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Name: BQ32002DR
Brand: Texas Instruments
SKU: BQ32002DR
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 BQ32002DR

Part No.:: BQ32002DR

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: BQ32002DR.pdf

Description:: IC RTC CLK/CALENDAR I2C 8-SOIC

In Stock:: 2268

Quantity:: Add To Cart

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BQ32002DR Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Leap Year, Square Wave Output, Trickle-Charger
MemorySize:
-
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
I²C, 2-Wire Serial
Voltage-Supply:
3V ~ 3.6V
Voltage-SupplyBattery:
1.4V ~ 3.6V
Current-Timekeeping(Max):
65µA @ 3.3V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

BQ32002DR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ32002DR 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 BQ32002DR 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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BQ32002DR information

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BQ32002DR Typical application Circuitry

BQ32002DR

The BQ32002DR is a Real-Time Clock (RTC) integrated circuit designed by Texas Instruments. It is primarily used for timekeeping functions in various electronic devices. This IC is equipped with features like a built-in crystal oscillator, programmable calibration, and an I2C interface, making it a versatile choice for applications that require precise time tracking.

BQ32002DR: Functional Overview and Application Scenarios

Typical Applications

- Consumer electronics: Found in gadgets such as digital clocks, smart watches, and smart home appliances.

- Industrial and Automotive Systems: Employed in logging systems, GPS devices, and vehicle telematics.

- Telecommunication Systems: Integrated into network hardware for time-stamping and data logging.

Key Specifications

- Precise Timekeeping: Offers accurate time and date information.

- Low Power Consumption: Ideal for gadgets that run on batteries.

- Internal Crystal Oscillator: Provides accurate timekeeping in the absence of an external crystal.

- I2C Interface: For easy integration with microcontrollers.

Circuit Integration: BQ32002DR in a Smartwatch

1. Power Supply and Backup

- VCC (Pin 1): Connect to a 3V main power supply.

- VBAT (Pin 2): Connect to a coin cell battery for backup during power outages.

2. Clock Signal and Grounding

- XOUT (Pin 3): No connection required, as the internal oscillator is used.

- XIN (Pin 4): No connection required, as the internal oscillator is used.

- GND (Pin 5): Connect to the system ground.

3. Data Communication Interface

- SDA (Pin 6): Serial Data Line for I2C communication with the smartwatch's CPU.

- SCL (Pin 7): Serial Clock Line for I2C communication.

4. Interrupt and Frequency Output

- INT/SQW (Pin 8): Can be used as an interrupt output or configured for square wave output.

Design Considerations

- Stable Power Supply: Ensure a stable power supply for accurate timekeeping, with a reliable backup battery system.

- I2C Communication Protocol: Implement robust I2C communication for interfacing with the smartwatch's processing unit.

- Noise Immunity: Build the circuit with noise immunity in mind, paying particular attention to the I2C communication lines.

- Battery Backup Management: Ensure seamless switching between the main power supply and the backup battery.

- PCB Layout Considerations: Minimize the trace lengths and interference for the I2C lines.

- Integration with Smartwatch Functions: Ensure the RTC is well integrated with other functions of the smartwatch, such as alarms and timers.

- Component Selection: Choose components that are compatible with the operating voltage and temperature range of the smartwatch.

- Power Efficiency: To extend battery life, optimize the circuit for low power usage.

Incorporating the BQ32002DR into a smartwatch design requires careful attention to these factors to ensure accurate timekeeping and seamless integration with the device's other functions. For comprehensive specifications, including pin layout and electrical parameters, refer to the BQ32002DR's datasheet and technical documentation.

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6. What is the process for return or replacement of BQ32002DR?

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 BQ32002DR we delivered, we will accept the replacement or return of the BQ32002DR 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 BQ32002DR.

(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