MCP795W11-I/SL

Product Overview

Category

The MCP795W11-I/SL belongs to the category of Real-Time Clocks (RTCs).

Use

This product is primarily used for timekeeping and synchronization purposes in various electronic devices.

Characteristics

• High accuracy timekeeping
• Low power consumption
• Small form factor
• I2C interface for easy integration
• Wide operating voltage range

Package

The MCP795W11-I/SL comes in a small surface mount package (SL) for easy PCB mounting.

Essence

The essence of this product lies in its ability to accurately keep track of time and provide synchronization capabilities to electronic systems.

Packaging/Quantity

The MCP795W11-I/SL is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

• Operating Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month
• Operating Temperature Range: -40°C to +85°C
• I2C Bus Frequency: Up to 400 kHz
• Battery Backup Voltage: 1.3V to 5.5V

Detailed Pin Configuration

The MCP795W11-I/SL has the following pin configuration:

1. VDD - Power supply input
2. GND - Ground connection
3. SDA - I2C data line
4. SCL - I2C clock line
5. SQW/INT - Square wave output or interrupt output
6. VBAT - Battery backup input
7. X1 - Crystal oscillator input
8. X2 - Crystal oscillator output

Functional Features

• Real-time clock with calendar functionality
• Alarm and timer functions
• Battery backup for timekeeping during power loss
• Programmable square wave output
• Interrupt output for event-driven applications
• Power-fail timestamp and battery switch-over

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Small form factor for space-constrained designs
• Easy integration with I2C interface
• Wide operating voltage range allows for flexibility in power supply

Disadvantages

• Limited timekeeping accuracy compared to more precise RTCs
• Lack of additional advanced features found in higher-end RTCs

Working Principles

The MCP795W11-I/SL utilizes an internal oscillator and a crystal to generate accurate timekeeping signals. It communicates with the host microcontroller through the I2C bus, allowing for easy configuration and data exchange.

During normal operation, the device keeps track of time and date, while also providing alarm and timer functionalities. In case of a power loss, the built-in battery backup ensures that the clock continues to run accurately.

Detailed Application Field Plans

The MCP795W11-I/SL finds applications in various electronic devices where accurate timekeeping and synchronization are crucial. Some potential application fields include:

1. Consumer electronics: Smartphones, tablets, and wearables.
2. Industrial automation: Programmable logic controllers (PLCs), industrial timers, and data loggers.
3. Automotive: On-board computers, infotainment systems, and navigation devices.
4. Medical devices: Patient monitoring systems, infusion pumps, and diagnostic equipment.
5. Internet of Things (IoT): Smart home devices, environmental sensors, and asset tracking systems.

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with high accuracy and temperature compensation.
2. PCF8563 - Low-power Real-Time Clock with integrated alarm and timer functions.
3. DS1307 - Basic Real-Time Clock module with I2C interface and battery backup.

These alternative models offer similar functionality and can be considered as alternatives to the MCP795W11-I/SL.

In conclusion, the MCP795W11-I/SL is a reliable Real-Time Clock with high accuracy and low power consumption. Its small form factor and easy integration make it suitable for various electronic devices requiring precise timekeeping and synchronization capabilities.