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ISL12028IV30AZ-T
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ISL12028IV30AZ-T

Product Overview

Category

ISL12028IV30AZ-T belongs to the category of Real-Time Clocks (RTCs).

Use

It is primarily used for timekeeping and calendar functions in various electronic devices.

Characteristics

  • Low power consumption
  • High accuracy
  • Integrated crystal compensation
  • Wide operating voltage range
  • Small package size

Package

ISL12028IV30AZ-T is available in a small surface-mount package.

Essence

The essence of ISL12028IV30AZ-T lies in its ability to accurately keep track of time and date, providing reliable timekeeping functionality to electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a specific quantity per package depending on the manufacturer's specifications.

Specifications

  • Operating Voltage Range: 1.8V to 5.5V
  • Timekeeping Accuracy: ±5ppm (parts per million)
  • Temperature Range: -40°C to +85°C
  • Supply Current: 200nA (typical)
  • Battery Backup Voltage: 1.3V to 5.5V
  • I2C Interface: Supports standard and fast mode (up to 400kHz)

Detailed Pin Configuration

ISL12028IV30AZ-T has a total of 8 pins:

  1. VBAT: Battery backup input
  2. GND: Ground
  3. SDA: Serial data input/output for I2C communication
  4. SCL: Serial clock input for I2C communication
  5. IRQ: Interrupt output
  6. VCC: Power supply input
  7. NC: No connection
  8. X1/X2: Crystal oscillator connections

Functional Features

  • Automatic leap year compensation
  • Alarm function with programmable interrupt
  • Power-fail detection and switch circuitry
  • Battery backup for timekeeping during power loss
  • Oscillator stop detection

Advantages and Disadvantages

Advantages

  • High accuracy timekeeping
  • Low power consumption
  • Wide operating voltage range
  • Integrated crystal compensation

Disadvantages

  • Limited temperature range (-40°C to +85°C)
  • Requires an external crystal oscillator

Working Principles

ISL12028IV30AZ-T utilizes an internal oscillator and a crystal oscillator to accurately measure time. It communicates with the host device through the I2C interface, providing timekeeping functionality even during power loss.

Detailed Application Field Plans

ISL12028IV30AZ-T finds applications in various electronic devices that require accurate timekeeping, such as:

  1. Smartwatches
  2. Medical devices
  3. Industrial automation systems
  4. Automotive electronics
  5. Consumer electronics

Detailed and Complete Alternative Models

  1. DS3231 - Real-Time Clock Module
  2. PCF8563 - I2C Real-Time Clock
  3. MCP7940N - Real-Time Clock/Calendar

These alternative models offer similar functionalities and can be considered as alternatives to ISL12028IV30AZ-T depending on specific requirements.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de ISL12028IV30AZ-T em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of ISL12028IV30AZ-T in technical solutions:

  1. Q: What is ISL12028IV30AZ-T? A: ISL12028IV30AZ-T is a real-time clock (RTC) module with an integrated crystal oscillator, designed for accurate timekeeping in various technical applications.

  2. Q: What voltage does ISL12028IV30AZ-T operate at? A: ISL12028IV30AZ-T operates at a voltage range of 1.8V to 5.5V.

  3. Q: Can ISL12028IV30AZ-T be used in battery-powered devices? A: Yes, ISL12028IV30AZ-T is suitable for battery-powered devices due to its low power consumption.

  4. Q: Does ISL12028IV30AZ-T have an alarm feature? A: Yes, ISL12028IV30AZ-T has a programmable alarm function that can trigger an interrupt or output signal at a specified time.

  5. Q: Can ISL12028IV30AZ-T be used as a standalone RTC module? A: Yes, ISL12028IV30AZ-T can function as a standalone RTC module without the need for an external microcontroller.

  6. Q: What is the accuracy of ISL12028IV30AZ-T? A: ISL12028IV30AZ-T has a typical accuracy of ±5ppm (parts per million), ensuring precise timekeeping.

  7. Q: Does ISL12028IV30AZ-T support temperature compensation? A: Yes, ISL12028IV30AZ-T features an integrated temperature sensor for automatic temperature compensation, enhancing accuracy over varying temperatures.

  8. Q: Can ISL12028IV30AZ-T be used in industrial applications? A: Yes, ISL12028IV30AZ-T is suitable for industrial applications due to its wide operating temperature range and robust design.

  9. Q: Does ISL12028IV30AZ-T have non-volatile memory? A: Yes, ISL12028IV30AZ-T has 256 bytes of non-volatile RAM (NVRAM) that can be used for storing data even when power is lost.

  10. Q: What interfaces does ISL12028IV30AZ-T support? A: ISL12028IV30AZ-T supports I2C (Inter-Integrated Circuit) interface, making it compatible with a wide range of microcontrollers and other devices.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.