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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 (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Type	Interface Type	Mounting Style	Package / Case
I/O Controller Interface IC HID USB to UART Bridge QFN24 CP2110-F01-GM Silicon Labs 1: $7.16 26,035In 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	26,035In Stock	$7.16 $5.46 $5.03 $4.56 View $4.33 $4.20 $4.15 $4.09	Min.: 1 Mult.: 1	I/O Controller Interface IC				SMD/SMT	QFN-24
I/O Controller Interface IC HID USB to UART bridge CP2110-F02-GM1R Silicon Labs 1: $7.37 3,254In 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	3,254In Stock	Cut Tape $7.37 $5.62 $5.17 $4.69 View Reel $4.20 $4.46 $4.32 $4.26 $4.20	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC	HID USB to UART Bridges		UART	SMD/SMT	QFN-28
USB Interface IC USB to UART Bridge QFN28 CP2102-GMR Silicon Labs 1: $13.71 50,457In Stock	Mfr. Part # CP2102-GMR Mouser Part # 634-CP2102-GMR	Silicon Labs	USB Interface IC USB to UART Bridge QFN28 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	50,457In Stock	Cut Tape $13.71 $10.61 $9.82 $9.09 View Reel $7.91 $8.77 $8.67 $8.06 $7.91 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	USB Interface IC	USB Controllers	Bridge, USB to UART	USB, UART	SMD/SMT	QFN-28
USB Interface IC USBXpress - USB to UART Bridge QFN20 CP2102N-A02-GQFN20R Silicon Labs 1: $6.54 34,153In Stock 63,000Expected 2027-01-08	Mfr. Part # CP2102N-A02-GQFN20R Mouser Part # 634-CP2102NA02QFN20R	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN20 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	34,153In Stock 63,000Expected 2027-01-08	Cut Tape $6.54 $4.92 $4.52 $4.09 View Reel $3.53 $3.87 $3.84 $3.61 $3.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-20
I/O Controller Interface IC USB to UART Bridge QFN24 CP2104-F03-GMR Silicon Labs 1: $7.37 19,313In 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	19,313In Stock	Cut Tape $7.37 $5.66 $5.21 $4.74 Reel $4.02 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC	USB to UART Bridges		UART	SMD/SMT	QFN-24
I/O Controller Interface IC USB to Quad UART Bridge QFN64 CP2108-B03-GMR Silicon Labs 1: $18.84 5,637In Stock 32,500Expected 2027-01-15	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	5,637In Stock 32,500Expected 2027-01-15	Cut Tape $18.84 $14.75 $13.72 $12.60 View Reel $10.87 $12.48 $11.75 $11.49 $10.87 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC				SMD/SMT	QFN-64
USB Interface IC HID USB to SMBUS Bridge QFN24 CP2112-F03-GM Silicon Labs 1: $7.19 5,591In Stock 9,555Expected 2027-01-15	Mfr. Part # CP2112-F03-GM Mouser Part # 634-CP2112-F03-GM	Silicon Labs	USB Interface IC HID USB to SMBUS Bridge QFN24 Learn More about Silicon Labs cp2112 hid usb to smbus bridges	Datasheet	5,591In Stock 9,555Expected 2027-01-15	$7.19 $5.47 $5.04 $4.56 View $4.33 $4.20 $4.15 $4.10	Min.: 1 Mult.: 1	USB Interface IC	USB Controllers	Bridge, USB to SMBus	SMBus, USB	SMD/SMT	QFN-24
USB Interface IC USBXpress - USB to UART Bridge QFN20 CP2102N-A02-GQFN20 Silicon Labs 1: $5.70 10,261In Stock 31,420On Order	Mfr. Part # CP2102N-A02-GQFN20 Mouser Part # 634-CP2102NA02GQFN20	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN20 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	10,261In Stock 31,420On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN20 Stock: 10,261 Can Ship Immediately On Order: 11,260 Expected 2026-11-09 20,160 Expected 2027-01-08 Factory Lead-Time: 31 Weeks	$5.70 $5.10 $4.06 $3.87 View $3.79 $3.11 $3.00	Min.: 1 Mult.: 1	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-20
