ISL12024IRTCZ

Product Overview

Category: Integrated Circuit (IC)

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

Characteristics: - Low-power, high-accuracy RTC - Provides time and calendar information - Supports alarm functions - Operates with a backup battery during power loss - Suitable for various applications requiring accurate timekeeping

Package: Small Outline Integrated Circuit (SOIC)

Essence: The ISL12024IRTCZ is a highly reliable and efficient real-time clock IC that ensures accurate timekeeping in electronic devices.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Timekeeping Current: 1.3μA (typical)
• Alarm Current: 400nA (typical)
• Operating Temperature Range: -40°C to +85°C
• Accuracy: ±5ppm (±0.432 seconds/day)
• I2C Interface: Supports standard and fast mode (up to 400kHz)

Detailed Pin Configuration

The ISL12024IRTCZ has a total of 8 pins:

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. IRQ: Interrupt output pin
6. VBAT: Backup battery input
7. X1: Crystal oscillator input
8. X2: Crystal oscillator output

Functional Features

• Accurate timekeeping: The ISL12024IRTCZ utilizes an integrated crystal oscillator and compensates for temperature variations to maintain precise timekeeping.
• Alarm functions: The IC supports programmable alarms, allowing for various time-based events or notifications.
• Backup battery operation: During power loss, the IC seamlessly switches to a backup battery, ensuring uninterrupted timekeeping.
• I2C interface: The I2C communication protocol enables easy integration with microcontrollers and other devices.

Advantages

• Low power consumption: The IC's low current consumption extends battery life in portable devices.
• High accuracy: With an accuracy of ±5ppm, the ISL12024IRTCZ provides reliable timekeeping.
• Small form factor: The SOIC package allows for compact designs and space-saving integration.

Disadvantages

• Limited temperature range: The operating temperature range of -40°C to +85°C may not be suitable for extreme environments.
• Lack of additional features: Some competing RTC ICs offer additional functionalities like temperature sensors or non-volatile memory.

Working Principles

The ISL12024IRTCZ utilizes an integrated crystal oscillator to generate clock signals. It continuously counts the oscillations to maintain accurate timekeeping. The IC communicates with external devices through the I2C interface, allowing for configuration and retrieval of time and alarm settings.

During normal operation, the IC is powered by the main supply voltage (VCC). In case of a power loss, it automatically switches to the backup battery (VBAT) to ensure uninterrupted timekeeping.

Detailed Application Field Plans

The ISL12024IRTCZ can be used in various applications that require precise timekeeping, such as:

1. Consumer electronics: Smartphones, tablets, digital cameras, and portable media players.
2. Industrial automation: Programmable logic controllers (PLCs), data loggers, and industrial control systems.
3. Medical devices: Patient monitoring systems, infusion pumps, and medical equipment.
4. Automotive: Dashboard clocks, infotainment systems, and vehicle tracking devices.
5. Internet of Things (IoT): Smart home devices, wearables, and connected appliances.

Detailed and Complete Alternative Models

1. DS3231: Real-Time Clock IC with temperature compensation and additional non-volatile memory.
2. PCF8563: Low-power RTC IC with alarm functions and I2C interface.
3. MCP7940N: Highly accurate RTC IC with battery backup and integrated temperature sensor.

These alternative models offer similar functionalities to the ISL12024IRTCZ and can be considered based on specific application requirements.

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