Hình ảnh có thể mang tính chất minh họa.
Xem thông số kỹ thuật để biết chi tiết sản phẩm.
MCP795W11-I/ST

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.

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng MCP795W11-I/ST trong giải pháp kỹ thuật

  1. What is the operating voltage range of MCP795W11-I/ST?
    - The operating voltage range of MCP795W11-I/ST is 1.8V to 5.5V.

  2. Can MCP795W11-I/ST be used in automotive applications?
    - Yes, MCP795W11-I/ST is suitable for automotive applications.

  3. What is the typical accuracy of MCP795W11-I/ST's real-time clock/calendar?
    - The typical accuracy of MCP795W11-I/ST's real-time clock/calendar is ±2 minutes per month at 25°C.

  4. Does MCP795W11-I/ST have battery backup for the real-time clock?
    - Yes, MCP795W11-I/ST has a battery backup for the real-time clock.

  5. What communication interfaces does MCP795W11-I/ST support?
    - MCP795W11-I/ST supports I2C and SPI communication interfaces.

  6. Is MCP795W11-I/ST compatible with low-power applications?
    - Yes, MCP795W11-I/ST is compatible with low-power applications.

  7. Can MCP795W11-I/ST operate in extended temperature ranges?
    - Yes, MCP795W11-I/ST can operate in extended temperature ranges from -40°C to +85°C.

  8. What is the maximum frequency output of MCP795W11-I/ST's square wave generator?
    - The maximum frequency output of MCP795W11-I/ST's square wave generator is 8.192kHz.

  9. Does MCP795W11-I/ST have programmable alarms?
    - Yes, MCP795W11-I/ST has two programmable alarms.

  10. Is MCP795W11-I/ST RoHS compliant?
    - Yes, MCP795W11-I/ST is RoHS compliant.