Texas Instruments

SN74LS280DR

SN74LS280DR Description

The SN74LS280DR is a 9-bit parity generator/checker integrated circuit (IC) from Texas Instruments, designed for surface-mount applications. It belongs to the 74LS series, a well-known and widely used family of TTL (Transistor-Transistor Logic) devices. This IC operates within a supply voltage range of 4.75 V to 5.25 V and is suitable for use in environments with an operating temperature range of 0°C to 70°C. The SN74LS280DR is packaged in a 14-pin small-outline integrated circuit (SOIC) and is available in tape and reel (TR) format, making it ideal for automated assembly processes.

SN74LS280DR Features

• Operating Temperature Range: 0°C to 70°C, ensuring reliable performance in a variety of standard operating environments.
• Logic Type: Parity Generator/Checker, capable of generating parity bits for data transmission and checking the parity of received data to detect errors.
• Supply Voltage: 4.75 V to 5.25 V, providing flexibility in power supply design.
• Output Current: 400µA for high output and 8mA for low output, ensuring robust signal integrity.
• Mounting Type: Surface Mount, enabling efficient use of space on printed circuit boards (PCBs) and compatibility with modern manufacturing techniques.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), indicating that the device is not sensitive to moisture, reducing the risk of damage during storage and handling.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring that the device meets environmental and safety standards.
• Obsolete Status: While the SN74LS280DR is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are required.

SN74LS280DR Applications

The SN74LS280DR is ideal for applications requiring data integrity and error detection in digital systems. Its primary use cases include:

• Data Transmission: Generating and checking parity bits for serial or parallel data transmission to ensure data accuracy and reliability.
• Computer Systems: Enhancing the reliability of data storage and retrieval by detecting errors in data streams.
• Telecommunications: Ensuring data integrity in communication systems where error detection is critical.
• Industrial Control Systems: Providing error detection in control signals to maintain system reliability and safety.

Conclusion of SN74LS280DR

The SN74LS280DR is a versatile and reliable 9-bit parity generator/checker IC that offers robust performance and compliance with modern environmental standards. Its surface-mount packaging and wide operating temperature range make it suitable for a variety of applications, particularly in data transmission and error detection. Despite its obsolete status, the SN74LS280DR remains a valuable component for legacy systems and applications where its unique features and performance benefits are essential.