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MCP2221AT-I/SL
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MCP2221AT-I/SL

Product Overview

The MCP2221AT-I/SL belongs to the category of USB-to-UART/I2C serial converter. It is commonly used for interfacing USB with UART and I2C devices. The characteristics of this product include its small package size, versatile use in various applications, and its ability to provide USB connectivity to devices that have a UART or I2C interface. The essence of MCP2221AT-I/SL lies in its capability to simplify USB designs by eliminating the need for USB-specific firmware development. The product is typically available in surface-mount packages and is often sold in reels or tubes.

Specifications

  • Interface: USB 2.0
  • Supported Protocols: UART, I2C
  • Operating Voltage: 3.3V
  • Package Type: SOIC
  • Package Size: 14-pin

Detailed Pin Configuration

The MCP2221AT-I/SL features a 14-pin SOIC package with pins allocated for USB, UART, I2C, and general-purpose input/output (GPIO) functionalities. The pin configuration includes dedicated pins for power, ground, data transfer, and control signals.

Functional Features

  • USB-to-UART/I2C Serial Converter
  • On-Chip USB Transceiver
  • Configurable GPIO Pins
  • Integrated EEPROM
  • Support for USB suspend/resume signaling

Advantages and Disadvantages

Advantages

  • Simplifies USB Designs
  • Eliminates USB Firmware Development
  • Small Package Size
  • Versatile Interface Support

Disadvantages

  • Limited Operating Voltage
  • Requires External Crystal for Accurate Timing

Working Principles

The MCP2221AT-I/SL operates by converting USB signals to UART or I2C protocols, allowing seamless communication between USB-enabled devices and those utilizing UART or I2C interfaces. It achieves this through an integrated USB transceiver and configurable GPIO pins, providing flexibility in interfacing with various devices.

Detailed Application Field Plans

The MCP2221AT-I/SL finds extensive application in embedded systems, industrial automation, consumer electronics, and IoT devices. It is commonly used for connecting microcontrollers, sensors, and other peripheral devices to a host system via USB, UART, or I2C interfaces.

Detailed and Complete Alternative Models

  • FT232R - USB to UART Interface
  • CP2110 - USB to I2C Bridge Controller
  • PL2303HXD - USB to Serial UART Interface

In conclusion, the MCP2221AT-I/SL offers a compact and efficient solution for bridging USB to UART and I2C interfaces, making it a valuable component in various electronic designs.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van MCP2221AT-I/SL in technische oplossingen

  1. Question: What is the maximum communication speed supported by MCP2221AT-I/SL?
    Answer: The MCP2221AT-I/SL supports full-speed USB communication up to 12 Mbps.

  2. Question: Can the MCP2221AT-I/SL be used for I2C communication?
    Answer: Yes, the MCP2221AT-I/SL can be used as an I2C master or slave device.

  3. Question: What are the voltage levels supported by the GPIO pins of MCP2221AT-I/SL?
    Answer: The GPIO pins support both 3.3V and 5V logic levels.

  4. Question: Is the MCP2221AT-I/SL compatible with Windows, Linux, and macOS?
    Answer: Yes, the MCP2221AT-I/SL is compatible with all these operating systems.

  5. Question: Can the MCP2221AT-I/SL be used for UART communication?
    Answer: Yes, the MCP2221AT-I/SL supports UART communication at various baud rates.

  6. Question: Does the MCP2221AT-I/SL require external crystal or resonator for USB operation?
    Answer: No, the MCP2221AT-I/SL has an integrated oscillator for USB operation.

  7. Question: What is the maximum current that can be sourced/sinked by the GPIO pins?
    Answer: The GPIO pins can source/sink up to 25 mA of current.

  8. Question: Is there a software development kit (SDK) available for the MCP2221AT-I/SL?
    Answer: Yes, Microchip provides a comprehensive SDK for developing applications using the MCP2221AT-I/SL.

  9. Question: Can the MCP2221AT-I/SL be used for interfacing with sensors and actuators?
    Answer: Yes, the MCP2221AT-I/SL can be used to interface with a wide range of sensors and actuators.

  10. Question: Are there any application notes or reference designs available for the MCP2221AT-I/SL?
    Answer: Yes, Microchip provides application notes and reference designs to help users implement the MCP2221AT-I/SL in various technical solutions.