Microchip Technology Inc

MCP2221A

In Production

The MCP2221A is a USB-to-UART/I2C serial converter which enables USB connectivity in applications that have a UART and I2C interfaces.  The device reduces external components by integrating the USB termination resistors and the oscillator needed for USB operation. The MCP2221A also has four GP pins providing miscellaneous functionalities (GPIO, USBCFG, SSPND, Clock Output, ADC, DAC, interrupt detector).

The MCP2221A is identical to the MCP2221 in all aspects except for the maximum supported baud rate of the UART, which has been increased from 115200 (MCP2221) to 460800 (MCP2221A).  All MCP2221 USB Drivers and Software can be used for the MCP2221A.

 

    Features

        Universal Serial Bus (USB)

        • Supports full-speed USB (12 Mb/s)
        • Implements USB protocol composite device:
          • Communication Device Class (CDC) for communications and configuration
          • Human Interface Device (HID) for I2C™, chip control and configuration
        • 128-byte Buffer to handle data throughput at any UART baud rate:
          • 64-byte Transmit
          • 64-byte Receive
        • Human Interface Device (HID) for both I2C™ communication and control.
          • 64 byte buffer to handle data throughput at any I2C™ baud rate
        • Fully configurable VID and PID assignments, and string descriptors
        • Bus-powered or self-powered
        • USB 2.0 Compliant

        USB Driver and Software Support

        CDC and Universal Asynchronous Receiver/Transmitter (UART) Options

        I2C™/SMBus

        SMBus Master

        General Purpose Input/Output (GPIO) Pins

        Highly Configurable 

        Operating voltage: 3.0 – 5.5V

        Electrostatic Discharge (ESD) protection:

        • 4 kV Human Body Model (HBM)

        Industrial (I) Operating Temperature: -40°C to +85°C

         

    Parameter Name
    Value
    Description
    USB-to-I2C/UART/SMBus Protocol Converter with GPIO (Master Mode)
    Upstream Port
    USB 2.0
    USB Speed
    Full Speed
    Downstream Ports
    I2C/SMBus, UART
    MCU Interface
    I2C/SMBus, UART
    Tx Buffer Size (bytes)
    64
    Rx Buffer Size (bytes)
    64
    GPIOs
    4
    Op Voltage (V)
    3.0 to 5.5
    Temp Range Min (°C)
    -40
    Temp Range Max (°C)
    85
    Documentation
    Data Sheets
    07/07/2017
    1223KB
      Software
     
     
     
     
    Software
    07/24/2014
    1KB
    Software
    07/24/2014
    2KB
    Software
    10/09/2014
    727KB
    Software
    10/20/2016
    5175KB
    Software
    06/17/2015
    2464KB
    Software
    05/30/2016
    3050KB
    Software
    10/13/2017
    3129KB
    Software
    07/21/2014
    5759KB
    Software
    02/08/2016
    1922KB
    Software
    11/26/2014
    7KB
    Software
    02/16/2015
    5936KB
    Software
    01/12/2016
    8736KB
      Silicon Product
     
     
     
     
    Silicon Product
    04/08/2016
    0B
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP2221A-I/ML
    16
    QFN
    -40C to +85C
    TUBE
    2.08
    1.73
    1.58
    1.52
    1.51
    MCP2221A-I/P
    14
    PDIP
    -40C to +85C
    TUBE
    2.27
    1.89
    1.72
    1.66
    1.64
    MCP2221A-I/SL
    14
    SOIC
    -40C to +85C
    TUBE
    1.89
    1.58
    1.44
    1.39
    1.37
    MCP2221A-I/ST
    14
    TSSOP
    -40C to +85C
    TUBE
    2.08
    1.73
    1.58
    1.52
    1.51
    MCP2221AT-I/ML
    16
    QFN
    -40C to +85C
    T/R
    2.08
    1.73
    1.58
    1.52
    1.51
    MCP2221AT-I/SL
    14
    SOIC
    -40C to +85C
    T/R
    1.89
    1.58
    1.44
    1.39
    1.37
    MCP2221AT-I/ST
    14
    TSSOP
    -40C to +85C
    T/R
    2.08
    1.73
    1.58
    1.52
    1.51

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MCP2221 I2C Demo Board ( ADM00678 )

      MCP2221

      The MCP2221 I2C Demonstration Board allows the user to communicate through a PC application to I2C slave devices by using the MCP2221 device as USB-to-I2C Master converter (bridge). The board can also work at the same time as a USB-to-RS232 (UART) bridge.

    • MCP2221 Breakout Module ( ADM00559 )

      MCP2221

      The MCP2221 Breakout Module is a development and evaluation platform comprised of a single DIP form factor board. The provided supporting software demonstrates the capabilities of the MCP2221 device as a USB-to-UART/I2C/SMBus protocol converter. Additionally, these tools provide simple access for I/O control and the ability to establish custom device configuration. Custom tools can also be created...

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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP2221A-I/P
    0.953300
    1.833333
    14
    PDIP
    .300in
    Matte Tin
    e3
    MCP2221A-I/ST
    0.060000
    0.125000
    14
    TSSOP
    4.4mm
    Matte Tin
    e3
    MCP2221AT-I/ST
    0.060000
    0.246800
    14
    TSSOP
    4.4mm
    Matte Tin
    e3
    MCP2221AT-I/STVAO
    0.060000
    0.246800
    14
    TSSOP
    4.4mm
    Matte Tin
    e3
    MCP2221A-I/SL
    0.143200
    0.280702
    14
    SOIC
    .150In(3.90mm)
    Matte Tin
    e3
    MCP2221AT-I/SL
    0.143200
    0.325000
    14
    SOIC
    .150In(3.90mm)
    Matte Tin
    e3
    MCP2221A-I/ML
    0.041700
    0.076923
    16
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP2221AT-I/ML
    0.041700
    0.212121
    16
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.