XR21V14x UART

MaxLinear XR21V14x Universal Asynchronous Receiver Transmitter (UART) with USB 2.0 compliant bus interface is the industry's fastest UART series. The USB interface on the XR21V14x supports 12Mbps USB data transfer rate, USB suspend, resume, and remote wake-up operations. This UART operates from an internal 48MHz clock, requires 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 XR21V14x UART is ideal for portable appliances, external converters (dongles), battery-operated devices, and more.

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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Type
Mounting Style
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Standard
Speed
Data Rate
Supply Voltage - Min
Supply Voltage - Max
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Minimum Operating Temperature
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MaxLinear USB Interface IC 1 Chan FS USB UART w/ 256 Byte FIFO
Datasheet
1,205In Stock
3,000Expected 6/10/2026
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 2.97 V 3.63 V 20 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
MaxLinear USB Interface IC 4-Ch 12Mbps 48MHz Internal clock; UART
Datasheet
1,745In Stock
Min.: 1
Mult.: 1

XR21V1414 USB Controllers Bridge, USB to UART SMD/SMT TQFP-48 USB 2.0 Full Speed (FS) 12 Mb/s 2.97 V 3.63 V 16 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC XR21V1414IM48TR-F
Datasheet
1,086In Stock
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 2.97 V 3.63 V 16 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
MaxLinear USB Interface IC 2-Ch 12Mbps 48MHz Internal clock; UART
Datasheet
33In Stock
Min.: 1
Mult.: 1

XR21V1412 USB Controllers Bridge, USB to UART SMD/SMT QFN-32 USB 2.0 Full Speed (FS) 12 Mb/s 2.97 V 3.63 V 20 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 1-Ch 12Mbps 48MHz Internal clock; UART
Datasheet
1,458Expected 5/5/2026
Min.: 1
Mult.: 1

XR21V1410 USB Controllers Bridge, USB to UART SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 2.97 V 3.63 V 20 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 2 Chan FS USB UART w/ 256 Byte FIFO
Datasheet
Non-Stocked Lead-Time 12 Weeks
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 2.97 V 3.63 V 16 mA - 40 C + 85 C Reel