XR21B1411IL16-F

Overview

The XR21B1411IL16-F is an enhanced Universal Asynchronous Receiver and Transmitter (UART) with a USB interface, compliant with the Full-Speed USB 2.0 specification supporting 12 Mbps data transfer rates. It operates from a single 5V power supply within a voltage range of 4.4V to 5.25V, consuming 11 mA of operating current. The device features a programmable internal clock ranging from 6 MHz to 48 MHz, eliminating the need for external crystals. It includes a 128-byte transmit FIFO and a 384-byte receive FIFO. The component supports baud rates up to 12 Mbps via a fractional baud rate generator and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated programmable internal oscillator eliminates the requirement for external crystal or oscillator components.
• Supports automatic transceiver direction control to simplify hardware and software implementation for half-duplex RS-485 applications.
• Includes on-board OTP memory allowing programming of Vendor ID, Product ID, bus-powered mode, and default baud rate settings.
• Provides WHQL certified virtual COM port drivers for multiple Windows versions and Linux operating systems.

Applications

• Portable appliances
• External converters and dongles
• Battery-operated devices
• Cellular data devices
• Factory automation and process controls

Procurement Notes

Verify the specific ordering suffix to confirm packaging method. The IL16-F designation indicates tray packaging, whereas the IL16TR-F variant utilizes tape and reel packaging. Ensure the selected package matches the intended manufacturing assembly process requirements before finalizing procurement orders.

Selection Notes

Select this component when a single-channel USB-to-UART bridge is required with integrated clock generation. It is suitable for designs needing large FIFO buffers to optimize throughput. Verify that the application environment remains within the specified -40°C to +85°C temperature range and utilizes a 5V power supply architecture.

Part Context

This part belongs to the XR21B1411 series of enhanced full-speed USB UARTs manufactured by MaxLinear. It serves as a direct replacement for previous generation UARTs that required external oscillators. The family includes variants with different packaging options, such as the TR-F suffix for tape and reel delivery.

Replacement Considerations

The XR21B1411IL16TR-F is a functional equivalent offering identical electrical specifications but differs in packaging format, utilizing tape and reel instead of trays. Other members of the XR21B1411 series share similar core functionalities but may vary in package type or thermal characteristics.