I/O Controller Interface IC

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CP21xx Smart Interface ICs

Silicon Labs CP21xx Smart Interface ICs leverage Silicon Labs' world-class mixed-signal design expertise to provide a family of high-performance interface devices that enable designers to differentiate their products and speed time-to-market. These mixed-signal IC products span different technologies and standards to enable quick and effective communication between two devices or functionalities. These devices include USB to UART bridges, ISB to I²S digital audio bridges, HID USB to SMBus/I²C bridges, and SPI to I²C bridge with GPIO port expanders, and USB to SPI bridges.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Series	Product	Interface Type	Number of I/Os	Supply Voltage - Max	Supply Voltage - Min	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
I/O Controller Interface IC HID USB to UART Bridge QFN24 CP2110-F01-GM Silicon Labs 1: $5.662 25.981In Stock	Mfr. Part # CP2110-F01-GM Mouser Part # 634-CP2110-F01-GM	Silicon Labs	I/O Controller Interface IC HID USB to UART Bridge QFN24 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	25.981In Stock	$5.662 $4.318 $3.976 $3.612 View $3.429 $3.327 $3.281 $3.236	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CP2110				3.3 V	3.3 V	- 40 C	+ 85 C	Tube
I/O Controller Interface IC HID USB to UART bridge CP2110-F02-GM1R Silicon Labs 1: $5.833 3.289In Stock	Mfr. Part # CP2110-F02-GM1R Mouser Part # 634-CP2110-F02-GM1R	Silicon Labs	I/O Controller Interface IC HID USB to UART bridge Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	3.289In Stock	Cut Tape $5.833 $4.443 $4.090 $3.714 View Reel $3.327 $3.532 $3.418 $3.372 $3.327	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-28	CP2110	HID USB to UART Bridges	UART	10 I/O	3.6 V	3 V	- 40 C	+ 85 C	Reel, Cut Tape
I/O Controller Interface IC USB to UART Bridge QFN28 CP2103-GMR Silicon Labs 1: $13.626 2.295In Stock 3.000Expected 12/25/2026	Mfr. Part # CP2103-GMR Mouser Part # 634-CP2103-GMR	Silicon Labs	I/O Controller Interface IC USB to UART Bridge QFN28 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	2.295In Stock 3.000Expected 12/25/2026	Cut Tape $13.626 $13.181 $9.934 $9.126 View Reel $8.362 $9.034 $8.738 $8.545 $8.362 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	MLP-28	CP2103				3.6 V	3.6 V	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
I/O Controller Interface IC USB to UART Bridge QFN24 CP2104-F03-GMR Silicon Labs 1: $5.833 19.413In Stock	Mfr. Part # CP2104-F03-GMR Mouser Part # 634-CP2104-F03-GMR	Silicon Labs	I/O Controller Interface IC USB to UART Bridge QFN24 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	19.413In Stock	Cut Tape $5.833 $4.477 $4.124 $3.748 Reel $3.179 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-24	CP2104	USB to UART Bridges	UART	4 I/O	3.6 V	3 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
I/O Controller Interface IC USB to Quad UART Bridge QFN64 CP2108-B03-GMR Silicon Labs 1: $14.902 9.342In Stock 32.500Expected 1/15/2027	Mfr. Part # CP2108-B03-GMR Mouser Part # 634-CP2108-B03-GMR	Silicon Labs	I/O Controller Interface IC USB to Quad UART Bridge QFN64 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	9.342In Stock 32.500Expected 1/15/2027	Cut Tape $14.902 $11.666 $10.857 $9.969 View Reel $8.602 $9.878 $9.296 $9.091 $8.602 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-64	CP2108								Reel, Cut Tape, MouseReel
