BQ32002DR

Product Overview

Category

BQ32002DR belongs to the category of real-time clock (RTC) integrated circuits.

Use

This product is primarily used for timekeeping and calendar functions in various electronic devices.

Characteristics

• Accurate timekeeping with low power consumption
• Integrated oscillator compensation circuitry
• Non-volatile memory for data storage during power loss
• I2C interface for easy communication with microcontrollers
• Wide operating voltage range

Package

BQ32002DR is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of BQ32002DR lies in its ability to provide accurate timekeeping functionality in electronic devices.

Packaging/Quantity

This product is typically sold in reels containing a specified quantity of units. Please refer to the manufacturer's packaging specifications for more details.

Specifications

• Operating Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±5 ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Over 10 years
• I2C Bus Frequency: Up to 400 kHz

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground connection
3. SDA: Serial data line for I2C communication
4. SCL: Serial clock line for I2C communication
5. SQW/OUT: Square wave output or interrupt output
6. RST: Reset input
7. X1: Crystal oscillator input
8. X2: Crystal oscillator output

Functional Features

• Real-time clock with seconds, minutes, hours, day, date, month, and year information
• Automatic leap year compensation
• Alarm functionality with programmable interrupt output
• Battery backup for continuous timekeeping during power loss
• Oscillator compensation circuitry for accurate timekeeping

Advantages and Disadvantages

Advantages

• Low power consumption extends battery life
• Wide operating voltage range allows compatibility with various systems
• Integrated oscillator compensation ensures accurate timekeeping
• Non-volatile memory retains data during power loss

Disadvantages

• Limited number of pins may restrict additional functionality
• Requires an external crystal oscillator for operation

Working Principles

BQ32002DR utilizes an internal oscillator and compensation circuitry to maintain accurate timekeeping. It communicates with a microcontroller through the I2C interface, allowing easy integration into electronic systems. The non-volatile memory ensures that time and date information is retained even during power loss.

Detailed Application Field Plans

BQ32002DR finds applications in a wide range of electronic devices requiring precise timekeeping and calendar functions. Some potential application fields include:

1. Smartwatches and wearable devices
2. Industrial automation systems
3. Automotive electronics
4. Medical equipment
5. Home automation systems

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock (RTC) IC with integrated temperature compensation
2. PCF8563 - Low-power real-time clock/calendar IC with I2C interface
3. MCP7940N - Battery-backed real-time clock/calendar with SRAM and I2C interface
4. RV-8803-C7 - Ultra-low power real-time clock module with I2C interface

These alternative models offer similar functionality to BQ32002DR and can be considered based on specific requirements and system compatibility.

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