Texas Instruments

SN74LS122D  

Multivibrators

SN74LS122D Description

The SN74LS122D is a monostable multivibrator integrated circuit (IC) designed for precise timing applications. Manufactured by Texas Instruments, this device belongs to the 74LS series, which is renowned for its reliability and performance in digital logic circuits. The SN74LS122D operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 28 ns, ensuring fast and accurate signal processing. It is housed in a surface-mount 14SOIC package, making it suitable for compact and high-density PCB designs. The operating temperature range of 0°C to 70°C makes it ideal for a variety of industrial and commercial applications.

SN74LS122D Features

• Monostable Logic Type: The SN74LS122D is designed as a monostable multivibrator, which means it can generate a single pulse of a specific duration in response to a trigger input. This feature is particularly useful for applications requiring precise timing control.
• Fast Propagation Delay: With a propagation delay of 28 ns, the SN74LS122D ensures rapid signal processing, making it suitable for high-speed digital circuits.
• Surface-Mount Technology (SMT): The 14SOIC package allows for surface-mounting, which is advantageous for modern PCB designs that require high component density and automated assembly processes.
• Single Independent Circuit: The SN74LS122D features one independent monostable circuit, simplifying design and reducing the need for additional components.
• Robust Power Supply Range: The IC operates within a supply voltage range of 4.75 V to 5.25 V, providing flexibility and ensuring stable performance across a range of power supply conditions.
• Compliance and Safety: The SN74LS122D is REACH unaffected and ROHS3 compliant, meeting environmental and safety standards for electronic components. 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.

SN74LS122D Applications

The SN74LS122D is ideal for a range of applications that require precise timing and control. Some specific use cases include:

• Digital Timing Circuits: The monostable multivibrator function makes it suitable for generating precise timing pulses in digital circuits, such as clock signals or delay lines.
• Pulse Generation: The ability to generate a single pulse in response to a trigger input is useful in applications like pulse-width modulation (PWM) and signal synchronization.
• Noise Filtering: The precise timing control can be used to filter out noise and ensure clean signal transmission in digital systems.
• Industrial Control Systems: The robust operating temperature range and surface-mount package make it suitable for industrial applications where space is limited and environmental conditions can be challenging.

Conclusion of SN74LS122D

The SN74LS122D is a high-performance monostable multivibrator IC that offers precise timing control and fast signal processing. Its surface-mount package and robust operating characteristics make it an ideal choice for modern digital circuits and industrial applications. With its compliance to environmental and safety standards, the SN74LS122D ensures reliability and longevity in various operating conditions. For engineers and designers looking for a reliable and efficient timing solution, the SN74LS122D from Texas Instruments is a top choice.

SN74LS122D Documents

Download datasheets and manufacturer documentation for SN74LS122D

Datasheets :

SN54/74(LS)122/23/30      

PCN Obsolescence/ EOL :

Mult Dev EOL 30/Aug/2023      

HTML Datasheet :

SN54/74(LS)122/23/30