I/O Controller Interface IC USB to UART Bridge QFN24 CP2104-F03-GM Silicon Labs 1: $5.981 2.001In Stock 3.822Expected 2/19/2027	Mfr. Part # CP2104-F03-GM Mouser Part # 634-CP2104-F03-GM	Silicon Labs	I/O Controller Interface IC USB to UART Bridge QFN24 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	2.001In Stock 3.822Expected 2/19/2027	$5.981 $4.557 $4.204 $3.805 View $3.623 $3.509 $3.463 $3.429	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CP2104				3.3 V	3.3 V	- 40 C	+ 85 C	Tube
I/O Controller Interface IC USB to Dual UART Bridge QFN24 CP2105-F01-GM Silicon Labs 1: $5.685 4.810In Stock 9.555Expected 2/19/2027	Mfr. Part # CP2105-F01-GM Mouser Part # 634-CP2105-F01-GM	Silicon Labs	I/O Controller Interface IC USB to Dual UART Bridge QFN24 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	4.810In Stock 9.555Expected 2/19/2027	$5.685 $4.329 $3.987 $3.612 View $3.429 $3.327 $3.281 $3.247	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CP2105				3.3 V	3.3 V	- 40 C	+ 85 C	Tube
I/O Controller Interface IC USB to Quad UART Bridge QFN64 CP2108-B03-GM Silicon Labs 1: $14.902 18In Stock 7.800On Order	Mfr. Part # CP2108-B03-GM Mouser Part # 634-CP2108-B03-GM	Silicon Labs	I/O Controller Interface IC USB to Quad UART Bridge QFN64 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	18In Stock 7.800On Order On Order Ship Dates Mfr. #: CP2108-B03-GM Stock: 18 Can Ship Immediately On Order: 3.900 Expected 1/15/2027 3.900 Expected 1/22/2027 Factory Lead-Time: 26 Weeks	$14.902 $11.666 $10.857 $9.969 View $9.878 $9.296 $9.091	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	CP2108	I/O Controllers	Serial		3.6 V	3 V	- 40 C	+ 85 C	Tray
I/O Controller Interface IC HID USB to UART bridge CP2110-F01-GMR Silicon Labs 1: $5.662 1.644In Stock 2.500Expected 4/16/2027	Mfr. Part # CP2110-F01-GMR Mouser Part # 634-CP2110-F01-GMR	Silicon Labs	I/O Controller Interface IC HID USB to UART bridge Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	1.644In Stock 2.500Expected 4/16/2027	Cut Tape $5.662 $4.318 $3.976 $3.612 $3.543 Reel $2.996 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-24	CP2110	HID USB to UART Bridges	UART	10 I/O	3.6 V	3 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
I/O Controller Interface IC HID USB to UART Bridge QFN28 CP2110-F02-GM1 Silicon Labs 1: $5.833 642In Stock	Mfr. Part # CP2110-F02-GM1 Mouser Part # 634-CP2110-F02-GM1	Silicon Labs	I/O Controller Interface IC HID USB to UART Bridge QFN28 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	642In Stock	$5.833 $4.443 $4.090 $3.714 View $3.532 $3.418 $3.372 $3.327	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	CP2110				3.6 V	3 V	- 40 C	+ 85 C	Tube
I/O Controller Interface IC USB to Dual UART Bridge QFN24 CP2105-F01-GMR Silicon Labs 1: $5.685 50In Stock 48.500On Order	Mfr. Part # CP2105-F01-GMR Mouser Part # 634-CP2105-F01-GMR	Silicon Labs	I/O Controller Interface IC USB to Dual UART Bridge QFN24 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	50In Stock 48.500On Order On Order Ship Dates Mfr. #: CP2105-F01-GMR Stock: 50 Can Ship Immediately On Order: 27.500 Expected 2/19/2027 21.000 TBD Factory Lead-Time: 26 Weeks	Cut Tape $5.685 $4.329 $3.987 $3.612 View Reel $3.247 $3.429 $3.327 $3.281 $3.247 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-24	CP2105	USB to Dual UART Bridges	UART	5 I/O	3.6 V	3 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
I/O Controller Interface IC USB to UART Bridge QFN28 CP2103-GM Silicon Labs 1: $14.423 10.114Expected 10/21/2026	Mfr. Part # CP2103-GM Mouser Part # 634-CP2103-GM	Silicon Labs	I/O Controller Interface IC USB to UART Bridge QFN28 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	10.114Expected 10/21/2026	$14.423 $11.233 $10.117 $9.502 View $9.308 $8.921 $8.727 Quote	Min.: 1 Mult.: 1	SMD/SMT	MLP-28	CP2103				3.6 V	3.6 V	- 55 C	+ 125 C	Tube

CP21xx Smart Interface ICs

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