Texas Instruments

SN65LBC176AP  

Drivers, Receivers, Transceivers

SN65LBC176AP Description

The SN65LBC176AP from Texas Instruments is a robust half-duplex RS-422/RS-485 transceiver designed for reliable differential data transmission in industrial and communication systems. Housed in an 8-pin DIP package, this through-hole-mount IC operates within a 4.75V to 5.25V supply range, delivering 30Mbps high-speed data rates while maintaining signal integrity over long distances. With built-in 50mV receiver hysteresis, it ensures noise immunity in electrically noisy environments. The device is ROHS3 compliant and adheres to ECCN 5A991B1, making it suitable for global deployments. Though marked obsolete, it remains a trusted solution for legacy systems requiring RS-485/RS-422 compatibility.

SN65LBC176AP Features

• Protocol Support: Fully compatible with RS-422 and RS-485 standards.
• High-Speed Operation: 30Mbps data rate for efficient communication.
• Noise Immunity: 50mV receiver hysteresis minimizes false triggering in noisy conditions.
• Robust Design: ±15kV ESD protection (human-body model) enhances durability.
• Wide Voltage Range: Operates at 4.75V–5.25V, ideal for 5V systems.
• Half-Duplex: Single differential bus for bidirectional communication.
• Industrial Compliance: REACH unaffected and ROHS3 compliant for environmental safety.
• Legacy Reliability: Proven performance in harsh environments, despite obsolete status.

SN65LBC176AP Applications

• Industrial Automation: PLCs, motor control, and factory networks requiring noise-resistant communication.
• Telecom Infrastructure: Base stations and repeaters leveraging RS-485 for long-distance data links.
• Building Automation: HVAC systems, lighting control, and security networks.
• Legacy System Upgrades: Retrofitting older equipment with robust RS-485 interfaces.
• Medical Devices: Patient monitoring systems where signal integrity is critical.

Conclusion of SN65LBC176AP

The SN65LBC176AP excels in noise immunity, high-speed data transfer, and industrial durability, making it a preferred choice for RS-422/RS-485 applications despite its obsolete status. Its 50mV hysteresis, 30Mbps throughput, and ESD protection address challenges in electrically hostile environments. While newer alternatives exist, this transceiver remains a cost-effective solution for legacy systems, industrial controls, and long-distance communication networks. Engineers valuing reliability over cutting-edge availability will find it indispensable.

SN65LBC176AP Documents

Download datasheets and manufacturer documentation for SN65LBC176AP

Datasheets :

SN65LBC176A, SN75LBC176A      

PCN Obsolescence/ EOL :

EOL 17/May/2023      

HTML Datasheet :

SN65LBC176A, SN75LBC176A      

PCN Design/Specification :

Material Set 30/Mar/2017