RX-8581NB:B0

Product Overview

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

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Accuracy: ±3 minutes per year at 25°C
• Oscillator Frequency: 32.768 kHz
• Backup Battery Voltage: 1.8V to 5.5V
• Current Consumption: 0.35 μA (typical)

Detailed Pin Configuration

The RX-8581NB:B0 has the following pin configuration:

| Pin Name | Function | |----------|----------| | VCC | Power supply voltage input | | GND | Ground | | SDA | Serial Data Line | | SCL | Serial Clock Line | | SQW/INT | Square Wave Output / Interrupt Output | | VBAT | Backup Battery Input |

Functional Features

• Real-time clock with calendar functionality
• Automatic leap year compensation
• Alarm function with programmable interrupt output
• Low power consumption in backup mode
• I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - High accuracy timekeeping - Low power consumption - Compact surface mount package - Easy integration with microcontrollers

Disadvantages: - Limited temperature range (-40°C to +85°C) - Backup battery required for continuous operation

Working Principles

The RX-8581NB:B0 utilizes a highly accurate 32.768 kHz oscillator to keep track of time. It uses an internal counter and registers to maintain the current date and time. The device can be powered by a main supply voltage or a backup battery, ensuring uninterrupted operation even during power outages.

Detailed Application Field Plans

The RX-8581NB:B0 is widely used in various applications that require precise timekeeping and real-time clock functionality. Some common application fields include:

1. Consumer Electronics: Used in digital watches, clocks, and timers.
2. Industrial Automation: Integrated into programmable logic controllers (PLCs) for accurate time synchronization.
3. Automotive: Incorporated into car dashboard clocks and event recorders.
4. Medical Devices: Utilized in medical equipment for time-sensitive operations and data logging.
5. IoT Devices: Integrated into smart home systems, energy management systems, and data loggers.

Detailed and Complete Alternative Models

1. RX-8579NB:A0: Similar specifications and features, but with a different pin configuration.
2. DS3231: Real-time clock module with higher accuracy and extended temperature range.
3. PCF8563: Low-power real-time clock with I2C interface and alarm functionality.

Please note that the above alternative models are just a few examples, and there are several other options available in the market.

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