MCP795W11-I/ST

Product Overview

Category

The MCP795W11-I/ST 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
• Integrated EEPROM for data storage
• I2C interface for communication

Package

The MCP795W11-I/ST is available in a small surface mount package, making it suitable for compact designs.

Essence

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

Packaging/Quantity

The MCP795W11-I/ST is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Memory Size: 64 bytes of EEPROM

Detailed Pin Configuration

The MCP795W11-I/ST has a total of 8 pins, each serving a specific purpose:

1. VDD - 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/INT - Square Wave Output / Interrupt output
6. VBAT - Backup battery input for maintaining timekeeping during power loss
7. VSS - Ground connection
8. OSC1/CLKI - Oscillator input

Functional Features

• Real-time clock with calendar functionality
• Alarm and timer functions
• Battery backup for continuous timekeeping during power loss
• Programmable square wave output
• I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Small form factor for space-constrained designs
• Integrated EEPROM for data storage
• Easy integration with microcontrollers through I2C interface

Disadvantages

• Limited memory size (64 bytes)
• Requires an external backup battery for continuous timekeeping during power loss

Working Principles

The MCP795W11-I/ST utilizes an internal oscillator to keep track of time. It synchronizes with an external clock source or can operate using its internal oscillator. The device communicates with a microcontroller or other devices through the I2C interface, allowing for easy configuration and retrieval of time and date information.

Detailed Application Field Plans

The MCP795W11-I/ST finds applications in various fields, including:

1. Consumer Electronics: Used in digital cameras, portable media players, and smartwatches for accurate timekeeping.
2. Industrial Automation: Integrated into industrial control systems for precise timing and synchronization.
3. Automotive: Utilized in automotive infotainment systems and dashboard displays for maintaining accurate time.
4. Medical Devices: Incorporated into medical equipment for time-sensitive operations and data logging.

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock module with higher timekeeping accuracy and larger memory capacity.
2. PCF8563 - Real-Time Clock module with integrated temperature compensation and alarm functions.
3. DS1307 - Basic Real-Time Clock module with low power consumption and simple I2C interface.

(Note: These alternative models are provided as examples and may vary in terms of specifications and features.)

In conclusion, the MCP795W11-I/ST is a highly reliable Real-Time Clock module that offers accurate timekeeping, low power consumption, and easy integration with microcontrollers. Its small form factor and integrated EEPROM make it suitable for a wide range of applications in consumer electronics, industrial automation, automotive, and medical devices.