F81439AN-0.jpg4.6944000000 49000
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Fintek F81439AN

   
Manufacturer Part Number : F81439AN
Manufacturer : Fintek
Description : Single 3.3V or 5V RS232/RS422/RS485 Multiprotocol Transceiver
Package : TQFN40
Datasheet : F81439AN.PDF F81439AN PDF
EDA / CAD Models : F81439AN by SnapEDA
Stock Condition :In Stock 49000, New Original
Delivery:
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1 86 7627204 /datasheets/IntegratedCircuits/F81439AN-0.pdf fintek/f81439an

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Pricing

*All prices are in USD

Qty Unit Price Ext Price
1 $4.6944 $4.6944
50 $4.2250 $211.2500
100 $3.8025 $380.2500
500 $3.4222 $1711.1000
1000 $3.0800 $3080.0000

In Stock 49000 PCS

Subtotal : $0.000

*Products eligible for online ordering ship within 1-2 business days,please contact us for exact shipping times.

Fintek F81439AN

In Stock: 49000   Qty:

Unit Price: $

Ext Price: $

The Fintek F81439AN is a versatile multiprotocol transceiver designed to support RS-232, RS-422, and RS-485 communication standards within a single compact device. Operating from a single 3.3V to 5V power supply, this transceiver provides flexible communication options for industrial and embedded systems. It supports RS-232 data rates up to 1.5 Mbps and RS-422/RS-485 communication speeds up to 10 Mbps, delivering reliable high-speed data transmission for demanding applications.

Fintek F81439AN original package label

The F81439AN includes advanced features such as adjustable slew rate control for EMI reduction, built-in failsafe protection, integrated termination and bias resistors for selected modes, and strong ±15kV ESD protection for improved system reliability. With eight selectable operating modes and support for both half-duplex and full-duplex communication, the device is suitable for industrial automation, communication equipment, embedded control systems, and networking applications. Packaged in a compact TQFN40L form factor, the F81439AN provides efficient integration into modern electronic designs. As a professional Fintek supplier and distributor, Nantian Electronics maintains stock of F81439AN and provides datasheets, pin diagrams, and technical support for customer development and purchasing needs.

What are the main features of the F81439AN?

The F81439AN is a multiprotocol transceiver supporting RS-232, RS-422, and RS-485 communication standards. It operates from a single 3.3V to 5V power supply and supports data rates up to 10 Mbps for RS-422/RS-485 communication. The device also features adjustable slew rate control, built-in failsafe protection, integrated termination options, and strong ±15kV ESD protection.

What is the F81439AN used for?

It is commonly used in industrial automation, embedded systems, communication equipment, POS systems, and networking applications that require flexible serial communication interfaces and reliable high-speed data transmission.

Does the F81439AN have alternative manufacturer and part numbers?

Yes. Similar multiprotocol transceivers are available from Texas Instruments, Analog Devices, Maxim Integrated, and Renesas. Alternatives should be selected based on interface compatibility, communication speed, package type, and protection features.

Is technical support available for this part?

Yes. Nantian Electronics provides technical support, including datasheets, pin diagrams, parameter information, replacement recommendations, and purchasing assistance for the F81439AN.

Reviews for this product
Ali***dra  2026-05-26
good price, good packaging, fast delivery, thank you!

Warranty & Returns

Warranty, Returns, and Additional Information

QA & Return Policy

Parts Quality Guarantee: 365 days

Returns for refund: within 90 days

Returns for Exchange: within 90 days

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Shipping:Fedex ,UPS, DHL,TNT, SF.

Parts Packaging Guarantee:100% ESD anti-static protection, combined with high toughness and superior impact absorption.

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How we verify F81439AN authenticity?

At NTCHIP.com, we are committed to delivering the highest standards in electronic components. For critical Integrated Circuits (ICs)-Interface - Drivers, Receivers, Transceivers like the Fintek F81439AN, we operate a professional Quality Control (QC) center to ensure every unit you receive is factory-grade in quality and reliability.

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