Maxim Integrated
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DS1390U-3+T&R
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DS1390U-3+T&R

Product Overview

Category

The DS1390U-3+T&R belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for various applications, including timekeeping and real-time clock functions.

Characteristics

  • The DS1390U-3+T&R is a highly accurate and reliable integrated circuit.
  • It offers precise timekeeping capabilities with low power consumption.
  • The IC is designed to operate in a wide temperature range, making it suitable for various environments.
  • It has a compact form factor, allowing for easy integration into electronic devices.

Package

The DS1390U-3+T&R is available in a small surface-mount package, which ensures ease of installation and compatibility with modern manufacturing processes.

Essence

The essence of the DS1390U-3+T&R lies in its ability to provide accurate timekeeping functionality, enabling synchronization and scheduling in electronic systems.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of DS1390U-3+T&R ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Supply Voltage: 2.7V to 5.5V
  • Timekeeping Accuracy: ±2ppm (parts per million)
  • Operating Temperature Range: -40°C to +85°C
  • Interface: I2C (Inter-Integrated Circuit)
  • Memory: 64 bytes of non-volatile RAM
  • Oscillator: Integrated crystal oscillator

Detailed Pin Configuration

The DS1390U-3+T&R features a standard pin configuration, as follows:

  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. SQW/INT - Square wave output or interrupt pin
  6. RST - Reset pin

Functional Features

  • Real-time clock (RTC) functionality with accurate timekeeping
  • Battery backup support for maintaining time during power loss
  • Alarm and timer functions for scheduling events
  • Programmable square wave output for various applications
  • Interrupt capability for triggering specific actions
  • Power management features to optimize energy consumption

Advantages and Disadvantages

Advantages

  • High accuracy and reliability in timekeeping
  • Low power consumption, suitable for battery-powered devices
  • Wide operating temperature range for versatile applications
  • Compact form factor for easy integration into electronic systems
  • Flexible programming options for customization

Disadvantages

  • Limited non-volatile RAM capacity (64 bytes)
  • Dependency on an external power source for continuous operation
  • Lack of advanced features found in more specialized RTC ICs

Working Principles

The DS1390U-3+T&R utilizes an integrated crystal oscillator to generate precise clock signals. It communicates with the host system through the I2C interface, allowing for easy configuration and data exchange. The IC maintains accurate timekeeping by continuously updating its internal registers based on the crystal oscillator's frequency.

During power loss, the DS1390U-3+T&R can rely on a backup battery to ensure uninterrupted timekeeping. This feature is crucial in applications where maintaining accurate time is essential, such as in industrial automation, medical devices, and communication systems.

Detailed Application Field Plans

The DS1390U-3+T&R finds application in various fields, including:

  1. Consumer Electronics: Used in digital cameras, portable media players, and smartwatches for accurate time display and synchronization.
  2. Automotive: Integrated into car infotainment systems, dashboard displays, and navigation units to provide precise timekeeping and scheduling functions.
  3. Industrial Automation: Employed in programmable logic controllers (PLCs), industrial timers, and data loggers for time-sensitive operations and event scheduling.
  4. Medical Devices: Utilized in medical equipment such as patient monitors, infusion pumps, and diagnostic devices to ensure accurate time synchronization and event logging.
  5. Communication Systems: Integrated into network switches, routers, and telecommunication equipment for precise timing synchronization and network coordination.

Detailed and Complete Alternative Models

  1. DS3231 - A highly accurate RTC IC with additional features like temperature compensation and alarm functionality.
  2. PCF8563 - An I2C-based RTC IC with integrated crystal oscillator and battery backup support.
  3. MCP7940N - A low-power RTC IC with advanced features like battery switchover and power-fail timestamping.

These alternative models offer similar timekeeping capabilities but may have additional features or different form factors that cater to specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DS1390U-3+T&R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DS1390U-3+T&R in technical solutions:

  1. Q: What is DS1390U-3+T&R? A: DS1390U-3+T&R is a specific model of real-time clock (RTC) module manufactured by Maxim Integrated. It provides accurate timekeeping functionality for various technical applications.

  2. Q: What are the key features of DS1390U-3+T&R? A: Some key features of DS1390U-3+T&R include low power consumption, I2C interface, programmable alarms, temperature compensation, and battery backup.

  3. Q: How can DS1390U-3+T&R be used in technical solutions? A: DS1390U-3+T&R can be used as a reliable timekeeping component in a wide range of applications such as industrial automation, data loggers, medical devices, smart meters, and more.

  4. Q: How accurate is DS1390U-3+T&R in timekeeping? A: DS1390U-3+T&R has an accuracy of ±2 minutes per month at room temperature, making it suitable for most time-sensitive applications.

  5. Q: Can DS1390U-3+T&R operate without an external power source? A: No, DS1390U-3+T&R requires an external power source. It has a built-in battery backup that ensures continuous timekeeping even during power outages.

  6. Q: Is DS1390U-3+T&R compatible with microcontrollers and development boards? A: Yes, DS1390U-3+T&R uses the I2C communication protocol, which is widely supported by microcontrollers and development boards, making it easy to integrate into various projects.

  7. Q: Can DS1390U-3+T&R be programmed to trigger specific events at certain times? A: Yes, DS1390U-3+T&R supports programmable alarms, allowing you to set specific time-based events or triggers in your application.

  8. Q: Does DS1390U-3+T&R have temperature compensation for accurate timekeeping? A: Yes, DS1390U-3+T&R incorporates temperature compensation circuitry to ensure accurate timekeeping even in varying temperature conditions.

  9. Q: What is the operating voltage range of DS1390U-3+T&R? A: DS1390U-3+T&R operates within a voltage range of 2.97V to 5.5V, providing flexibility in different power supply scenarios.

  10. Q: Are there any additional resources available for programming and integrating DS1390U-3+T&R? A: Yes, Maxim Integrated provides comprehensive documentation, datasheets, and application notes that can assist in programming and integrating DS1390U-3+T&R into technical solutions.

Please note that the answers provided here are general and may vary depending on the specific requirements and use cases of DS1390U-3+T&R in different applications.