onsemi

MM74HC423AN

MM74HC423AN Description

The MM74HC423AN is a monostable multivibrator logic IC chip designed by onsemi, belonging to the 74HC series. This through-hole mounted component features a propagation delay of 22 ns, making it suitable for high-speed applications. It operates within a supply voltage range of 2 V to 6 V and provides a current output of 5.2 mA for both high and low states. The MM74HC423AN includes two independent circuits, each with Schmitt trigger inputs, enhancing its noise immunity and signal integrity. Packaged in a tube, this IC is classified under HTSUS code 8542.39.0001 and is REACH unaffected. Despite its obsolescence, the MM74HC423AN remains a reliable choice for specific applications requiring dual monostable multivibrators.

MM74HC423AN Features

• Monostable Multivibrator Logic: The MM74HC423AN is designed as a monostable multivibrator, providing a single output pulse in response to a trigger input. This feature is essential for applications requiring precise timing and pulse generation.
• Low Propagation Delay: With a propagation delay of 22 ns, the MM74HC423AN ensures fast signal processing, making it suitable for high-speed digital circuits.
• Dual Independent Circuits: The inclusion of two independent monostable circuits allows for simultaneous operation of two separate timing functions, enhancing the flexibility and efficiency of the IC.
• Schmitt Trigger Input: The Schmitt trigger input provides excellent noise immunity, ensuring stable operation even in noisy environments. This feature is particularly beneficial in applications where input signals may be subject to noise or fluctuations.
• Wide Operating Voltage Range: The IC operates within a supply voltage range of 2 V to 6 V, offering compatibility with various power supply configurations.
• High Current Output: The MM74HC423AN can source and sink up to 5.2 mA, making it capable of driving multiple loads or interfacing with other digital circuits.
• Through-Hole Mounting: The through-hole package type ensures robust mechanical stability and ease of installation on printed circuit boards.
• REACH Unaffected: Compliance with REACH regulations ensures that the MM74HC423AN is free from harmful substances, making it suitable for use in environmentally conscious applications.

MM74HC423AN Applications

The MM74HC423AN is ideal for applications requiring precise timing and pulse generation. Some specific use cases include:

• Digital Timing Circuits: The monostable multivibrator function is perfect for generating precise timing intervals, making it suitable for digital clocks, counters, and timing circuits.
• Pulse Generation: The IC can generate single pulses in response to trigger inputs, which is useful in applications such as digital signal processing, communication systems, and control circuits.
• Noise Immune Signal Processing: The Schmitt trigger input ensures stable operation in noisy environments, making the MM74HC423AN suitable for industrial control systems and automotive electronics.
• Dual Timing Functions: With two independent monostable circuits, the IC can handle multiple timing tasks simultaneously, enhancing its versatility in complex digital systems.

Conclusion of MM74HC423AN

The MM74HC423AN is a versatile monostable multivibrator IC with a low propagation delay and dual independent circuits. Its Schmitt trigger input and wide operating voltage range make it suitable for a variety of applications requiring precise timing and pulse generation. Despite being obsolete, the MM74HC423AN remains a reliable choice for specific applications where its unique features and performance benefits are required. Its compliance with REACH regulations and robust through-hole mounting further enhance its suitability for industrial and automotive applications.