MCP2221 USB-to-UART/I²C Converter

Microchip Technology MCP2221 USB-to-UART/I²C Converter supports full-speed USB at 12Mb/s and enables USB connectivity in applications with UART and I2C interfaces. The MCP2221 converter integrates USB termination resistors and the oscillator needed for USB operation. This converter comes with four GP pins that provide miscellaneous functionalities. These functionalities include GPIO, USBCFG, SSPND, Clock Output, ADC, DAC, interrupt detector.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Type
Mounting Style
Package / Case
Standard
Speed
Data Rate
Supply Voltage - Min
Supply Voltage - Max
Operating Supply Current
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
507In Stock
Min.: 1
Mult.: 1

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT TSSOP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
8,376In Stock
Min.: 1
Mult.: 1

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT TSSOP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
9,257In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT TSSOP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
1,137In Stock
2,500Expected 2026-08-04
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT TSSOP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
1,713In Stock
Min.: 1
Mult.: 1

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
534In Stock
Min.: 1
Mult.: 1

MCP2221 USB Controllers Bridge, USB to UART/I2C Through Hole PDIP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB 2.0 to I2C/UART Protocol Converter with GPIO, AEC-Q100 Qualified
Datasheet
4,621In Stock
Min.: 1
Mult.: 1

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube

Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
880In Stock
Min.: 1
Mult.: 1

MCP2221A USB Controllers Bridge, USB to UART/I2C Through Hole PDIP-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube

Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
3,095In Stock
4,047Expected 2026-08-31
Min.: 1
Mult.: 1

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT SOIC-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
2,294In Stock
6,600Expected 2026-10-26
MouseReel Available
Min.: 1
Mult.: 1
: 3,300

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel, Cut Tape, MouseReel

Microchip Technology USB Interface IC USB 2.0 to I2C Converter with GPIO
Datasheet
944In Stock
2,600Expected 2026-08-20
MouseReel Available
Min.: 1
Mult.: 1
: 2,600

MCP2221A USB Controllers Bridge, USB to UART/I2C SMD/SMT SOIC-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel, Cut Tape, MouseReel

Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
323In Stock
Min.: 1
Mult.: 1

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT SOIC-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Tube
Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 3,300
Mult.: 3,300
: 3,300

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel

Microchip Technology USB Interface IC USB to I2C Bridge Device
Datasheet
Non-Stocked Lead-Time 21 Weeks
Min.: 2,600
Mult.: 2,600
: 2,600

MCP2221 USB Controllers Bridge, USB to UART/I2C SMD/SMT SOIC-14 USB 2.0 Full Speed (FS) 12 Mb/s 3 V 5.5 V 13 mA - 40 C + 85 C Reel