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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 (JPY) 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: ¥657.8 11,659In Stock 12,600Expected 10/9/2026	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	11,659In Stock 12,600Expected 10/9/2026	¥657.8 ¥588 ¥468.4 ¥446.8 View ¥436.8 ¥358.8 ¥345.5	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: ¥622.9 39,279In Stock 63,000Expected 1/8/2027	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 1/8/2027	Cut Tape ¥622.9 ¥619.6 ¥599.6 ¥538.2 Reel ¥348.8 View ¥491.7 ¥458.4 ¥403.6 ¥345.5 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 QFN24 CP2102N-A02-GQFN24 Silicon Labs 1: ¥855.4 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 1/1/2027 9,555 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	¥855.4 ¥649.5 ¥544.8 ¥523.2 View ¥511.6 ¥495 ¥483.4	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 QFN24 CP2102N-A02-GQFN24R Silicon Labs 1: ¥906.9 61In 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	61In Stock 66,000On Order On Order Ship Dates Mfr. #: CP2102N-A02-GQFN24R Stock: 61 Can Ship Immediately On Order: 27,000 Expected 1/1/2027 39,000 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	Cut Tape ¥906.9 ¥687.7 ¥632.8 ¥573 View Reel ¥400.3 ¥544.8 ¥528.2 ¥400.3 ¥400.3 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 QFN28 CP2102N-A02-GQFN28 Silicon Labs 1: ¥943.4 58In Stock 22,995Expected 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	58In Stock 22,995Expected 1/1/2027	¥943.4 ¥717.6 ¥609.6 ¥584.7 View ¥564.7 ¥519.9	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 QFN28 CP2102N-A02-GQFN28R Silicon Labs 1: ¥584.7 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 1/1/2027 61,500 Expected 1/8/2027 Factory Lead-Time: 31 Weeks	Cut Tape ¥584.7 ¥548.1 ¥504.9 ¥480 View Reel ¥353.8 ¥451.8 ¥426.9 ¥353.8 ¥353.8 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