RTC-4543SA:B3 PURE

Product Overview

Category: Electronic Component
Use: Real-time Clock (RTC)
Characteristics: High precision, low power consumption
Package: Surface Mount Device (SMD)
Essence: Accurate timekeeping and calendar functionality
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)
• Clock Frequency: 32.768kHz
• Battery Backup: Integrated battery switchover circuit

Detailed Pin Configuration

The RTC-4543SA:B3 PURE has the following 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/INT: Square Wave Output / Interrupt output
6. BAT: Battery backup input

Functional Features

• Real-time clock with calendar functionality
• Automatic leap year compensation
• Alarm function with programmable interrupt
• Square wave output with selectable frequencies
• Battery backup for maintaining time during power loss
• Low power consumption in standby mode

Advantages and Disadvantages

Advantages: - High accuracy timekeeping - Wide operating voltage range - Small form factor - Easy integration into various electronic devices - Low power consumption

Disadvantages: - Limited temperature range for operation - External battery required for backup functionality

Working Principles

The RTC-4543SA:B3 PURE utilizes a highly accurate quartz crystal oscillator to generate a stable clock frequency of 32.768kHz. This clock signal is used to keep track of time and date information. The integrated circuit communicates with the host microcontroller through the I2C interface, allowing for easy configuration and data exchange.

During normal operation, the RTC draws power from the main supply voltage (VCC). In case of a power loss, the battery backup circuit ensures that the clock continues to run using an external battery connected to the BAT pin.

Detailed Application Field Plans

The RTC-4543SA:B3 PURE finds applications in various electronic devices that require accurate timekeeping and calendar functionality. Some potential application fields include:

1. Smartwatches and wearable devices
2. Internet of Things (IoT) devices
3. Automotive systems
4. Industrial automation
5. Medical equipment
6. Consumer electronics

Detailed and Complete Alternative Models

1. RTC-4543SB:B3 PURE: Similar specifications, but with extended temperature range (-40°C to +105°C)
2. RTC-4543SC:B3 PURE: Enhanced accuracy (±1ppm at 25°C), suitable for critical timing applications
3. RTC-4543SD:B3 PURE: Lower power consumption, ideal for battery-powered devices

These alternative models offer similar functionality with slight variations to cater to specific requirements.

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