USB Interface IC – Mouser Japan

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	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
USB Interface IC USB to I2C Bridge Device MCP2221-I/P Microchip Technology 1: ¥586.3 510In Stock	Mfr. Part # MCP2221-I/P Mouser Part # 579-MCP2221-I/P	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	510In Stock	¥586.3 ¥491.7 ¥483.4 ¥446.8 View ¥443.5 ¥441.8	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221A-I/ST Microchip Technology 1: ¥465.1 6,727In Stock	Mfr. Part # MCP2221A-I/ST Mouser Part # 579-MCP2221A-I/ST	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	6,727In Stock	¥465.1 ¥387 ¥353.8	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221AT-I/ST Microchip Technology 1: ¥465.1 6,778In Stock	Mfr. Part # MCP2221AT-I/ST Mouser Part # 579-MCP2221AT-I/ST	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	6,778In Stock	Cut Tape ¥465.1 ¥392 Reel ¥353.8 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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC USB to I2C Bridge Device MCP2221T-I/ST Microchip Technology 1: ¥523.2 3,108In Stock	Mfr. Part # MCP2221T-I/ST Mouser Part # 579-MCP2221T-I/ST	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	3,108In Stock	Cut Tape ¥523.2 ¥435.2 ¥433.5 Reel ¥403.6 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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC USB to I2C Bridge Device MCP2221-I/ML Microchip Technology 1: ¥523.2 1,705In Stock	Mfr. Part # MCP2221-I/ML Mouser Part # 579-MCP2221-I/ML	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	1,705In Stock	¥523.2 ¥435.2 ¥395.3	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C/UART Protocol Converter with GPIO, AEC-Q100 Qualified MCP2221A-I/ML Microchip Technology 1: ¥465.1 1,669In Stock 3,731Expected 1/21/2027	Mfr. Part # MCP2221A-I/ML Mouser Part # 579-MCP2221A-I/ML	Microchip Technology	USB Interface IC USB 2.0 to I2C/UART Protocol Converter with GPIO, AEC-Q100 Qualified Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	1,669In Stock 3,731Expected 1/21/2027	¥465.1 ¥387 ¥353.8	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221A-I/P Microchip Technology 1: ¥531.5 642In Stock	Mfr. Part # MCP2221A-I/P Mouser Part # 579-MCP2221A-I/P	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	642In Stock	¥531.5 ¥443.5 ¥402	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221A-I/SL Microchip Technology 1: ¥420.2 5,690In Stock	Mfr. Part # MCP2221A-I/SL Mouser Part # 579-MCP2221A-I/SL	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	5,690In Stock	¥420.2 ¥353.8 ¥320.6	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221AT-I/ML Microchip Technology 1: ¥465.1 3,652In Stock 9,900On Order	Mfr. Part # MCP2221AT-I/ML Mouser Part # 579-MCP2221AT-I/ML	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	3,652In Stock 9,900On Order On Order Ship Dates Mfr. #: MCP2221AT-I/ML Stock: 3,652 Can Ship Immediately On Order: 3,300 Expected 10/26/2026 6,600 Expected 1/1/2027 Factory Lead-Time: 22 Weeks	Cut Tape ¥465.1 ¥392 Reel ¥353.8 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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC USB to I2C Bridge Device MCP2221-I/SL Microchip Technology 1: ¥480 285In Stock	Mfr. Part # MCP2221-I/SL Mouser Part # 579-MCP2221-I/SL	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	285In Stock	¥480 ¥400.3 ¥362.1	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB to I2C Bridge Device MCP2221-I/ST Microchip Technology 1: ¥523.2 346In Stock	Mfr. Part # MCP2221-I/ST Mouser Part # 579-MCP2221-I/ST	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	346In Stock	¥523.2 ¥435.2 ¥395.3	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Tube
USB Interface IC USB 2.0 to I2C Converter with GPIO MCP2221AT-I/SL Microchip Technology 1: ¥420.2 378In Stock 7,800On Order	Mfr. Part # MCP2221AT-I/SL Mouser Part # 579-MCP2221AT-I/SL	Microchip Technology	USB Interface IC USB 2.0 to I2C Converter with GPIO Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	378In Stock 7,800On Order On Order Ship Dates Mfr. #: MCP2221AT-I/SL Stock: 378 Can Ship Immediately On Order: 2,600 Expected 12/28/2026 5,200 Expected 1/18/2027 Factory Lead-Time: 21 Weeks	Cut Tape ¥420.2 ¥353.8 Reel ¥320.6 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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC USB to I2C Bridge Device MCP2221T-I/ML Microchip Technology 3,300: ¥395.3 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # MCP2221T-I/ML Mouser Part # 579-MCP2221T-I/ML	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	Non-Stocked Lead-Time 22 Weeks	Reel ¥395.3	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel
USB Interface IC USB to I2C Bridge Device MCP2221T-I/SL Microchip Technology 2,600: ¥362.1 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # MCP2221T-I/SL Mouser Part # 579-MCP2221T-I/SL	Microchip Technology	USB Interface IC USB to I2C Bridge Device Learn More about Microchip Technology microchip mcp2221 converter	Datasheet	Non-Stocked Lead-Time 21 Weeks	Reel ¥362.1	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,kb	3 V	5.5 V	13 mA	- 40 C	+ 85 C	Reel