USB Interface IC – Mouser Peru

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XR21x14x Universal Async Receiver Transmitters

MaxLinear XR21x14x Universal Asynchronous Receiver Transmitters with USB 2.0 compliant bus interface are part of a fast UART series. The USB interface on the MaxLinear XR21x14x supports a 12Mbps USB data transfer rate, USB suspend, resume, and remote wakeup operations. These MaxLinear UARTs operate from an internal 48MHz clock, require no external crystal/oscillator, and can accurately generate any baud rate using the internal clock. The UART series includes an automatic transceiver direction control feature that simplifies the hardware for RS-485 applications. The XR21x14x UART is ideal for portable appliances, external converters (dongles), and battery-operated devices.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	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 2 CH FS USB UART= 512 Byte TX/RX FIFOs XR21B1422IL40-F MaxLinear 1: S/27.33 1,293In Stock	Mfr. Part # XR21B1422IL40-F Mouser Part # 701-21B1422IL40F	MaxLinear	USB Interface IC 2 CH FS USB UART= 512 Byte TX/RX FIFOs Learn More about MaxLinear exaruart	Datasheet	1,293In Stock	S/27.33 S/20.94 S/19.35 S/17.59 View S/16.43 S/16.15 S/15.88 S/15.84 Quote	Min.: 1 Mult.: 1	XR21B1422	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-40	USB 2.0	Full Speed (FS)	12 Mb/s,kb	3 V, 4.4 V	3.6 V, 5.25 V	15 mA	- 40 C	+ 85 C	Tray
USB Interface IC 1 Chan FS USB UART w/ 256 Byte FIFO XR21V1410IL16TR-F MaxLinear 1: S/17.71 18,512In Stock	Mfr. Part # XR21V1410IL16TR-F Mouser Part # 701-XR21V1410IL16TRF	MaxLinear	USB Interface IC 1 Chan FS USB UART w/ 256 Byte FIFO Learn More about MaxLinear xr21v14x uart	Datasheet	18,512In Stock	Cut Tape S/17.71 S/13.35 S/12.26 S/11.09 S/10.70 Reel S/10.70 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	XR21V1410	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-16	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	20 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC 1 CH FS USB UART 512 Byte TX/RX FIFOs XR21B1420IL28-F MaxLinear 1: S/26.00 753In Stock	Mfr. Part # XR21B1420IL28-F Mouser Part # 701-21B1420IL28F	MaxLinear	USB Interface IC 1 CH FS USB UART 512 Byte TX/RX FIFOs Learn More about MaxLinear exaruart	Datasheet	753In Stock	S/26.00 S/19.93 S/18.41 S/16.74 View S/15.96 S/15.49 S/15.30 S/15.10	Min.: 1 Mult.: 1	XR21B1420	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	12 Mb/s,kb	3 V, 4.4 V	3.6 V, 5.25 V	15 mA	- 40 C	+ 85 C	Tray
USB Interface IC 1-Ch 12Mbps 48MHz Internal clock; UART XR21V1410IL16-F MaxLinear 1: S/17.40 944In Stock 1,470Expected 10/15/2026	Mfr. Part # XR21V1410IL16-F Mouser Part # 701-XR21V1410IL16-F	MaxLinear	USB Interface IC 1-Ch 12Mbps 48MHz Internal clock; UART Learn More about MaxLinear xr21v14x uart	Datasheet	944In Stock 1,470Expected 10/15/2026	S/17.40 S/13.20 S/12.14 S/11.02 View S/10.12 S/9.81 S/9.69 S/9.42	Min.: 1 Mult.: 1	XR21V1410	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-16	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	20 mA	- 40 C	+ 85 C	Tray
USB Interface IC 1Ch FS USB UART128B TX & 384B RX FIFO XR21B1411IL16TR-F MaxLinear 1: S/20.98 45In Stock 6,000On Order	Mfr. Part # XR21B1411IL16TR-F Mouser Part # 701-XR21B1411IL16TRF	MaxLinear	USB Interface IC 1Ch FS USB UART128B TX & 384B RX FIFO Learn More about MaxLinear xr21b1411 uart	Datasheet	45In Stock 6,000On Order On Order Ship Dates Mfr. #: XR21B1411IL16TR-F Stock: 45 Can Ship Immediately On Order: 3,000 Expected 1/26/2027 3,000 Expected 2/2/2027 Factory Lead-Time: 26 Weeks	Cut Tape S/20.98 S/15.96 S/14.71 S/13.35 View Reel S/12.53 S/12.69 S/12.57 S/12.53 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	XR21B1411	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-16	USB 2.0	Full Speed (FS)	12 Mb/s,kb	4.4 V	5.25 V	11 