MCP79402T-I/SN

Product Overview

Category

The MCP79402T-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 MCP79402T-I/SN is available in a 8-pin SOIC package.

Essence

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

Packaging/Quantity

The MCP79402T-I/SN is typically packaged 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. VSS - Ground
7. VDD - Power Supply
8. X1 - Crystal Connection

Functional Features

• Real-time clock/calendar (RTC) with battery backup
• Alarm functions
• Timer functions
• Power-fail timestamp
• I2C interface for communication

Advantages

• Low power consumption extends battery life
• Integrated oscillator simplifies design
• Battery backup ensures continuous timekeeping
• I2C interface allows easy integration with microcontrollers

Disadvantages

• Limited temperature range compared to some other RTCs
• Requires an external crystal for timekeeping accuracy

Working Principles

The MCP79402T-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 the system to read and set the time and date information.

Detailed Application Field Plans

The MCP79402T-I/SN is commonly used in applications such as: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - IoT devices

Detailed and Complete Alternative Models

Some alternative models to the MCP79402T-I/SN include: - DS3231 - Another popular RTC with higher temperature range - PCF85263 - RTC with integrated temperature sensor - RV-1805-C3 - Ultra-low power RTC with I2C interface

In conclusion, the MCP79402T-I/SN is a reliable and efficient Real-Time Clock suitable for various electronic applications, offering low power consumption, integrated features, and precise timekeeping capabilities.

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