long-term logging and analysis.

4. Display and User Interface:

Integrate a display, such as an LCD or OLED screen, to visualize real-time weather data and RTC information. Implement user interface elements to configure settings and view historical data.

5. Power Management:

Ensure proper power supply and management for both the microcontroller and BQ3287EMT. Utilize voltage regulators and decoupling capacitors to maintain stable operation and minimize power consumption.

Experiment:

To understand the functionality of BQ3287EMT, conduct the following experiment:

1. Hardware Setup:

Connect BQ3287EMT to an Arduino Uno using the I2C interface. Connect an OLED display to visualize the RTC information.

2. Time Setting:

Write a simple Arduino sketch to set the current time in BQ3287EMT. Display the time on the OLED screen to verify the setting.

3. Timekeeping:

Let the system run for a few hours. Periodically read the time from BQ3287EMT and display it on the OLED screen to observe its accuracy.

4. Power Interruption Test:

Disconnect power to the Arduino and reconnect it after a few minutes. Verify if BQ3287EMT maintains accurate timekeeping despite the power interruption.

5. Data Logging:

Extend the experiment by logging timestamps along with sensor data readings. Store the data in EEPROM or an external memory module for analysis.

Considerations:

When working with BQ3287EMT, consider the following factors:

- Battery Backup: Ensure the RTC module has a reliable battery backup to maintain timekeeping during power outages.

- I2C Communication: Properly configure the I2C communication parameters to avoid bus conflicts and ensure stable communication with the microcontroller.

- Accuracy Calibration: Calibrate the RTC module periodically to maintain accurate timekeeping, especially in environments with temperature variations.

- Data Retention: Check the data retention specifications of BQ3287EMT to ensure stored information remains intact over extended periods.

- Integration Flexibility: Explore additional features of BQ3287EMT, such as alarm functionality and timer capabilities, to enhance project functionality.

BQ3287EMT FAQ

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3. Are the BQ3287EMT price and inventory displayed accurate?

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6. What is the process for return or replacement of BQ3287EMT?

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 BQ3287EMT we delivered, we will accept the replacement or return of the BQ3287EMT 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 BQ3287EMT.

(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