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ISL12028IV27AZ
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ISL12028IV27AZ

Product Overview

Category

The ISL12028IV27AZ belongs to the category of real-time clock (RTC) ICs.

Use

It is used to keep track of time and date in electronic devices, providing accurate timekeeping functionality.

Characteristics

  • Low power consumption
  • Integrated crystal compensation
  • Battery backup for continuous operation
  • I2C interface for communication

Package

The ISL12028IV27AZ comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide precise timekeeping with minimal power consumption.

Packaging/Quantity

The ISL12028IV27AZ is typically packaged in reels and available in quantities suitable for production runs.

Specifications

  • Operating Voltage: 1.8V to 5.5V
  • Time Accuracy: ±5ppm (±0.432 seconds/day)
  • Operating Temperature Range: -40°C to +85°C
  • I2C Bus Frequency: 100kHz or 400kHz
  • Battery Backup Current: 300nA (typical)

Detailed Pin Configuration

The ISL12028IV27AZ has a standard 8-pin SOIC package with the following pin configuration: 1. VCC 2. SDA (I2C Data) 3. SCL (I2C Clock) 4. GND 5. NC (Not Connected) 6. FOUT (Frequency Output) 7. X1 (Crystal Connection) 8. X2 (Crystal Connection)

Functional Features

  • Automatic leap year compensation
  • Daylight saving time adjustment
  • Alarm function with programmable repeat intervals
  • Power-fail detection and battery switchover

Advantages and Disadvantages

Advantages

  • Low power consumption extends battery life
  • Integrated features reduce external component count
  • Accurate timekeeping over a wide temperature range

Disadvantages

  • Limited output frequency options
  • Requires an external crystal for timekeeping accuracy

Working Principles

The ISL12028IV27AZ utilizes an internal oscillator and compensates for crystal inaccuracies to maintain precise timekeeping. It also incorporates power management features to ensure continuous operation even during power loss.

Detailed Application Field Plans

The ISL12028IV27AZ is suitable for various applications, including: - Portable consumer electronics - Industrial automation systems - Automotive dashboard displays - Medical devices - Smart home appliances

Detailed and Complete Alternative Models

Some alternative models to the ISL12028IV27AZ include: - DS3231 - MCP79410 - RV-1805-C3

In conclusion, the ISL12028IV27AZ offers reliable timekeeping functionality with low power consumption, making it suitable for a wide range of electronic devices.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von ISL12028IV27AZ in technischen Lösungen auf

  1. What is the ISL12028IV27AZ?

    • The ISL12028IV27AZ is a real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and a 64-byte battery-backed SRAM.

  2. What are the key features of the ISL12028IV27AZ?

    • The key features include a wide operating voltage range, low power consumption, I2C interface, alarm function, and automatic backup to battery or supercapacitor.

  3. How can the ISL12028IV27AZ be used in technical solutions?

    • It can be used for timekeeping in various applications such as industrial automation, consumer electronics, medical devices, and automotive systems.

  4. What is the operating voltage range of the ISL12028IV27AZ?

    • The operating voltage range is typically from 1.6V to 5.5V, making it suitable for both battery-powered and line-powered applications.

  5. Does the ISL12028IV27AZ have any built-in temperature compensation?

    • Yes, it has an integrated TCXO that provides accurate timekeeping over a wide temperature range.

  6. Can the ISL12028IV27AZ operate in low-power modes?

    • Yes, it has low-power modes that help minimize power consumption, making it suitable for battery-operated devices.

  7. What is the maximum frequency of the I2C interface supported by the ISL12028IV27AZ?

    • The I2C interface supports a maximum frequency of 400kHz.

  8. Does the ISL12028IV27AZ have an alarm function?

    • Yes, it has a programmable alarm function that can be used to trigger events at specific times.

  9. Is the SRAM in the ISL12028IV27AZ battery-backed?

    • Yes, the 64-byte SRAM is battery-backed, ensuring data retention during power loss.

  10. What are some typical applications of the ISL12028IV27AZ in technical solutions?

    • Typical applications include data logging, event scheduling, system wake-up and power management, and accurate time stamping for data acquisition systems.