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.

Results: 13
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) 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
MaxLinear USB Interface IC 2 CH FS USB UART= 512 Byte TX/RX FIFOs 2.067In Stock
Min.: 1
Mult.: 1

XR21B1422 USB Controllers Bridge, USB to UART SMD/SMT QFN-40 USB 2.0 Full Speed (FS) 12 Mb/s 3 V, 4.4 V 3.6 V, 5.25 V 15 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 4-Ch 12Mbps 48MHz Internal clock; UART 2.501In 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 1Ch FS USB UART128B TX & 384B RX FIFO 2.083In Stock
Min.: 1
Mult.: 1

XR21B1411 USB Controllers Bridge, USB to UART SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 4.4 V 5.25 V 11 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 1Ch FS USB UART128B TX & 384B RX FIFO 2.780In Stock
Min.: 1
Mult.: 1
Reel: 3.000

XR21B1411 USB Controllers Bridge, USB to UART SMD/SMT QFN-16 USB 2.0 Full Speed (FS) 12 Mb/s 4.4 V 5.25 V 11 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
MaxLinear USB Interface IC XR21V1414IM48TR-F 1.214In Stock
Min.: 1
Mult.: 1
Reel: 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 1 CH FS USB UART 512 Byte TX/RX FIFOs 793In Stock
Min.: 1
Mult.: 1

XR21B1420 USB Controllers Bridge, USB to UART SMD/SMT QFN-28 USB 2.0 Full Speed (FS) 12 Mb/s 3 V, 4.4 V 3.6 V, 5.25 V 15 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 1-Ch 12Mbps 48MHz Internal clock; UART 94In Stock
1.470Expected 05/05/2026
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 1 Chan FS USB UART w/ 256 Byte FIFO 625In Stock
3.000On Order
Min.: 1
Mult.: 1
Reel: 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 2-Ch 12Mbps 48MHz Internal clock; UART 275In 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 4 Chan FS USB UART 330In Stock
320Expected 03/03/2026
Min.: 1
Mult.: 1

XR21B1424 USB Controllers Bridge, USB to UART SMD/SMT LQFP-64 USB 2.0 Full Speed (FS) 12 Mb/s 3 V, 4.4 V 3.6 V, 5.25 V 15 mA - 40 C + 85 C Tray
MaxLinear USB Interface IC 4 CH FS USB UART 512 Byte TX/RX FIFOs 88In Stock
4.000Expected 21/04/2026
Min.: 1
Mult.: 1
Reel: 1.000

XR21B1424 USB Controllers Bridge, USB to UART SMD/SMT LQFP-64 USB 2.0 Full Speed (FS) 12 Mb/s 3 V, 4.4 V 3.6 V, 5.25 V 15 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
MaxLinear USB Interface IC 2 Chan FS USB UART w/ 256 Byte FIFO Non-Stocked Lead-Time 12 Weeks
Min.: 3.000
Mult.: 3.000
Reel: 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
MaxLinear USB Interface IC 1 CH FS USB UART 512 Byte TX/RX FIFOs Non-Stocked Lead-Time 19 Weeks
Min.: 3.000
Mult.: 3.000
Reel: 3.000

XR21B1420 USB Controllers Bridge, USB to UART SMD/SMT QFN-28 USB 2.0 Full Speed (FS) 12 Mb/s 3 V, 4.4 V 3.6 V, 5.25 V 15 mA - 40 C + 85 C Reel