RX-8581JE:B3 I2C-BUS

Product Overview

Category

The RX-8581JE:B3 I2C-BUS belongs to the category of integrated circuits (ICs) used in electronic devices.

Use

This product is primarily used for real-time clock (RTC) applications, providing accurate timekeeping functionality.

Characteristics

• I2C-BUS Interface: The RX-8581JE:B3 utilizes the I2C-BUS communication protocol, allowing for easy integration with other devices.
• Accurate Timekeeping: This IC offers precise timekeeping capabilities, ensuring reliable and consistent time measurements.
• Low Power Consumption: The RX-8581JE:B3 is designed to operate efficiently, minimizing power consumption in electronic devices.
• Compact Package: It comes in a compact package, making it suitable for space-constrained applications.
• Reliable Performance: This product delivers reliable performance, ensuring accurate timekeeping over extended periods.

Package and Quantity

The RX-8581JE:B3 I2C-BUS is available in a small surface-mount package. It is typically sold in reels or trays, with varying quantities depending on the supplier.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Accuracy: ±3 minutes per month at 25°C
• I2C-BUS Interface: Supports standard and fast mode (100 kHz and 400 kHz)
• Backup Power Source: Integrated backup power supply for maintaining timekeeping during power loss

Pin Configuration

The RX-8581JE:B3 I2C-BUS has the following pin configuration:

| Pin Name | Function | |----------|----------| | VCC | Power Supply (1.8V to 5.5V) | | GND | Ground | | SDA | I2C-BUS Serial Data Line | | SCL | I2C-BUS Serial Clock Line | | XOUT | Crystal Oscillator Output | | XIN | Crystal Oscillator Input | | VBAT | Backup Power Supply Input |

Functional Features

• Timekeeping: The RX-8581JE:B3 provides accurate timekeeping functionality, including hours, minutes, seconds, and date.
• Alarm Function: It supports programmable alarms, allowing for scheduled events or reminders.
• Timer Function: This IC includes a timer feature, enabling countdown or elapsed time measurement.
• Power Management: The RX-8581JE:B3 incorporates power management features to optimize energy consumption.

Advantages and Disadvantages

Advantages

• Accurate timekeeping with low time drift
• Compact size suitable for space-constrained applications
• Low power consumption extends battery life
• Easy integration with other devices through the I2C-BUS interface

Disadvantages

• Limited timekeeping accuracy at extreme temperatures
• Lack of advanced features compared to higher-end RTCs
• Reliance on an external crystal oscillator for clock stability

Working Principles

The RX-8581JE:B3 I2C-BUS operates by utilizing an internal clock circuitry that counts time based on the frequency provided by an external crystal oscillator. It communicates with other devices using the I2C-BUS protocol, allowing for data exchange and control. The backup power supply ensures uninterrupted timekeeping during power loss.

Application Field Plans

The RX-8581JE:B3 I2C-BUS is widely used in various electronic devices requiring accurate timekeeping, such as:

1. Consumer Electronics: Smartphones, tablets, digital cameras, and portable media players.
2. Home Appliances: Microwave ovens, washing machines, and refrigerators.
3. Automotive: Car infotainment systems, dashboard clocks, and GPS devices.
4. Industrial Equipment: Programmable logic controllers (PLCs), data loggers, and measurement instruments.

Alternative Models

For those seeking alternative options, the following RTC ICs can be considered:

1. DS3231: This RTC module offers higher timekeeping accuracy and additional features such as temperature compensation.
2. PCF8563: A low-power RTC IC with integrated alarm and timer functions.
3. MCP7940N: Provides enhanced power management features and a wide operating voltage range.

These alternative models offer different specifications and features, catering to specific application requirements.

In conclusion, the RX-8581JE:B3 I2C-BUS is a reliable and compact RTC IC that provides accurate timekeeping functionality for various electronic devices. Its low power consumption and easy integration make it suitable for a wide range of applications. However, users should consider alternative models based on their specific needs and preferences.