Texas Instruments

SN74ALS621ADWRE4

SN74ALS621ADWRE4 Description

The SN74ALS621ADWRE4 is a high-performance logic IC chip manufactured by Texas Instruments, designed for non-inverting transmission and reception applications. This device is part of the 74ALS series and is housed in a 20-pin SOIC package, making it suitable for surface-mount applications. The SN74ALS621ADWRE4 operates within a voltage range of 4.5V to 5.5V and is specified for an operating temperature range of 0°C to 70°C (TA). It features an open collector output type, which allows for versatile interfacing with other digital circuits.

SN74ALS621ADWRE4 Features

• Operating Temperature: The SN74ALS621ADWRE4 is designed to operate within a temperature range of 0°C to 70°C (TA), making it suitable for a wide range of industrial and commercial applications.
• Number of Bits per Element: Each element in the device processes 8 bits of data, ensuring efficient data transmission and reception.
• Output Type: The open collector output type provides flexibility in interfacing with other digital systems, allowing for easy integration into various circuit designs.
• Voltage - Supply: The device operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with standard 5V digital systems.
• Mounting Type: The surface mount package type facilitates easy integration into modern PCB designs, reducing the overall footprint and enhancing reliability.
• Product Status: Although the SN74ALS621ADWRE4 is marked as obsolete, it remains a reliable choice for legacy systems and specific applications where its unique features are required.
• Series: As part of the 74ALS series, this IC inherits the robust performance and reliability associated with Texas Instruments' logic ICs.
• ECCN: The Export Control Classification Number (ECCN) is EAR99, indicating that this product is subject to the Export Administration Regulations (EAR) but is not specifically controlled.
• REACH Status: The SN74ALS621ADWRE4 is REACH unaffected, ensuring compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulations.
• RoHS Status: The device is ROHS3 compliant, adhering to the Restriction of Hazardous Substances (RoHS) directive, which restricts the use of certain hazardous materials in electronic products.
• Moisture Sensitivity Level (MSL): The MSL rating of 1 (Unlimited) indicates that the device is not sensitive to moisture, reducing the risk of damage during handling and storage.

SN74ALS621ADWRE4 Applications

The SN74ALS621ADWRE4 is ideal for applications requiring reliable data transmission and reception in digital systems. Its open collector output type makes it suitable for interfacing with various digital circuits, including microcontrollers, microprocessors, and other logic devices. Specific use cases include:

• Data Communication Systems: The device can be used in systems where data needs to be transmitted and received reliably, such as in industrial control systems, telecommunications, and networking equipment.
• Microcontroller Interfaces: The SN74ALS621ADWRE4 can serve as an interface between microcontrollers and other digital peripherals, facilitating efficient data transfer.
• Legacy Systems: Given its status as an obsolete part, the SN74ALS621ADWRE4 is particularly useful for maintaining and upgrading legacy systems where its specific features are required.

Conclusion of SN74ALS621ADWRE4

The SN74ALS621ADWRE4 is a versatile and reliable logic IC chip designed for non-inverting transmission and reception applications. Its robust performance, compatibility with standard 5V digital systems, and open collector output type make it a valuable component for a variety of applications. Despite being marked as obsolete, the SN74ALS621ADWRE4 remains a suitable choice for legacy systems and specific applications where its unique features are essential. With its compliance with industry regulations such as REACH and RoHS, the SN74ALS621ADWRE4 ensures that it meets the necessary standards for modern electronic design and manufacturing.