I/O Controller Interface IC USB to UART Bridge QFN28 CP2103-GMR Silicon Labs 1: $17.22 1,190In Stock 8,000On Order	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	1,190In Stock 8,000On Order On Order Ship Dates Mfr. #: CP2103-GMR Stock: 1,190 Can Ship Immediately On Order: 3,000 Expected 2026-12-25 5,000 Expected 2027-01-08 Factory Lead-Time: 29 Weeks	Cut Tape $17.22 $16.66 $12.56 $11.53 View Reel $10.57 $11.42 $11.04 $10.80 $10.57 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC				SMD/SMT	MLP-28
I/O Controller Interface IC USB to UART Bridge QFN24 CP2104-F03-GM Silicon Labs 1: $7.56 1,976In Stock 3,822Expected 2027-01-15	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	1,976In Stock 3,822Expected 2027-01-15	$7.56 $5.76 $5.31 $4.81 View $4.58 $4.44 $4.38 $4.33	Min.: 1 Mult.: 1	I/O Controller Interface IC				SMD/SMT	QFN-24
I/O Controller Interface IC USB to Dual UART Bridge QFN24 CP2105-F01-GM Silicon Labs 1: $7.19 4,510In Stock 9,555Expected 2027-01-15	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	4,510In Stock 9,555Expected 2027-01-15	$7.19 $5.47 $5.04 $4.56 View $4.33 $4.20 $4.15 $4.10	Min.: 1 Mult.: 1	I/O Controller Interface IC				SMD/SMT	QFN-24
I/O Controller Interface IC HID USB to UART bridge CP2110-F01-GMR Silicon Labs 1: $7.36 2,507In Stock 2,500Expected 2027-05-28	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	2,507In Stock 2,500Expected 2027-05-28	Cut Tape $7.36 $5.57 $5.11 $4.49 View Reel $3.89 $4.48 $4.20 $3.89 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC	HID USB to UART Bridges		UART	SMD/SMT	QFN-24
I/O Controller Interface IC HID USB to UART Bridge QFN28 CP2110-F02-GM1 Silicon Labs 1: $7.37 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	$7.37 $5.62 $5.17 $4.69 View $4.46 $4.32 $4.26 $4.20	Min.: 1 Mult.: 1	I/O Controller Interface IC				SMD/SMT	QFN-28
USB Interface IC USBXpress - USB to UART Bridge QFN24 CP2102N-A02-GQFN24 Silicon Labs 1: $7.86 57In Stock 22,932On Order	Mfr. Part # CP2102N-A02-GQFN24 Mouser Part # 634-CP2102NA02GQFN24	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN24 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	57In Stock 22,932On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN24 Stock: 57 Can Ship Immediately On Order: 13,377 Expected 2027-01-01 9,555 Expected 2027-01-08 Factory Lead-Time: 31 Weeks	$7.86 $5.96 $5.00 $4.32	Min.: 1 Mult.: 1	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-24
USB Interface IC USBXpress - USB to UART Bridge QFN24 CP2102N-A02-GQFN24R Silicon Labs 1: $7.86 57In Stock 66,000On Order	Mfr. Part # CP2102N-A02-GQFN24R Mouser Part # 634-CP2102NA02QFN24R	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN24 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	57In Stock 66,000On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN24R Stock: 57 Can Ship Immediately On Order: 27,000 Expected 2027-01-01 39,000 Expected 2027-01-08 Factory Lead-Time: 31 Weeks	Cut Tape $7.86 $5.96 $5.49 $4.00 View Reel $3.54 $3.80 $3.77 $3.54 $3.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-24
