Texas Instruments

SN75ALS176D  

Drivers, Receivers, Transceivers

SN75ALS176D Description

The SN75ALS176D from Texas Instruments is a half-duplex RS-422/RS-485 transceiver designed for robust differential data communication in industrial and commercial applications. Housed in an 8-pin SOIC package, this surface-mount IC integrates one driver and one receiver, supporting bidirectional data transmission over long distances with high noise immunity. Operating within a 4.75V to 5.25V supply range, it ensures reliable performance in environments with 0°C to 70°C ambient temperatures. Though marked obsolete, it remains a viable choice for legacy systems due to its compliance with ROHS3 and REACH standards.

SN75ALS176D Features

• Differential Signaling: Compatible with RS-422 and RS-485 protocols, enabling noise-resistant communication up to 10 Mbps.
• Receiver Hysteresis (60 mV): Enhances signal integrity by minimizing errors from slow-moving or noisy inputs.
• Half-Duplex Operation: Optimized for bidirectional communication on a single pair of wires, reducing wiring complexity.
• Wide Supply Voltage Tolerance (4.75V–5.25V): Ensures stable operation despite minor power fluctuations.
• Surface-Mount Design (8-SOIC): Compact footprint suitable for space-constrained PCB layouts.
• Robust ESD Protection: Meets industry standards for electrostatic discharge resilience.

SN75ALS176D Applications

• Industrial Automation: Ideal for PLC networks, motor control, and sensor interfaces requiring noise immunity.
• Telecommunications: Used in modems, routers, and base stations for differential data transmission.
• Building Automation: Supports HVAC systems, lighting control, and security networks with long-distance reliability.
• Legacy System Upgrades: A cost-effective solution for retrofitting older RS-485/422 infrastructure.

Conclusion of SN75ALS176D

The SN75ALS176D excels in environments demanding high-speed, noise-resistant communication, leveraging its 60 mV hysteresis and wide voltage tolerance to outperform basic transceivers. While obsolete, its ROHS3 compliance and proven reliability make it a pragmatic choice for maintaining or upgrading legacy systems. Engineers seeking a compact, robust transceiver for industrial or telecom applications will find this IC a dependable solution.

SN75ALS176D Documents

Download datasheets and manufacturer documentation for SN75ALS176D

Datasheets :

SN65ALS176, SN75ALS176/A/B      

PCN Obsolescence/ EOL :

EOL Notice 12/Jan/2023      

HTML Datasheet :

SN65ALS176, SN75ALS176/A/B      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       Design 25/Feb/2022