XR82C684J/44-F

Description：IC UART CMOS QUAD 44PLCC
Series：-

SKU:524ae43e3b72 Category: UARTs (Universal Asynchronous Receiver Transmitter) Brand: MaxLinear, Inc.

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Product introduction

Product Detailed Parameters

Description：IC UART CMOS QUAD 44PLCC
Series：-
Mfr：MaxLinear, Inc.
Package：Tube
Features：Internal Oscillator, Timer/Counter
Number of Channels：4, QUART
FIFO's：-
Protocol：-
Data Rate (Max)：1Mbps
Voltage - Supply：5V
With Auto Flow Control：-
With IrDA Encoder/Decoder：-
With False Start Bit Detection：-
With Modem Control：-
Mounting Type：Surface Mount
Package / Case：44-LCC (J-Lead)
Supplier Device Package：44-PLCC (16.59x16.59)
Grade：-
Qualification：-

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XR82C684J/44-F

Overview

The XR82C684J/44-F is a quad-channel UART interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating voltage of 5 V and a maximum working power current of 15 mA. The device supports data rates up to 1 Mb/s and features three bytes of transmit and receive FIFO storage per channel. It is housed in a PLCC-44 surface-mount package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

Quad asynchronous communication channels with independent full-duplex operation
Supports Intel and Motorola bus interfaces for flexible system integration
Integrated FIFO buffers reduce CPU overhead during serial data transfers

Applications

Industrial control systems requiring multiple serial ports
Embedded computer systems utilizing standard bus architectures
Communication equipment needing reliable asynchronous data transmission

Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Availability is restricted, and distributors may not stock this item in all regions. Verify current lifecycle status and sourcing options through authorized channels before design finalization.

Selection Notes

Select this part when four independent UART channels are required in a single package with 5V logic compatibility. Ensure the application environment stays within the specified -40°C to +85°C temperature range. Consider pinout compatibility if replacing legacy Exar components in existing designs.

Part Context

The XR82C684 series belongs to MaxLinear's VLIO UART product line, continuing the functionality of earlier Exar quad UART devices. This specific variant uses a PLCC-44 package, distinguishing it from other pinouts like the PLCC-68 version. It serves as a bridge between legacy microprocessor buses and modern serial communication needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official discontinuation notices for recommended alternatives or verify pin-compatible replacements with the manufacturer.

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.