Microchip Technology Inc
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MCP2221A

USB 2.0 to I^2C/UART Protocol Converter with GPIO

Status: In Production

Features:

  • Supports full-speed USB (12 Mb/s)
  • Communication Device Class (CDC) for communications and configuration
  • Human Interface Device (HID) for I2C™, chip control and configuration
  • 64-byte Transmit
  • 64-byte Receive
  • 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
  • 4 kV Human Body Model (HBM)
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

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.

Additional 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

     

Parametrics
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

Documents

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aspxDeviceInfo

04/08/2016
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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP2221 I2C Demo Board
MCP2221 I2C Demo Board ( ADM00678 )

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.

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Add To Cart
MCP2221 Breakout Module
MCP2221 Breakout Module ( ADM00559 )

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...

Learn More
Add To Cart
MCP1663 USB Programmable SEPIC Ref Design
MCP1663 USB Programmable SEPIC Ref Design ( ARD00698 )

The MCP1663 USB programmable power supply reference design was developed to provide a versatile and easy to use solution for engineers. It easily transforms a typical computer’s USB port into a variable output power supply capable of supplying 2.5V to 30V.

Learn More
Add To Cart

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
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.

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