MCP2200-I/SO

Controllers Overview

The MCP2200-I/SO is a USB-to-UART protocol converter with GPIO capabilities, manufactured by Microchip Technology. It operates within a supply voltage range of 3.0V to 5.5V and supports Full-Speed USB (12 Mb/s) compliant with USB 2.0 standards. The device features an integrated 128-byte buffer (64-byte transmit, 64-byte receive) and 256 bytes of user EEPROM. It includes eight general-purpose I/O pins, hardware flow control via RTS/CTS, and supports baud rates from 300 to 1000k. Operating temperature ranges from -40°C to +85°C. The component is housed in a 20-lead SOIC package.

Controllers Feature Summary

• Implements a composite USB device utilizing Communication Device Class (CDC) for data translation and Human Interface Device (HID) for configuration and I/O control.
• Integrates an internal Low Dropout (LDO) regulator for the USB transceiver, reducing external component requirements while supporting bus-powered or self-powered configurations.
• Provides configurable general-purpose input/output pins that can function as standard I/O or indicate specific USB states such as suspend status, configuration completion, and traffic activity.
• Supports dynamic UART parameter adjustment through SET_LINE_CODING commands, allowing baud rate changes without resetting the connection.

Controllers Applications

• Enabling USB connectivity for legacy applications requiring a UART interface
• Converting USB ports to virtual COM ports on Windows operating systems
• Industrial automation systems requiring robust serial communication interfaces

Controllers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the MCP2200 family includes VQFN and SSOP variants alongside the SOIC. Confirm that the industrial temperature grade (-I) aligns with environmental requirements. Ensure compatibility with the intended host operating system versions supported by the standard drivers.

Controllers Selection Notes

Select this component when a cost-effective solution for USB-to-UART conversion is needed without complex driver development. The integrated GPIO and EEPROM reduce bill of materials count. Consider the 20-lead SOIC package for ease of prototyping and manual assembly compared to smaller footprint options.

Controllers Part Context

The MCP2200-I/SO belongs to the MCP2200 series of USB-to-UART converters. This series is designed to simplify integration of USB functionality into embedded designs. The 'I' suffix denotes the industrial temperature rating, while 'SO' specifies the 20-lead Small Outline Integrated Circuit package format.

Controllers Replacement Considerations

Direct pin-compatible alternatives within the same package include other MCP2200 variants such as MCP2200T-I/SO or MCP2200-I/SS. Cross-vendor replacements like FTDI chips may require schematic and software modifications due to differing pinouts and driver architectures.

Controllers FAQ

How does the MCP2200 handle USB enumeration?

The device enumerates as a composite device, appearing simultaneously as a Virtual Com Port (VCP) for data communication and a Human Interface Device (HID) for configuration and I/O control.

What is the default UART configuration upon power-up?

The default startup configuration is 19200 baud, 8 data bits, no parity, and 1 stop bit (8N1).

Can the VID and PID be customized?

Yes, the Vendor ID and Product ID are fully configurable via the HID interface using the provided configuration utility or custom DLL, allowing the device to appear as a specific product to the host.