Texas Instruments

SN74LS221N  

Multivibrators

SN74LS221N Description

The SN74LS221N is a versatile monstable multivibrator from Texas Instruments, designed to meet the demands of modern electronics applications. With its active product status and through-hole mounting type, this device is well-suited for a wide range of applications. The SN74LS221N operates within an extended temperature range of 0°C to 70°C and is compliant with the RoHS3 standard, making it an environmentally friendly choice.

SN74LS221N Features

• Technical Specifications: The SN74LS221N boasts a propagation delay of 45 ns, ensuring fast response times in digital circuits. It features two independent monstable circuits, providing flexibility in design and functionality. The device operates with a supply voltage range of 4.75 V to 5.25 V and offers high and low output currents of 400 µA and 8 mA, respectively.

• Performance Benefits: The SN74LS221N does not have a Schmitt trigger input, which can be advantageous in applications where sharp transitions are required. Its monstable logic type allows for precise timing control, making it ideal for applications such as pulse generation and timing circuits.

• Unique Features and Advantages: This device stands out due to its low power consumption and high reliability, which are critical in battery-powered and mission-critical applications. The SN74LS221N's extended temperature range and moisture sensitivity level (MSL) of "Not Applicable" make it suitable for harsh environments.

SN74LS221N Applications

The SN74LS221N is ideal for various applications, including:

• Pulse Generation: Its monstable logic type makes it perfect for generating precise pulses in digital systems.
• Timing Circuits: The device's ability to create stable timing signals makes it a go-to choice for timing circuits in various electronic devices.
• Automotive Electronics: The extended temperature range and reliability of the SN74LS221N make it suitable for automotive applications where temperature fluctuations are common.
• Industrial Control Systems: The device's high output currents and robust design make it ideal for use in industrial control systems that require stable and reliable timing signals.

Conclusion of SN74LS221N

In conclusion, the SN74LS221N is a high-performance, reliable, and versatile monstable multivibrator that offers a range of benefits for various applications. Its fast propagation delay, low power consumption, and extended temperature range make it an excellent choice for digital circuits, pulse generation, and timing applications. With its active product status and compliance with environmental standards, the SN74LS221N is a smart choice for designers looking to incorporate a robust and efficient multivibrator into their designs.

SN74LS221N Documents

Download datasheets and manufacturer documentation for SN74LS221N

Datasheets :

SN54/74221, SN54/74221      

HTML Datasheet :

SN54/74221, SN54/74221      

PCN Design/Specification :

Material Set 30/Mar/2017