Texas Instruments

SN75ALS176BD  

Drivers, Receivers, Transceivers

SN75ALS176BD Description

The SN75ALS176BD is a half-duplex transceiver designed for RS-422 and RS-485 communication protocols. Manufactured by Texas Instruments, this interface IC chip is housed in an 8SOIC package and is suitable for surface mount applications. It features one driver and one receiver, making it ideal for applications requiring balanced data transmission over long distances and in noisy environments. The SN75ALS176BD operates within a supply voltage range of 4.75V to 5.25V and can function reliably in an ambient temperature range of 0°C to 70°C. Despite being marked as obsolete, its robust design and compliance with industry standards such as REACH and RoHS3 make it a reliable choice for legacy systems.

SN75ALS176BD Features

• Single Driver/Receiver Configuration: The SN75ALS176BD offers a 1/1 driver/receiver configuration, which is optimal for half-duplex communication systems where bidirectional data transmission is required over a single pair of wires.
• Wide Operating Temperature Range: With an operating temperature range of 0°C to 70°C, this transceiver is suitable for a variety of industrial and commercial applications where environmental conditions may vary.
• Receiver Hysteresis: The receiver incorporates a hysteresis of 60 mV, which enhances noise immunity and ensures reliable data reception even in the presence of electrical noise.
• Supply Voltage Flexibility: Operating within a supply voltage range of 4.75V to 5.25V, the SN75ALS176BD provides flexibility in power supply options, making it compatible with a wide range of systems.
• Compliance and Safety: The SN75ALS176BD is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for electronic components.
• Moisture Sensitivity Level: With an MSL rating of 1 (unlimited), the SN75ALS176BD is suitable for storage and handling in various environmental conditions without the need for special precautions against moisture.

SN75ALS176BD Applications

The SN75ALS176BD is well-suited for applications that require reliable and efficient data transmission over long distances. Its half-duplex configuration and robust performance make it ideal for:

• Industrial Automation: Use in programmable logic controllers (PLCs) and distributed control systems (DCS) where data integrity and noise immunity are critical.
• Telecommunications: In communication systems where balanced data transmission is necessary to minimize signal degradation and interference.
• Data Acquisition Systems: For interfacing with sensors and actuators in environments with high levels of electromagnetic interference (EMI).
• Building Automation: For control systems in HVAC, lighting, and security applications where reliable communication is essential.

Conclusion of SN75ALS176BD

The SN75ALS176BD, despite being marked as obsolete, remains a reliable and versatile transceiver for RS-422 and RS-485 applications. Its single driver/receiver configuration, wide operating temperature range, and receiver hysteresis make it well-suited for environments where noise immunity and data integrity are paramount. The flexibility in supply voltage and compliance with environmental standards further enhance its suitability for a broad range of applications. While newer alternatives may offer additional features, the SN75ALS176BD continues to provide a robust solution for legacy systems and applications requiring reliable half-duplex communication.

SN75ALS176BD Documents

Download datasheets and manufacturer documentation for SN75ALS176BD

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