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MCP2221A - UART Protocol Converter

General Description

The MCP2221A is a USB-to-UART serial converter that enables USB connectivity in applications that have UART and/or I2C interfaces.

The device reduces external components by integrating the USB termination resistors and the oscillator needed for USB operation.

Key Features

  • Universal Serial Bus (USB).
  • Supports Full-Speed USB (12 Mb/s).
  • Implements USB Protocol Composite Device: - Communication Device Class (CDC) for USB-to-UART conversion - Human Interface Device (HID) for I2C device control and configuration.
  • 448-Byte Buffer to Handle Data Throughput at Any Supported UART Baud Rate: - 64-byte transmit - 384-byte receive.
  • Human Interface Device (HID) for Both I2C Communication and Control: 64-byte buffer to handle data throughput.

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Full PDF Text Transcription for MCP2221A (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for MCP2221A. For precise diagrams, and layout, please refer to the original PDF.

MCP2221A USB 2.0 to I2C/UART Protocol Converter with GPIO Note: The MCP2221A is identical to the MCP2221 in all aspects except for the maximum supported baud rate of the ...

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2221 in all aspects except for the maximum supported baud rate of the UART, which has been increased from 115200 (MCP2221) to 460800 (MCP2221A).