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC 2-Ch 12Mbps 48MHz Internal clock; UART XR21V1412IL32-F MaxLinear 1: S/31.49 195In Stock 1,470On Order	Mfr. Part # XR21V1412IL32-F Mouser Part # 701-XR21V1412IL32-F	MaxLinear	USB Interface IC 2-Ch 12Mbps 48MHz Internal clock; UART Learn More about MaxLinear xr21v14x uart	Datasheet	195In Stock 1,470On Order On Order Ship Dates Mfr. #: XR21V1412IL32-F Stock: 195 Can Ship Immediately On Order: 980 Expected 10/13/2026 490 Expected 12/18/2026 Factory Lead-Time: 26 Weeks	S/31.49 S/24.37 S/22.62 S/21.06 View S/19.54 S/19.15 S/18.26 Quote	Min.: 1 Mult.: 1	XR21V1412	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-32	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	20 mA	- 40 C	+ 85 C	Tray
USB Interface IC 4-Ch 12Mbps 48MHz Internal clock; UART XR21V1414IM48-F MaxLinear 1: S/44.37 7,810Expected 11/10/2026	Mfr. Part # XR21V1414IM48-F Mouser Part # 701-XR21V1414IM48-F	MaxLinear	USB Interface IC 4-Ch 12Mbps 48MHz Internal clock; UART Learn More about MaxLinear xr21v14x uart	Datasheet	7,810Expected 11/10/2026	S/44.37 S/34.68 S/32.27 S/29.58 View S/28.38 S/27.79	Min.: 1 Mult.: 1	XR21V1414	USB Controllers	Bridge, USB to UART	SMD/SMT	TQFP-48	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	16 mA	- 40 C	+ 85 C	Tray
USB Interface IC 1Ch FS USB UART128B TX & 384B RX FIFO XR21B1411IL16-F MaxLinear 1: S/21.72 3,326On Order	Mfr. Part # XR21B1411IL16-F Mouser Part # 701-XR21B1411IL16-F	MaxLinear	USB Interface IC 1Ch FS USB UART128B TX & 384B RX FIFO Learn More about MaxLinear xr21b1411 uart	Datasheet	3,326On Order On Order Ship Dates Mfr. #: XR21B1411IL16-F Stock: 0 On Order: 1,366 Expected 12/15/2026 1,960 Expected 2/23/2027 Factory Lead-Time: 26 Weeks	S/21.72 S/16.58 S/15.30 S/13.86 View S/12.81 S/12.42 S/11.99	Min.: 1 Mult.: 1	XR21B1411	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-16	USB 2.0	Full Speed (FS)	12 Mb/s,kb	4.4 V	5.25 V	11 mA	- 40 C	+ 85 C	Tray
USB Interface IC XR21V1414IM48TR-F XR21V1414IM48TR-F MaxLinear 1: S/44.37 1,518On Order	Mfr. Part # XR21V1414IM48TR-F Mouser Part # 701-XR21V1414IM48TRF	MaxLinear	USB Interface IC XR21V1414IM48TR-F Learn More about MaxLinear xr21v14x uart	Datasheet	1,518On Order On Order Ship Dates Mfr. #: XR21V1414IM48TR-F Stock: 0 On Order: 18 Expected 11/6/2026 1,500 Expected 11/13/2026 Factory Lead-Time: 26 Weeks	Cut Tape S/44.37 S/34.68 S/32.27 S/29.58 View Reel S/27.44 S/28.61 S/27.56 S/27.44 S/27.44 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	XR21V1414	USB Controllers	Bridge, USB to UART	SMD/SMT	TQFP-48	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	16 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
USB Interface IC 1 CH FS USB UART 512 Byte TX/RX FIFOs XR21B1420IL28TR-F MaxLinear 3,000: S/16.78 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # XR21B1420IL28TR-F Mouser Part # 701-21B1420IL28TRF	MaxLinear	USB Interface IC 1 CH FS USB UART 512 Byte TX/RX FIFOs Learn More about MaxLinear exaruart	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel S/16.78	Min.: 3,000 Mult.: 3,000 : 3,000	XR21B1420	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-28	USB 2.0	Full Speed (FS)	12 Mb/s,kb	3 V, 4.4 V	3.6 V, 5.25 V	15 mA	- 40 C	+ 85 C	Reel
USB Interface IC 2 Chan FS USB UART w/ 256 Byte FIFO XR21V1412IL32TR-F MaxLinear 3,000: S/20.28 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # XR21V1412IL32TR-F Mouser Part # 701-XR21V1412IL32TRF	MaxLinear	USB Interface IC 2 Chan FS USB UART w/ 256 Byte FIFO Learn More about MaxLinear xr21v14x uart	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel S/20.28	Min.: 3,000 Mult.: 3,000 : 3,000	XR21V1412	USB Controllers	Bridge, USB to UART	SMD/SMT	QFN-32	USB 2.0	Full Speed (FS)	12 Mb/s,kb	2.97 V	3.63 V	16 mA	- 40 C	+ 85 C	Reel

XR21x14x Universal Async Receiver Transmitters

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