Microchip Technology MCP2221A-I/ML, USB Controller, 12Mbit/s, 16-Pin QFN

  • RS Stock No. 177-1620
  • Mfr. Part No. MCP2221A-I/ML
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): US
Product Details

The MCP2221 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 MCP2221 also has four GP pins providing miscellaneous functionalities (GPIO, USBCFG, SSPND, Clock Output, ADC, DAC, interrupt detector).

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

Attribute Value
Number of Transceivers 1
Data Rate 12Mbit/s
Protocols Supported I2C, UART
Power Supply Type Single
ESD Protection Yes
Mounting Type Surface Mount
Package Type QFN
Pin Count 16
Dimensions 4 x 4 x 0.95mm
Height 0.95mm
Length 4mm
Maximum Operating Temperature +85 °C
Width 4mm
Automotive Standard AEC-Q100
Minimum Operating Temperature -40 °C
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