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IC manufacturers MaxLinear

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MaxLinear XR21B1420 | Demoboard XR21B1420_28 Evaluation Board

Enhanced 1-Ch Full-Speed USB UART

Overview

TopologyOther Topology
IC revision1

Description

The XR21B1420 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to USB interface. The USB interface is fully compliant to the USB 2.0 (Full-Speed) specification with 12 Mbps USB data transfer rate. The USB interface also supports USB suspend, resume and remote wakeup operations. The USB Vendor ID, Product ID, power mode, remote wakeup support, maximum power, and numerousother settings may be programmed in the on-chip OTP memory via the USB interface.The XR21B1420 includes an internal oscillator and does not require an external crystal/oscillator. Any UART baud rate up to 12 Mbps may be generated with this internal clock and the fractional baud rate generator. The UART pins may also be configured as GPIO; direction, state, output driver type and input pull-up or pull-down resistors are programmed either through on chip OTP, or on the fly via memory mapped registers.

Features

±15kV ESD on USBD+/USBD-USB 2.0 Compliant, Full-Speed (12Mbps)Unique pre-programmed USB serial numberInternally generated 48MHz core clockEnhanced UART featuresBaud rates up to 12 MbpsFractional Baud Rate Generator512-byte TX and 512-byte RX FIFOsAuto Hardware / Software Flow ControlMultidrop and Half-Duplex ModesAuto RS-485 Half-Duplex ControlSelectable GPIO or Modem I/OUp to 10 GPIOs5V tolerant GPIO inputsSuspend state GPIO configurationConfigurable clock output28-pin QFN packageIndustrial -40°C to +85°C Temperature Range

Typical applications

  • USB to Serial Controllers
  • Building Automation / Factory and Process Control
  • Security Systems / ATM Terminals

More information

Products

Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
Technical ReferenceApplicationInterface TypeMountIR
(A)
Working Voltage
(V (AC))
PinsRowsGenderTypeIR
(A)
Packaging Samples
150060RS75000SPEC
7 files WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 250 2 AlInGaP 140 0603 -40 up to +85 °C 1.6 0.8 0.7 SMT Tape and Reel
885012205037SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)100 nF ±10% 16 0402 -55 up to +125 °C 55 GΩ X7R Class II 1 0.5 0.5 0.25 X7R0402104K016DFCT10000
885012106012SPEC
7 files WCAP-CSGP MLCCs 10 V(DC)4.7 µF ±20% 10 0603 -55 up to +85 °C 100.02 GΩ X5R Class II 1.6 0.8 0.8 0.4 X5R0603475M010DFCT10000
885012207051SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)1 µF ±10% 16 0805 -55 up to +125 °C 50.5 GΩ X7R Class II 2 1.25 1.25 0.5 X7R0805105K016DFCT10000
885012107014SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)10 µF ±20% 16 0805 -55 up to +85 °C 100.01 GΩ X5R Class II 2 1.25 1.25 0.5 X5R0805106M016DFCT10000
61300811121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

6 files WR-PHD 2.54 mm THT Pin Header -40 up to +105 °C1000 MΩ 20.32 THT 250 8 Single Pin Header Straight 3 Bag
61300211121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

6 files WR-PHD 2.54 mm THT Pin Header -40 up to +105 °C1000 MΩ 5.08 THT 250 2 Single Pin Header Straight 3 Bag
61300311121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

6 files WR-PHD 2.54 mm THT Pin Header -40 up to +105 °C1000 MΩ 7.62 THT 250 3 Single Pin Header Straight 3 Bag
61300411121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

6 files WR-PHD 2.54 mm THT Pin Header -40 up to +105 °C1000 MΩ 10.16 THT 250 4 Single Pin Header Straight 3 Bag
61300821121SPEC
6 files WR-PHD 2.54 mm THT Dual Pin Header -40 up to +105 °C1000 MΩ 10.16 THT 3 250 8 Dual Pin Header Board Stacker 3 Bag
61301011121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

6 files WR-PHD 2.54 mm THT Pin Header -40 up to +105 °C1000 MΩ 25.4 THT 250 10 Single Pin Header Straight 3 Bag
61301021121SPEC
6 files WR-PHD 2.54 mm THT Dual Pin Header -40 up to +105 °C1000 MΩ 12.7 THT 250 10 Dual Pin Header Board Stacker 3 Bag
61400416121SPEC
6 files WR-COM USB 2.0 Horizontal THT -40 up to +105 °C1000 MΩ USB 2.0 Type B THT 30 4 Receptacle Horizontal 1.5 Tray
Order Code Data­sheet Simu­lation
150060RS75000SPEC
885012205037SPEC
885012106012SPEC
885012207051SPEC
885012107014SPEC
61300811121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

61300211121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

61300311121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

61300411121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

61300821121SPEC
61301011121SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

61301021121SPEC
61400416121SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
Technical ReferenceApplicationInterface TypeMountIR
(A)
Working Voltage
(V (AC))
PinsRowsGenderTypeIR
(A)
Packaging Samples