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CP2102N USBXpress™ USB-to-UART Bridge Controller

Silicon Labs CP2102N USBXpress™ USB-to-UART Bridge Controller updates RS-232 designs to USB using minimum components and PCB space. The CP2102N includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, and Universal Asynchronous Receiver/Transmitter (UART). The Controller is housed in packages as small as 3mm x 3mm. No other external USB components are required.

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Select	Image	Part #	Mfr.	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
	USB Interface IC USBXpress - USB to UART Bridge QFN20 CP2102N-A02-GQFN20 Silicon Labs 1: $5.70 11,664In Stock 12,600Expected 2026-10-09	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	11,664In Stock 12,600Expected 2026-10-09	$5.70 $5.10 $4.06 $3.87 View $3.79 $3.11 $3.00	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-20	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Tube
	USB Interface IC USBXpress - USB to UART Bridge QFN20 CP2102N-A02-GQFN20R Silicon Labs 1: $5.40 39,279In 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	39,279In Stock 63,000Expected 2027-01-08	Cut Tape $5.40 $5.37 $5.20 $4.67 Reel $3.02 View $4.26 $3.97 $3.50 $3.00 MouseReel Available	Min.: 1 Mult.: 1 : 1,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-20	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
	USB Interface IC USBXpress - USB to UART Bridge QFN28 CP2102N-A02-GQFN28 Silicon Labs 1: $8.18 665In Stock 22,995Expected 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	665In Stock 22,995Expected 2027-01-01	$8.18 $6.22 $5.28 $5.07 View $4.90 $4.51	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Tube
	USB Interface IC USBXpress - USB to UART Bridge QFN24 CP2102N-A02-GQFN24R Silicon Labs 1: $7.86 3,823In 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	3,823In Stock 66,000On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN24R Stock: 3,823 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 $4.97 View Reel $3.47 $4.72 $4.58 $3.47 $3.47 MouseReel Available	Min.: 1 Mult.: 1 : 1,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-24	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
	USB Interface IC USBXpress - USB to UART Bridge QFN24 CP2102N-A02-GQFN24 Silicon Labs 1: $7.42 379In 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	379In Stock 22,932On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN24 Stock: 379 Can Ship Immediately On Order: 13,377 Expected 2027-01-01 9,555 Expected 2027-01-08 Factory Lead-Time: 31 Weeks	$7.42 $5.63 $4.72 $4.54 View $4.44 $4.29 $4.19	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-24	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Tube
	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 : 1,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	3 Mb/s,kb	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel