Texas Instruments

SN74AS646NT  

Buffers, Drivers, Receivers, Transceivers

SN74AS646NT Description

The SN74AS646NT is a non-inverting 8-bit transceiver logic IC chip, designed for high-performance data transmission applications. Manufactured by Texas Instruments, this chip is part of the 74AS series and is housed in a through-hole package, specifically a 24-pin DIP (Dual In-line Package). The SN74AS646NT operates within a supply voltage range of 4.5V to 5.5V and is suitable for industrial applications with an operating temperature range of 0°C to 70°C (TA). Despite being marked as obsolete, the SN74AS646NT remains a reliable choice for specific legacy systems and applications requiring robust data transmission capabilities.

SN74AS646NT Features

• High-Performance Data Transmission: The SN74AS646NT is designed to handle 8 bits of data per element, ensuring efficient and reliable data transfer between devices.
• Robust Power Supply Range: With a supply voltage range of 4.5V to 5.5V, this IC is suitable for a variety of power supply configurations, making it versatile for different system designs.
• High Current Capability: The IC supports an output current of 15mA for high-level signals and 48mA for low-level signals, ensuring strong signal integrity and compatibility with a wide range of peripheral devices.
• Compatibility and Compliance: The SN74AS646NT is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, indicating it is not sensitive to moisture, which enhances its reliability in various environmental conditions.
• Unique Packaging: Housed in a tube package, the SN74AS646NT is protected during shipping and storage, reducing the risk of damage and ensuring the IC remains in optimal condition until deployment.

SN74AS646NT Applications

The SN74AS646NT is ideal for applications requiring reliable and efficient data transmission between devices. Some specific use cases include:

• Industrial Control Systems: The robustness and wide operating temperature range make it suitable for industrial environments where reliability and performance are critical.
• Telecommunications: In systems requiring high-speed data transfer, the SN74AS646NT can facilitate efficient communication between different components.
• Computer Peripherals: The high current capability and compatibility with various power supply configurations make it a suitable choice for interfacing with computer peripherals and other electronic devices.
• Automotive Electronics: The SN74AS646NT's ability to handle a wide range of operating conditions and its compliance with environmental standards make it a potential candidate for automotive applications where durability and reliability are paramount.

Conclusion of SN74AS646NT

The SN74AS646NT, despite being marked as obsolete, continues to offer significant value in specific applications requiring reliable and efficient data transmission. Its robust design, wide operating temperature range, and compliance with environmental standards make it a reliable choice for industrial and automotive applications. The high current capability and compatibility with various power supply configurations further enhance its versatility. While newer alternatives may exist, the SN74AS646NT remains a viable option for legacy systems and applications where its unique features and performance benefits are required.

SN74AS646NT Documents

Download datasheets and manufacturer documentation for SN74AS646NT

Datasheets :

SN54/74(ALS,AS)646/48(A,B)      

PCN Obsolescence/ EOL :

Multiple Devices 08/Apr/2015