Texas Instruments

SN65HVD1781P  

Drivers, Receivers, Transceivers

SN65HVD1781P Description

The SN65HVD1781P from Texas Instruments is a robust half-duplex RS-485/RS-422 transceiver designed for reliable data communication in industrial and automotive environments. Housed in an 8-pin DIP package, this through-hole-mountable IC operates over a wide supply voltage range of 3.15V to 5.5V, making it compatible with both 3.3V and 5V systems. It supports data rates up to 1Mbps, ensuring high-speed transmission for demanding applications. The device features 50mV of receiver hysteresis, enhancing noise immunity in electrically noisy environments. With one driver and one receiver, it is ideal for point-to-point or multidrop networks, complying with ROHS3 and REACH environmental standards.

SN65HVD1781P Features

• Half-Duplex Operation: Enables bidirectional communication on a single twisted-pair network.
• Wide Voltage Range (3.15V–5.5V): Offers flexibility in power supply design.
• High Noise Immunity: 50mV receiver hysteresis minimizes errors in noisy conditions.
• 1Mbps Data Rate: Suitable for high-speed industrial automation and control systems.
• Robust Protection: Supports RS-485/RS-422 protocols with built-in ESD protection.
• Through-Hole Package (8-DIP): Simplifies prototyping and legacy system integration.
• Compliance: ROHS3, REACH Unaffected, and EAR99 classified for global deployment.

SN65HVD1781P Applications

• Industrial Automation: PLCs, motor control, and sensor networks requiring noise-resistant communication.
• Building Automation: HVAC systems, lighting control, and security networks.
• Automotive Systems: Diagnostic tools and in-vehicle data buses.
• Telecom Infrastructure: Base stations and signal repeaters.
• Legacy System Upgrades: Easy integration into existing through-hole designs.

Conclusion of SN65HVD1781P

The SN65HVD1781P stands out for its robustness, wide voltage range, and noise immunity, making it a preferred choice for industrial and automotive applications. Its through-hole package ensures compatibility with older systems, while 1Mbps data rates meet modern speed requirements. Texas Instruments’ reputation for reliability further solidifies its position as a go-to transceiver for RS-485/RS-422 networks. Ideal for engineers seeking a balance of performance, durability, and ease of integration.

SN65HVD1781P Documents

Download datasheets and manufacturer documentation for SN65HVD1781P

PCN Assembly/Origin :

Mult Dev Wafer Fab Site 09/Jan/2024      

Datasheets :

SN65HVD1780-82      

HTML Datasheet :

SN65HVD1780-82      

PCN Design/Specification :

SN65HVD178YY 07/Jun/2017