MCP795B21-I/SL

Introduction

The MCP795B21-I/SL is a versatile integrated circuit belonging to the category of real-time clock (RTC) devices. This device is commonly used in various electronic applications to provide accurate timekeeping and calendar functions. The MCP795B21-I/SL offers several characteristics that make it suitable for a wide range of applications, and its compact package and essential features make it an ideal choice for time-sensitive electronic systems.

Basic Information Overview

• Category: Real-Time Clock (RTC) Device
• Use: Accurate timekeeping and calendar functions in electronic applications
• Characteristics: Low power consumption, high accuracy, compact package, essential timekeeping features
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Reliable timekeeping and calendar functions
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier and order size

Specifications

• Operating Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month at 25°C
• Operating Temperature Range: -40°C to +85°C
• Clock Output Frequency: Selectable between 32.768 kHz and 1 Hz
• I2C Interface: Allows for easy integration with microcontrollers and other digital systems

Detailed Pin Configuration

The MCP795B21-I/SL features a standard 8-pin SOIC package with the following pin configuration: 1. VBAT - Backup Battery Input 2. SDA - I2C Serial Data Line 3. SCL - I2C Serial Clock Line 4. GND - Ground 5. X1 - Crystal Connection 1 6. X2 - Crystal Connection 2 7. VDD - Power Supply Input 8. FOUT - Frequency Output

Functional Features

• Battery Backup: Supports backup battery input for uninterrupted timekeeping during power loss
• I2C Interface: Enables seamless communication with microcontrollers and digital systems
• Alarm Function: Provides alarm capabilities for time-based events
• Power Management: Low power consumption design for extended battery life

Advantages and Disadvantages

Advantages

• High timekeeping accuracy
• Wide operating voltage range
• Compact form factor
• Easy integration with microcontrollers

Disadvantages

• Limited clock output frequency options
• May require external crystal for precise timekeeping

Working Principles

The MCP795B21-I/SL operates by utilizing an internal oscillator and an optional external crystal to maintain accurate timekeeping. When powered, the device keeps track of time and date, while also providing alarm functionality and battery backup support for uninterrupted operation.

Detailed Application Field Plans

The MCP795B21-I/SL finds extensive application in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Industrial automation - Medical devices - Automotive applications

Detailed and Complete Alternative Models

Some alternative models to the MCP795B21-I/SL include: - DS3231 - Real-Time Clock Module - PCF8563 - I2C Real-Time Clock - RV-1805-C3 - Ultra-Low Power RTC Module

In conclusion, the MCP795B21-I/SL is a reliable and versatile RTC device that offers high accuracy, low power consumption, and essential timekeeping features. Its compact package and functional characteristics make it well-suited for a wide range of electronic applications.

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