Microchip MCP2200-I/SS: A Compact USB-to-UART Serial Bridge Controller

The Microchip MCP2200-I/SS is a highly integrated USB-to-UART serial converter designed to facilitate seamless communication between a host computer and embedded systems. Housed in a compact SSOP-20 package, this device offers a robust and cost-effective solution for adding USB connectivity to applications that traditionally rely on UART interfaces. By translating USB signals to UART serial data, the MCP2200 enables microcontrollers without native USB support to communicate effortlessly with PCs and other USB hosts.

One of the standout features of the MCP2200 is its built-in USB 2.0 full-speed compliant interface, which supports data transfer rates up to 12 Mbps. This ensures reliable and high-speed data exchange, making it suitable for a wide range of applications, including industrial automation, consumer electronics, and prototyping. The device requires minimal external components—only a crystal and passive elements—to operate, simplifying design and reducing both board space and overall system cost.

The MCP2200 is pre-programmed with a standard USB Vendor ID (VID) and Product ID (PID), allowing it to be recognized by major operating systems without the need for custom drivers. When connected, it enumerates as a CDC (Communications Device Class) device, enabling it to appear as a virtual COM port on the host computer. This plug-and-play functionality streamlines development and integration, as most systems automatically install the necessary drivers.

Beyond its core UART bridging capability, the MCP2200 provides eight general-purpose I/O (GPIO) pins that can be configured for various functions, such as status indicators, control signals, or custom user interfaces. These GPIOs enhance the device’s versatility, allowing designers to implement additional features without requiring extra components. The UART interface includes hardware flow control signals (RTS and CTS), ensuring reliable data transfer in demanding environments.

The MCP2200-I/SS operates at voltages from 3.0V to 5.5V, making it compatible with both 3.3V and 5V systems. Its low-power consumption and industrial temperature range (-40°C to +85°C) further extend its suitability for rugged and power-sensitive applications. With its combination of ease of use, compact form factor, and robust performance, the MCP2200 is an excellent choice for engineers seeking to modernize legacy systems or develop new USB-enabled products.

ICGOODFIND: The MCP2200-I/SS stands out for its simplicity, reliability, and integration, offering a turnkey solution for USB-to-serial conversion with the added benefit of configurable GPIOs.

Keywords:

USB-to-UART Converter

CDC Class Device

General-Purpose I/O (GPIO)

Virtual COM Port

SSOP-20 Package