I/O Controller Interface IC USB to Dual UART Bridge QFN24 CP2105-F01-GMR Silicon Labs 1: $7.19 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 2027-01-15 21,000 TBD Factory Lead-Time: 26 Weeks	Cut Tape $7.19 $5.47 $5.04 $4.56 View Reel $4.10 $4.33 $4.20 $4.15 $4.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Controller Interface IC	USB to Dual UART Bridges		UART	SMD/SMT	QFN-24
I/O Controller Interface IC USB to Quad UART Bridge QFN64 CP2108-B03-GM Silicon Labs 1: $18.84 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 2027-01-15 3,900 Expected 2027-01-22 Factory Lead-Time: 26 Weeks	$18.84 $14.75 $13.72 $12.60 View $12.48 $11.75 $11.49	Min.: 1 Mult.: 1	I/O Controller Interface IC	I/O Controllers	USB to Quad UART Bridge	Serial	SMD/SMT	QFN-64
USB Interface IC HID USB to SMBUS Bridge QFN24 CP2112-F03-GMR Silicon Labs 1: $7.44 50In Stock 17,500On Order	Mfr. Part # CP2112-F03-GMR Mouser Part # 634-CP2112-F03-GMR	Silicon Labs	USB Interface IC HID USB to SMBUS Bridge QFN24 Learn More about Silicon Labs cp2112 hid usb to smbus bridges	Datasheet	50In Stock 17,500On Order On Order Ship Dates Mfr. #: CP2112-F03-GMR Stock: 50 Can Ship Immediately On Order: 7,500 Expected 2027-01-15 10,000 Expected 2027-05-28 Factory Lead-Time: 26 Weeks	Cut Tape $7.44 $5.62 $5.17 $4.68 View Reel $4.10 $4.44 $4.33 $4.19 $4.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	USB Interface IC	USB Controllers	Bridge, USB to SMBus	SMBus, USB	SMD/SMT	QFN-24
USB Interface IC USB to UART Bridge QFN28 CP2102-GM Silicon Labs 1: $14.07 3,016Expected 2026-12-25	Mfr. Part # CP2102-GM Mouser Part # 634-CP2102-GM	Silicon Labs	USB Interface IC USB to UART Bridge QFN28 Learn More about Silicon Labs silicon cp21xx usb to uart bridges	Datasheet	3,016Expected 2026-12-25	$14.07 $10.94 $10.17 $9.30 View $8.83 $8.65 $8.44	Min.: 1 Mult.: 1	USB Interface IC	USB Controllers	Bridge, USB to UART	USB, UART	SMD/SMT	QFN-28
USB Interface IC USBXpress - USB to UART Bridge QFN28 CP2102N-A02-GQFN28 Silicon Labs 1: $7.72 22,061Expected 2027-01-01	Mfr. Part # CP2102N-A02-GQFN28 Mouser Part # 634-CP2102NA02GQFN28	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN28 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	22,061Expected 2027-01-01	$7.72 $5.86 $5.00 $4.78 View $4.61 $4.49 $4.38 $4.25	Min.: 1 Mult.: 1	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-28
USB Interface IC USBXpress - USB to UART Bridge QFN28 CP2102N-A02-GQFN28R Silicon Labs 1: $5.07 83,000On Order	Mfr. Part # CP2102N-A02-GQFN28R Mouser Part # 634-CP2102NA02QFN28R	Silicon Labs	USB Interface IC USBXpress - USB to UART Bridge QFN28 Learn More about Silicon Labs silabs cp2102n usbxpress usb uart bridge controllers	Datasheet	83,000On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN28R Stock: 0 On Order: 21,500 Expected 2027-01-01 61,500 Expected 2027-01-08 Factory Lead-Time: 31 Weeks	Cut Tape $5.07 $4.75 $4.38 $4.16 View Reel $3.07 $3.92 $3.70 $3.07 $3.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	USB Interface IC	USB Controllers	Bridge, USB to UART	UART	SMD/SMT	QFN-28
I/O Controller Interface IC USB to UART Bridge QFN28 CP2103-GM Silicon Labs 1: $18.23 9,871Expected 2026-11-04	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	9,871Expected 2026-11-04	$18.23 $14.20 $12.79 $12.01 View $11.76 $11.28 $11.03 Quote	Min.: 1 Mult.: 1	I/O Controller Interface IC				SMD/SMT	MLP-28

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