Microchip Technology
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MCP79402-I/SN
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MCP79402-I/SN

Product Overview

Category

The MCP79402-I/SN belongs to the category of Real-Time Clocks (RTCs).

Use

It is used to keep track of time and date information in various electronic devices.

Characteristics

  • Low power consumption
  • Integrated oscillator
  • Battery backup for continuous timekeeping
  • I2C interface for communication

Package

The MCP79402-I/SN comes in a 8-pin SOIC package.

Essence

The essence of the MCP79402-I/SN lies in its ability to provide accurate timekeeping functionality with minimal power consumption.

Packaging/Quantity

It is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Supply Voltage: 1.8V to 5.5V
  • Timekeeping Current: 400nA at 3.0V, 200nA at 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • I2C Communication: Up to 400kHz

Detailed Pin Configuration

  1. VBAT - Backup Battery Input
  2. SDA - I2C Data Line
  3. SCL - I2C Clock Line
  4. SQW/INT - Square Wave Output/Interrupt Output
  5. GND - Ground
  6. VCC - Power Supply
  7. X1 - Crystal Connection
  8. X2 - Crystal Connection

Functional Features

  • Real-time clock/calendar with battery backup
  • Alarm functions
  • Timer functions
  • Power-fail timestamp
  • 64 bytes of SRAM

Advantages

  • Low power consumption extends battery life
  • Integrated oscillator simplifies design
  • I2C interface allows for easy integration with microcontrollers

Disadvantages

  • Limited SRAM capacity
  • Requires an external crystal for timekeeping accuracy

Working Principles

The MCP79402-I/SN utilizes an integrated oscillator and a backup battery to maintain accurate timekeeping even when the main power source is disconnected. It communicates with the host microcontroller through the I2C interface, allowing for seamless integration into various electronic systems.

Detailed Application Field Plans

The MCP79402-I/SN is commonly used in applications such as: - Embedded systems - Consumer electronics - Industrial automation - Automotive systems

Detailed and Complete Alternative Models

Some alternative models to the MCP79402-I/SN include: - DS3231 - PCF85263A - RV-1805-C3

In conclusion, the MCP79402-I/SN is a reliable real-time clock device with low power consumption and essential features for accurate timekeeping in a variety of electronic applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של MCP79402-I/SN בפתרונות טכניים

  1. What is the operating voltage range of MCP79402-I/SN?
    - The operating voltage range of MCP79402-I/SN is 1.8V to 5.5V.

  2. Can MCP79402-I/SN be used for real-time clock (RTC) applications?
    - Yes, MCP79402-I/SN is designed for real-time clock (RTC) applications.

  3. What is the typical backup battery life of MCP79402-I/SN?
    - The typical backup battery life of MCP79402-I/SN is 17 years.

  4. Does MCP79402-I/SN have a built-in temperature sensor?
    - Yes, MCP79402-I/SN features a built-in temperature sensor.

  5. What communication interfaces are supported by MCP79402-I/SN?
    - MCP79402-I/SN supports I2C interface for communication.

  6. Is MCP79402-I/SN compatible with low-power applications?
    - Yes, MCP79402-I/SN is suitable for low-power applications.

  7. Can MCP79402-I/SN operate in extended temperature ranges?
    - Yes, MCP79402-I/SN can operate in extended temperature ranges from -40°C to +85°C.

  8. What is the accuracy of the timekeeping function in MCP79402-I/SN?
    - The timekeeping function in MCP79402-I/SN has an accuracy of ±20 ppm.

  9. Does MCP79402-I/SN support alarm functions?
    - Yes, MCP79402-I/SN provides alarm functions with programmable repeat intervals.

  10. Is MCP79402-I/SN RoHS compliant?
    - Yes, MCP79402-I/SN is RoHS compliant, ensuring environmental safety standards are met.