Texas Instruments
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BQ2204ASNTR
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BQ2204ASNTR

Product Overview

Category

BQ2204ASNTR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a real-time clock (RTC) and calendar device.

Characteristics

  • Low power consumption
  • High accuracy
  • Small form factor
  • Easy integration with other systems

Package

BQ2204ASNTR is available in a small outline package (SOP) format.

Essence

The essence of this product lies in its ability to accurately keep track of time and date, making it suitable for various applications that require precise timing.

Packaging/Quantity

BQ2204ASNTR is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

  • Supply Voltage: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Clock Accuracy: ±2 minutes per month at 25°C
  • Timekeeping Current: 500nA (typical)
  • Battery Backup Voltage: 1.3V to 5.5V

Detailed Pin Configuration

The BQ2204ASNTR has the following pin configuration:

  1. VCC - Power supply voltage input
  2. GND - Ground reference
  3. X1 - Crystal oscillator input
  4. X2 - Crystal oscillator output
  5. SQW/OUT - Square wave output or interrupt output
  6. SDA - Serial data input/output
  7. SCL - Serial clock input

Functional Features

  • Real-time clock with calendar functionality
  • Automatic leap year compensation
  • Alarm function with programmable interrupt output
  • Battery backup for timekeeping during power loss
  • I2C interface for easy communication with microcontrollers

Advantages and Disadvantages

Advantages

  • High accuracy timekeeping
  • Low power consumption
  • Compact size
  • Easy integration with existing systems

Disadvantages

  • Limited functionality compared to more advanced RTC devices
  • Requires an external crystal oscillator for operation

Working Principles

BQ2204ASNTR utilizes a quartz crystal oscillator to generate precise clock signals. It incorporates a counter and registers to keep track of time and date. The device can be powered by a battery backup during power loss, ensuring uninterrupted timekeeping.

Detailed Application Field Plans

BQ2204ASNTR finds applications in various fields, including:

  1. Consumer electronics: Used in digital watches, alarm clocks, and home appliances.
  2. Automotive: Integrated into car dashboard displays and infotainment systems.
  3. Industrial automation: Employed in timing and scheduling systems for manufacturing processes.
  4. Medical devices: Utilized in medical equipment that requires accurate timekeeping.

Detailed and Complete Alternative Models

  1. DS1307 - Real-time clock module with I2C interface.
  2. PCF8563 - Low-power real-time clock/calendar IC.
  3. MCP7940N - Battery-backed real-time clock/calendar with SRAM.

These alternative models offer similar functionality and can be considered as alternatives to BQ2204ASNTR.

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10 domande e risposte comuni relative all'applicazione di BQ2204ASNTR nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of BQ2204ASNTR in technical solutions:

  1. Question: What is BQ2204ASNTR?
    - Answer: BQ2204ASNTR is a specific model of a real-time clock (RTC) integrated circuit (IC) manufactured by Texas Instruments.

  2. Question: What is the purpose of BQ2204ASNTR in technical solutions?
    - Answer: The BQ2204ASNTR is used as a timing device to provide accurate timekeeping functionality in various electronic systems.

  3. Question: What are the key features of BQ2204ASNTR?
    - Answer: Some key features of BQ2204ASNTR include low power consumption, battery backup support, programmable alarm functions, and I2C interface for communication.

  4. Question: How does BQ2204ASNTR maintain accurate timekeeping?
    - Answer: BQ2204ASNTR uses an internal oscillator and a built-in crystal to maintain accurate timekeeping, even in the absence of external power.

  5. Question: Can BQ2204ASNTR be used in battery-powered devices?
    - Answer: Yes, BQ2204ASNTR is designed to operate efficiently in battery-powered devices, thanks to its low power consumption capabilities.

  6. Question: Is BQ2204ASNTR compatible with microcontrollers or other digital systems?
    - Answer: Yes, BQ2204ASNTR can be easily interfaced with microcontrollers and other digital systems using the I2C communication protocol.

  7. Question: Can BQ2204ASNTR generate alarms or interrupts?
    - Answer: Yes, BQ2204ASNTR has programmable alarm functions that can generate interrupts or trigger external events based on specific time conditions.

  8. Question: What is the typical accuracy of BQ2204ASNTR?
    - Answer: The typical accuracy of BQ2204ASNTR is within a few seconds per month, making it suitable for most timekeeping applications.

  9. Question: Does BQ2204ASNTR support battery backup for timekeeping during power outages?
    - Answer: Yes, BQ2204ASNTR has a built-in battery backup feature that allows it to continue timekeeping even when the main power source is disconnected.

  10. Question: Are there any application-specific considerations when using BQ2204ASNTR?
    - Answer: It is important to consider factors such as power supply voltage, crystal selection, and I2C bus configuration while integrating BQ2204ASNTR into a specific technical solution.

Please note that these questions and answers are general in nature and may vary depending on the specific requirements and implementation of BQ2204ASNTR in different technical solutions.