MCP2221-I/ML

Controllers Overview

The MCP2221-I/ML is a USB-to-UART/I2C protocol converter with GPIO capabilities, manufactured by Microchip Technology. It supports Full-Speed USB (12 Mb/s) and operates within a voltage range of 3.0V to 5.5V. The device integrates a USB transceiver, internal oscillator, and termination resistors. It features four general-purpose I/O pins, three ADC inputs, one DAC output, and an external interrupt detector. The component is housed in a QFN-16 package and is rated for industrial operating temperatures from -40°C to +85°C.

Controllers Feature Summary

• Implements a composite USB device utilizing Communication Device Class (CDC) for UART conversion and Human Interface Device (HID) for I2C control and configuration.
• Includes a bus-matrix module that manages data transfers between the USB interface, UART, I2C master, and auxiliary functions like GPIO and ADC/DAC.
• Features configurable General-Purpose Input/Output pins that can be assigned to alternate functions such as clock reference output, LED activity indicators, or interrupt detection.

Controllers Applications

• USB-to-UART serial communication bridges
• I2C/SMBus master controllers for peripheral access
• Low-speed device controllers and debugging tools

Controllers Procurement Notes

Verify the specific ordering suffix '-I/ML' corresponds to the Industrial temperature grade (-40°C to +85°C) and the QFN-16 package type. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before finalizing procurement specifications.

Controllers Selection Notes

Select this component when a compact solution is required to bridge USB connectivity to UART or I2C interfaces without external oscillators or termination components. Ensure the application requires Full-Speed USB performance and fits within the specified 3.0V to 5.5V operating voltage range.

Controllers Part Context

This part belongs to the MCP2221 series of USB interface integrated circuits. It serves as a bridge between host systems and devices requiring UART or I2C protocols. The 'I' designation indicates industrial temperature rating, while '/ML' specifies the QFN-16 surface-mount package variant.

Controllers Replacement Considerations

Check for other variants within the MCP2221 family, such as those with different package options (SOIC, TSSOP, PDIP) or commercial temperature grades, if physical footprint or environmental constraints differ.