Maxim Integrated
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DS1307ZN+T&R
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DS1307ZN+T&R

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Real-Time Clock (RTC) module
  • Characteristics:
    • Low power consumption
    • I2C interface for communication
    • Accurate timekeeping
    • Battery backup
  • Package: Surface Mount Technology (SMT)
  • Essence: Highly reliable and precise real-time clock module
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 2.0V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Timekeeping Accuracy: ±2ppm at 25°C
  • Clock Frequency: 32.768kHz
  • Battery Backup Voltage: 1.8V to 5.5V
  • I2C Bus Interface: Supports Standard (100kHz) and Fast (400kHz) modes

Detailed Pin Configuration

The DS1307ZN+T&R 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. SQW/OUT: Square Wave Output or Interrupt Output
  6. RST: Reset Input
  7. NC: No Connection
  8. VBAT: Battery Backup Input

Functional Features

  • Real-time clock with calendar functionality
  • Automatic leap year compensation
  • Programmable square wave output
  • Battery backup for timekeeping during power loss
  • 56 bytes of non-volatile RAM for data storage
  • Two-wire I2C interface for easy integration

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life - Accurate timekeeping with high precision - Easy integration with I2C interface - Battery backup ensures uninterrupted operation during power loss

Disadvantages: - Limited RAM capacity for data storage - No built-in temperature compensation

Working Principles

The DS1307ZN+T&R is based on a crystal oscillator that generates a precise 32.768kHz clock signal. This clock signal is used to keep track of time and date information. The module communicates with the microcontroller or host system through the I2C bus, allowing easy access to the real-time clock and calendar functions. In case of a power failure, the battery backup ensures that the clock continues to run accurately.

Detailed Application Field Plans

The DS1307ZN+T&R is widely used in various applications, including:

  1. Embedded systems: Provides accurate timekeeping for industrial automation, smart home devices, and IoT applications.
  2. Consumer electronics: Used in digital cameras, audio/video recorders, and portable gaming devices to maintain accurate timestamps.
  3. Medical equipment: Enables precise timing and scheduling in medical devices such as patient monitors and infusion pumps.
  4. Automotive systems: Used in car navigation systems, dashboard clocks, and event logging applications.
  5. Security systems: Provides accurate time stamps for surveillance cameras, access control systems, and alarm panels.

Detailed and Complete Alternative Models

  1. DS3231: Offers higher timekeeping accuracy and temperature-compensated crystal oscillator.
  2. PCF8563: Provides similar functionality with low power consumption and I2C interface.
  3. MCP7940N: Real-time clock module with battery backup and I2C/SPI interface.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DS1307ZN+T&R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DS1307ZN+T&R in technical solutions:

  1. Q: What is DS1307ZN+T&R? A: DS1307ZN+T&R is a real-time clock (RTC) module manufactured by Maxim Integrated. It provides accurate timekeeping for various applications.

  2. Q: How does DS1307ZN+T&R work? A: DS1307ZN+T&R uses an external crystal oscillator to generate precise clock signals, which are then used to keep track of time and date.

  3. Q: What are the main features of DS1307ZN+T&R? A: Some key features include battery backup, I2C interface, programmable square wave output, and low power consumption.

  4. Q: Can DS1307ZN+T&R be used with microcontrollers? A: Yes, DS1307ZN+T&R can be easily interfaced with microcontrollers using the I2C protocol, making it suitable for embedded systems.

  5. Q: How accurate is DS1307ZN+T&R? A: DS1307ZN+T&R has a typical accuracy of ±2 minutes per month, but this can vary depending on factors like temperature and voltage fluctuations.

  6. Q: Does DS1307ZN+T&R have a built-in battery backup? A: No, DS1307ZN+T&R does not have a built-in battery backup. An external coin cell or supercapacitor is required to maintain timekeeping during power loss.

  7. Q: Can DS1307ZN+T&R be used in battery-powered devices? A: Yes, DS1307ZN+T&R has low power consumption and can be used in battery-powered devices, ensuring accurate timekeeping even when the device is not powered.

  8. Q: Can DS1307ZN+T&R be used in industrial applications? A: Yes, DS1307ZN+T&R is suitable for industrial applications that require precise timekeeping, such as data loggers, automation systems, and control panels.

  9. Q: Are there any limitations to using DS1307ZN+T&R? A: One limitation is that DS1307ZN+T&R does not handle leap years automatically. Software adjustments are required to account for leap year calculations.

  10. Q: Where can I find resources and documentation for DS1307ZN+T&R? A: You can find datasheets, application notes, and other resources on the Maxim Integrated website or by searching online for "DS1307ZN+T&R documentation".