XR68C681JTR-F

Description：IC UART CMOS DUAL 44PLCC
Series：-

SKU:3471bb57353b Category: UARTs (Universal Asynchronous Receiver Transmitter) Brand: MaxLinear, Inc.

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Product introduction

Product Detailed Parameters

Description：IC UART CMOS DUAL 44PLCC
Series：-
Mfr：MaxLinear, Inc.
Package：Tape & Reel (TR)
Features：Internal Oscillator, Timer/Counter
Number of Channels：2, DUART
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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XR68C681JTR-F

Overview

The XR68C681JTR-F is a dual-channel UART interface IC manufactured by MaxLinear, Inc. It operates with a maximum data rate of 1 Mbps and supports a supply voltage of 5 V. The component is housed in a 44-PLCC package with dimensions of 16.59 x 16.59 mm. Key features include an internal oscillator and integrated timer/counter capabilities. The device is classified as a CMOS serial I/O controller compatible with Motorola bus interfaces.

Feature Summary

Dual channel UART architecture for simultaneous serial communication
Integrated internal oscillator eliminating external clock requirements
Built-in timer/counter functionality for precise timing control

Applications

Serial I/O controller applications requiring dual asynchronous channels
Motorola bus compatible system interfaces
CMOS-based embedded communication modules

Procurement Notes

Verify the specific suffix JTR-F against official MaxLinear documentation to confirm the tape and reel packaging configuration. Confirm RoHS compliance status through current datasheets or PCN notices. Check for any product discontinuation notifications or assembly site changes prior to procurement planning.

Selection Notes

Select this component when a dual-channel UART solution with integrated timing functions is required. Ensure the design accommodates the 44-PLCC surface mount footprint. Verify that the 5 V supply voltage aligns with the target system power rails and that the 1 Mbps data rate meets the application's throughput requirements.

Part Context

This part belongs to the XR68C681 series of dual UART controllers. It is functionally related to other variants such as the XR68C681CJ-F and XR68C681CP, which share similar core specifications but differ in package type and manufacturing origin between Exar and MaxLinear.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate legacy equivalents like the MC68681 only if pin compatibility and electrical characteristics are verified through independent technical comparison.

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

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Mode of Transportation

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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.