Texas Instruments

SN65LBC171DBR

SN65LBC171DBR Description

The SN65LBC171DBR is a half-duplex transceiver designed for reliable data transmission in RS422 and RS485 communication protocols. Manufactured by Texas Instruments, this interface IC chip is part of the SN65L family and is housed in a 20SSOP package. It features a supply voltage range of 4.75V to 5.25V and supports a data rate of up to 30Mbps. The SN65LBC171DBR includes three drivers and three receivers, each with a receiver hysteresis of 40 mV, ensuring robust signal integrity. This transceiver is designed for surface mount applications and is available in a tape and reel (TR) packaging format. Although the product is now obsolete, it remains a reliable choice for specific legacy applications.

SN65LBC171DBR Features

• Triple Drivers and Receivers: The SN65LBC171DBR features three drivers and three receivers, providing flexibility and redundancy in communication systems.
• High Data Rate: Capable of supporting data rates up to 30Mbps, this transceiver ensures efficient and fast data transmission.
• Receiver Hysteresis: With a receiver hysteresis of 40 mV, the SN65LBC171DBR minimizes noise-induced errors and enhances signal integrity.
• Wide Supply Voltage Range: The transceiver operates within a supply voltage range of 4.75V to 5.25V, making it suitable for a variety of power supply conditions.
• Half-Duplex Operation: Designed for half-duplex communication, the SN65LBC171DBR is ideal for applications where bidirectional communication is required but only one direction at a time.
• Surface Mount Compatibility: The surface mount mounting type ensures ease of integration into modern PCB designs.
• Compliance and Safety: The SN65LBC171DBR is REACH unaffected and RoHS3 compliant, adhering to environmental and safety standards.
• Moisture Sensitivity Level: With an MSL rating of 1 (unlimited), the transceiver is suitable for storage and handling in various environmental conditions.

SN65LBC171DBR Applications

The SN65LBC171DBR is well-suited for a variety of industrial and commercial applications where reliable data communication is crucial. Some specific use cases include:

• Industrial Automation: In industrial control systems, the SN65LBC171DBR facilitates robust communication between PLCs, sensors, and actuators.
• Building Automation: For building management systems, this transceiver ensures reliable data transmission between HVAC systems, lighting controls, and security systems.
• Transportation Systems: In transportation applications, such as train control systems and traffic management, the SN65LBC171DBR provides reliable data links.
• Data Acquisition Systems: For data acquisition systems in laboratories and industrial settings, the transceiver ensures accurate and reliable data transfer.
• Telecommunications: In telecommunication infrastructure, the SN65LBC171DBR can be used for data transmission in remote monitoring and control applications.

Conclusion of SN65LBC171DBR

The SN65LBC171DBR, despite being obsolete, remains a reliable and robust transceiver for RS422 and RS485 communication protocols. Its triple drivers and receivers, high data rate, and receiver hysteresis make it a versatile choice for various applications. The wide supply voltage range and surface mount compatibility ensure ease of integration into modern systems. While newer models may offer additional features, the SN65LBC171DBR continues to provide reliable performance in legacy systems and specific applications where its features are well-suited.