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MM74HC221AN

MM74HC221AN Description

The MM74HC221AN is a monostable multivibrator IC designed for a wide range of timing and pulse generation applications. Manufactured by onsemi, this device is part of the 74HC series, known for its high-speed CMOS technology. The MM74HC221AN features a propagation delay of 22 ns, ensuring precise timing control. It operates within a supply voltage range of 2 V to 6 V, making it suitable for various power supply configurations. The device includes two independent monostable circuits, providing flexibility in circuit design. With Schmitt trigger inputs, the MM74HC221AN offers noise immunity and stable performance in varying input conditions. Packaged in a through-hole 16DIP format, it is ideal for applications requiring robust mechanical stability and ease of installation. Although the product is now obsolete, its unique features and performance benefits continue to make it a valuable component for specific legacy systems.

MM74HC221AN Features

• Propagation Delay: 22 ns, ensuring fast and accurate signal processing.
• Logic Type: Monostable, ideal for generating single pulses in response to trigger signals.
• ECCN: EAR99, indicating compliance with export regulations.
• Independent Circuits: Two independent monostable circuits, providing versatile timing solutions.
• Mounting Type: Through Hole, offering mechanical stability and ease of integration.
• Product Status: Obsolete, but still suitable for existing systems and specific applications.
• Schmitt Trigger Input: Yes, enhancing noise immunity and stable performance.
• Series: 74HC, known for high-speed CMOS technology.
• Voltage - Supply: 2 V to 6 V, compatible with a wide range of power supplies.
• REACH Status: REACH Unaffected, ensuring compliance with chemical safety regulations.
• Mfr: onsemi, a leading manufacturer in the semiconductor industry.
• HTSUS: 8542.39.0001, facilitating accurate customs classification.
• Package: Tube, ensuring safe storage and handling.
• Base Product Number: 74HC221, part of a well-established product family.
• Current - Output High, Low: 5.2mA, 5.2mA, providing robust output capabilities.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), suitable for storage in various environments.

MM74HC221AN Applications

The MM74HC221AN is particularly well-suited for applications requiring precise timing and pulse generation. Its monostable operation makes it ideal for:

• Timing Circuits: Generating single pulses for timing control in digital systems.
• Pulse Generation: Creating stable pulses in response to trigger signals.
• Noise Filtering: Utilizing Schmitt trigger inputs to filter out noise and ensure stable performance.
• Legacy Systems: Maintaining compatibility with older systems where this component is already in use.
• Industrial Control: Providing reliable timing solutions in harsh industrial environments.
• Telecommunications: Ensuring accurate timing in communication systems and signal processing.

Conclusion of MM74HC221AN

The MM74HC221AN, despite being obsolete, remains a valuable component for specific applications due to its unique features and performance benefits. Its fast propagation delay, Schmitt trigger inputs, and versatile supply voltage range make it an excellent choice for precise timing and pulse generation tasks. The device's robust through-hole packaging and compliance with industry regulations further enhance its appeal. While newer alternatives may exist, the MM74HC221AN continues to serve as a reliable solution for legacy systems and specialized applications, ensuring continued relevance in the electronics industry.