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Overview
| Topology | Other Topology |
| IC revision | 1 |
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
- Security Systems / ATM Terminals
- Building Automation / Factory and Process Control
- USB to Serial Controllers
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Application | Interface Type | Mount | IR (A) | Working Voltage (V (AC)) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060RS75000 | SPEC | 25 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 625 | Red | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 °C up to +85 °C | – | – | – | 1.6 | 0.8 | – | – | – | SMT | – | – | – | – | 0.7 | – | – | – | Tape and Reel | ||
 | 885012205037 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 100 nF | ±10% | 16 | 0402 | -55 °C up to +125 °C | 5 | 5 GΩ | X7R Class II | 1 | 0.5 | 0.25 | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012106012 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | 4.7 µF | ±20% | 10 | 0603 | -55 °C up to +85 °C | 10 | 0.02 GΩ | X5R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207051 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 1 µF | ±10% | 16 | 0805 | -55 °C up to +125 °C | 5 | 0.5 GΩ | X7R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012107014 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 10 µF | ±20% | 16 | 0805 | -55 °C up to +85 °C | 10 | 0.01 GΩ | X5R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
 | 61300811121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 20.32 | – | – | – | – | THT | – | 250 | 8 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 61300211121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 5.08 | – | – | – | – | THT | – | 250 | 2 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 61300311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 7.62 | – | – | – | – | THT | – | 250 | 3 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 61300411121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 10.16 | – | – | – | – | THT | – | 250 | 4 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 61300821121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 10.16 | – | – | – | – | THT | 3 | 250 | 8 | Dual | – | Pin Header | Straight | 3 | Bag | |
 | 61301011121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 25.4 | – | – | – | – | THT | – | 250 | 10 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 61301021121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 12.7 | – | – | – | – | THT | – | 250 | 10 | Dual | – | Pin Header | Straight | 3 | Bag | |
 | 61400416121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-COM USB 2.0 Horizontal THT | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | USB 2.0 | Type B | THT | – | 30 | 4 | – | – | Receptacle | Horizontal | 1.5 | Tray |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Application | Interface Type | Mount | IR (A) | Working Voltage (V (AC)) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|