ISL12058IRUZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Real-Time Clock (RTC) with Battery Backup

Characteristics: - Low power consumption - High accuracy timekeeping - Battery backup for continuous operation during power loss - I2C interface for easy integration with microcontrollers - Small package size for space-constrained applications

Package: 8-pin MicroDFN

Essence: The ISL12058IRUZ-T is a real-time clock IC designed to provide accurate timekeeping in various electronic devices. It offers low power consumption and battery backup, ensuring uninterrupted operation even during power outages.

Packaging/Quantity: The ISL12058IRUZ-T is available in tape and reel packaging, with 3,000 units per reel.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±5ppm (parts per million)
• Operating Temperature Range: -40°C to +85°C
• I2C Bus Frequency: Up to 400kHz
• Battery Backup Voltage: 1.8V to 5.5V

Detailed Pin Configuration

The ISL12058IRUZ-T has the following pin configuration:

1. VBAT - Battery Backup Input
2. GND - Ground
3. SDA - I2C Serial Data Line
4. SCL - I2C Serial Clock Line
5. VCC - Power Supply Input
6. X1 - Crystal Connection 1
7. X2 - Crystal Connection 2
8. NC - No Connect

Functional Features

• Real-time clock with calendar functionality
• Alarm and timer functions
• Programmable square wave output
• Automatic leap year compensation
• Power-fail detection and switch circuitry
• Battery-backed SRAM for data storage

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life - High accuracy timekeeping ensures precise timing applications - Small package size allows for space-saving designs - I2C interface simplifies integration with microcontrollers

Disadvantages: - Limited quantity per reel (3,000 units) - Requires an external crystal for clock accuracy

Working Principles

The ISL12058IRUZ-T utilizes an internal oscillator circuit along with an external crystal to generate accurate timekeeping signals. It operates in conjunction with a microcontroller or other host device through the I2C interface. The IC can be powered by a main power supply or a backup battery, ensuring continuous operation during power loss.

Detailed Application Field Plans

The ISL12058IRUZ-T is commonly used in various electronic devices that require accurate timekeeping, such as:

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

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with I2C Interface
2. PCF8563 - CMOS Real-Time Clock/Calendar IC
3. MCP7940N - I2C Real-Time Clock/Calendar with SRAM

These alternative models offer similar functionality and can be considered as alternatives to the ISL12058IRUZ-T based on specific application requirements.

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