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ISL12028IBAZ
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 ISL12028IBAZ is a highly reliable and efficient real-time clock IC that ensures accurate timekeeping in electronic devices.
Packaging/Quantity: The ISL12028IBAZ is available in SOIC packaging and is typically sold in reels of 2500 units.
Specifications
- Supply Voltage: 2.7V to 5.5V
- Timekeeping Accuracy: ±5ppm (±0.432 seconds per day)
- Operating Temperature Range: -40°C to +85°C
- Battery Backup Voltage: 1.8V to 5.5V
- I2C Bus Interface
Detailed Pin Configuration
The ISL12028IBAZ has a total of 8 pins:
- VCC: Power supply input
- GND: Ground connection
- SDA: Serial Data Line for I2C communication
- SCL: Serial Clock Line for I2C communication
- INT/SQW: Interrupt output or Square Wave output selection pin
- VBAT: Backup battery input
- X1: Crystal oscillator input
- X2: Crystal oscillator output
Functional Features
- Accurate Timekeeping: The ISL12028IBAZ provides precise time and calendar information, ensuring reliable timekeeping in various applications.
- Alarm Functions: It supports multiple programmable alarms, allowing users to set specific events or reminders.
- Battery Backup: During power loss, the IC seamlessly switches to a backup battery, ensuring uninterrupted timekeeping.
- I2C Interface: The I2C bus interface enables easy communication with other devices in the system.
Advantages and Disadvantages
Advantages: - High accuracy - Low power consumption - Compact size - Easy integration with other devices - Reliable performance
Disadvantages: - Limited temperature range (-40°C to +85°C) - Requires an external crystal oscillator for operation
Working Principles
The ISL12028IBAZ utilizes an internal oscillator and a crystal oscillator to generate accurate timekeeping signals. It operates by continuously counting the oscillations of the crystal, converting them into time and calendar information. The IC also incorporates power management circuitry to ensure seamless switching between the main power supply and the backup battery during power loss.
Detailed Application Field Plans
The ISL12028IBAZ is widely used in various electronic devices that require precise timekeeping, such as:
- Consumer Electronics: Smartphones, tablets, digital cameras, and portable media players.
- Industrial Equipment: Programmable logic controllers (PLCs), data loggers, and automation systems.
- Automotive Systems: Infotainment systems, dashboard clocks, and GPS navigation devices.
- Medical Devices: Patient monitoring systems, medical equipment timers, and drug dispensers.
- IoT Devices: Smart home automation systems, wearable devices, and sensor networks.
Detailed and Complete Alternative Models
- DS3231 - Real-Time Clock Module with Temperature Compensation
- PCF8563 - Real-Time Clock and Calendar with Alarm Functions
- MCP7940N - I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
These alternative models offer similar functionalities and can be considered as alternatives to the ISL12028IBAZ based on specific requirements and application needs.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de ISL12028IBAZ em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of ISL12028IBAZ in technical solutions:
Q: What is ISL12028IBAZ? A: ISL12028IBAZ is a real-time clock (RTC) module manufactured by Renesas Electronics. It provides accurate timekeeping and calendar functions for various technical applications.
Q: What are the key features of ISL12028IBAZ? A: The key features of ISL12028IBAZ include low power consumption, I2C interface, battery backup, alarm functionality, programmable square wave output, and automatic leap year compensation.
Q: How can ISL12028IBAZ be used in technical solutions? A: ISL12028IBAZ can be used as a reliable timekeeping component in a wide range of technical solutions such as industrial automation systems, data loggers, medical devices, smart meters, and IoT devices.
Q: Does ISL12028IBAZ require an external battery for operation? A: Yes, ISL12028IBAZ requires an external battery, typically a coin cell battery, for backup power to maintain timekeeping during power outages or when the main power source is disconnected.
Q: Can ISL12028IBAZ be easily integrated into existing designs? A: Yes, ISL12028IBAZ comes in a small surface-mount package and supports the I2C communication protocol, making it easy to integrate into existing designs with minimal footprint and wiring requirements.
Q: How accurate is the timekeeping capability of ISL12028IBAZ? A: ISL12028IBAZ offers high accuracy timekeeping with a typical accuracy of ±5 ppm (parts per million), which translates to a few seconds of deviation per month.
Q: Can ISL12028IBAZ generate alarms or interrupts? A: Yes, ISL12028IBAZ has built-in alarm functionality that can be programmed to trigger an interrupt or set a flag when a specific time or date condition is met.
Q: Does ISL12028IBAZ support automatic leap year compensation? A: Yes, ISL12028IBAZ has built-in logic to automatically adjust for leap years, eliminating the need for manual intervention in updating the calendar.
Q: What is the operating voltage range of ISL12028IBAZ? A: ISL12028IBAZ operates within a voltage range of 1.8V to 5.5V, making it compatible with a wide range of power supply configurations.
Q: Are there any development tools or software libraries available for ISL12028IBAZ? A: Yes, Renesas provides development tools and software libraries, including drivers and example code, to facilitate the integration and programming of ISL12028IBAZ into various technical solutions.
Please note that these answers are general and may vary depending on the specific requirements and implementation of ISL12028IBAZ in different technical solutions.