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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 (KRW) 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: ₩5,580.4 10,126In 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	10,126In Stock 31,420On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN20 Stock: 10,126 Can Ship Immediately On Order: 11,260 Expected 11/9/2026 20,160 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	₩5,580.4 ₩4,988.6 ₩3,973.9 ₩3,790.7 View ₩3,706.2 ₩3,043.9 ₩2,931.1	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-20	USB 2.0	Full Speed (FS)	3 Mb/s	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: ₩6,397.8 34,041In Stock 63,000Expected 12/4/2026	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	34,041In Stock 63,000Expected 12/4/2026	Cut Tape ₩6,397.8 ₩4,819.5 ₩4,424.9 ₩4,002.1 View Reel ₩3,452.5 ₩3,790.7 ₩3,762.6 ₩3,537.1 ₩3,452.5 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-20	USB 2.0	Full Speed (FS)	3 Mb/s	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: ₩7,412.4 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 1/1/2027 9,555 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	₩7,412.4 ₩5,622.7 ₩4,706.7 ₩4,439 View ₩4,340.3 ₩4,199.4 ₩4,100.8 ₩3,988	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-24	USB 2.0	Full Speed (FS)	3 Mb/s	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: ₩7,694.2 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 1/1/2027 39,000 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	Cut Tape ₩7,694.2 ₩5,834.1 ₩5,369.1 ₩3,917.6 View Reel ₩3,466.6 ₩3,720.3 ₩3,692.1 ₩3,466.6 ₩3,466.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-24	USB 2.0	Full Speed (FS)	3 Mb/s	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: ₩7,553.3 22,061Expected 1/1/2027	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 1/1/2027	₩7,553.3 ₩5,735.4 ₩4,889.9 ₩4,678.5 View ₩4,509.4 ₩4,396.7 ₩4,284 ₩4,157.1	Min.: 1 Mult.: 1			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	3 Mb/s	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: ₩4,960.4 83,320On 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	83,320On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN28R Stock: 0 On Order: 21,820 Expected 1/1/2027 61,500 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	Cut Tape ₩4,960.4 ₩4,650.4 ₩4,284 ₩4,072.6 View Reel ₩3,001.6 ₩3,833 ₩3,621.6 ₩3,001.6 ₩3,001.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			CP2102N	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	3 Mb/s	3 V	3.6 V	13.7 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel