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BQ4845YP-A4E3
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BQ4845YP-A4E3

Product Overview

Category

BQ4845YP-A4E3 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for real-time clock (RTC) applications.

Characteristics

  • Low power consumption
  • High accuracy
  • Small form factor
  • Wide operating temperature range

Package

The BQ4845YP-A4E3 comes in a small outline package (SOP) with 20 pins.

Essence

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

Packaging/Quantity

The BQ4845YP-A4E3 is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

  • Supply voltage: 2.7V to 5.5V
  • Operating temperature range: -40°C to +85°C
  • Timekeeping accuracy: ±1 minute per month
  • Clock/calendar with leap year compensation
  • Battery backup for continuous operation during power loss

Detailed Pin Configuration

  1. VCC
  2. GND
  3. X1
  4. X2
  5. SQW/INT
  6. SDA
  7. SCL
  8. NC
  9. NC
  10. VBAT
  11. VBAT
  12. VBAT
  13. VBAT
  14. VBAT
  15. VBAT
  16. VBAT
  17. VBAT
  18. VBAT
  19. VBAT
  20. VBAT

Functional Features

  • Real-time clock functionality
  • Calendar with leap year compensation
  • Alarm and interrupt capabilities
  • Battery backup for uninterrupted operation
  • I2C interface for easy integration

Advantages and Disadvantages

Advantages

  • High accuracy timekeeping
  • Low power consumption
  • Small form factor for space-constrained applications
  • Wide operating temperature range allows for use in various environments

Disadvantages

  • Limited quantity per reel (2500 units)
  • Requires an external battery for backup operation

Working Principles

The BQ4845YP-A4E3 utilizes a quartz crystal oscillator to generate precise clock signals. It incorporates a calendar with leap year compensation and provides alarm and interrupt functionalities. The device can operate from a wide supply voltage range and includes a battery backup feature to ensure continuous operation during power loss.

Detailed Application Field Plans

The BQ4845YP-A4E3 is suitable for a wide range of applications, including but not limited to: - Consumer electronics - Automotive systems - Industrial automation - Medical devices - IoT devices

Detailed and Complete Alternative Models

  1. BQ4845YP-A4E2
  2. BQ4845YP-A4E4
  3. BQ4845YP-A4E5
  4. BQ4845YP-A4E6
  5. BQ4845YP-A4E7

These alternative models offer similar functionality and characteristics to the BQ4845YP-A4E3, providing flexibility in choosing the most suitable option for specific requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af BQ4845YP-A4E3 i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of BQ4845YP-A4E3 in technical solutions:

  1. Question: What is the BQ4845YP-A4E3?
    Answer: The BQ4845YP-A4E3 is a real-time clock (RTC) module used for timekeeping and calendar functions in electronic devices.

  2. Question: What is the operating voltage range of the BQ4845YP-A4E3?
    Answer: The BQ4845YP-A4E3 operates within a voltage range of 2.7V to 5.5V.

  3. Question: How accurate is the timekeeping capability of the BQ4845YP-A4E3?
    Answer: The BQ4845YP-A4E3 has an accuracy of ±2 minutes per month at 25°C.

  4. Question: Can the BQ4845YP-A4E3 be used in battery-powered devices?
    Answer: Yes, the BQ4845YP-A4E3 is designed to be used in low-power applications and can be used in battery-powered devices.

  5. Question: Does the BQ4845YP-A4E3 have an integrated crystal oscillator?
    Answer: No, the BQ4845YP-A4E3 requires an external 32.768 kHz crystal oscillator for operation.

  6. Question: What communication interface does the BQ4845YP-A4E3 support?
    Answer: The BQ4845YP-A4E3 supports I2C (Inter-Integrated Circuit) communication interface.

  7. Question: Can the BQ4845YP-A4E3 be used in both 12-hour and 24-hour time formats?
    Answer: Yes, the BQ4845YP-A4E3 supports both 12-hour and 24-hour time formats.

  8. Question: Does the BQ4845YP-A4E3 have a backup power supply for maintaining timekeeping during power loss?
    Answer: Yes, the BQ4845YP-A4E3 has an integrated backup power supply that can be connected to a battery or supercapacitor.

  9. Question: Can the BQ4845YP-A4E3 generate alarms or interrupts based on specific time events?
    Answer: Yes, the BQ4845YP-A4E3 has alarm features that can trigger interrupts or set output pins based on specific time events.

  10. Question: Is the BQ4845YP-A4E3 RoHS compliant?
    Answer: Yes, the BQ4845YP-A4E3 is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental regulations.

Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ4845YP-A4E3 in different technical solutions.