XR21B1420IL28TR-F

$2.47

Description：IC UART TXRX 512B 1CH 28QFN
Series：-

SKU:b56f4ed5d5ea Category: Controllers Brand: MaxLinear, Inc.

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Product introduction

Product Detailed Parameters

Description：IC UART TXRX 512B 1CH 28QFN
Series：-
Mfr：MaxLinear, Inc.
Package：Tape & Reel (TR)
Protocol：USB
Function：Bridge, USB to UART
Interface：UART
Standards：USB 2.0
Voltage - Supply：3V ~ 5.25V
Current - Supply：15mA
Operating Temperature：-40°C ~ 85°C
Package / Case：28-VFQFN Exposed Pad
Supplier Device Package：28-QFN (5x5)
Grade：-
Qualification：-

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XR21B1420IL28TR-F

Overview

The XR21B1420IL28TR-F is a single-channel Full Speed USB 2.0 to UART bridge integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 4.4 V to 5.25 V, with a typical operating current of 11 mA at 5 V. The device features 512-byte transmit and receive FIFOs and supports data rates up to 12 Mb/s. It is housed in a QFN-28 package and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

Integrates a USB 2.0 Full Speed interface with a UART controller for bidirectional data conversion
Includes dedicated 512-byte transmit and receive FIFO buffers to manage data flow
Supports standard RS-232 signal levels and baud rate configurations

Applications

Industrial automation systems requiring serial communication over USB
Embedded devices needing USB connectivity for legacy UART peripherals
Test and measurement equipment interfaces

Procurement Notes

Verify the specific suffix and package variant against the official MaxLinear datasheet before ordering. Confirm that the system power supply meets the 4.4 V to 5.25 V requirement. Check for any recent product change notices or lifecycle status updates from the manufacturer to ensure long-term availability.

Selection Notes

Select this component when a single-port USB-to-UART solution with substantial buffering is required. Ensure the host system provides a stable 5 V rail compatible with the specified input voltage range. Consider the QFN-28 thermal performance if high data throughput is expected in enclosed environments.

Part Context

This part belongs to the XR21B14xx series of USB to UART bridges from MaxLinear. It shares functional similarities with other members like the XR21B1411 but differs in package type and specific electrical characteristics. The series is designed to replace traditional FTDI-compatible chips in modern embedded designs.

Replacement Considerations

Potential substitutes include the XR21B1411IL16TR-F for QFN-16 applications or the XR21V1414IM48TR-F for TQFP-48 requirements. Verify pin compatibility and FIFO sizes when cross-referencing with other MaxLinear bridge controllers.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.