onsemi

MM74C922N

MM74C922N Description

The MM74C922N is an obsolete encoder IC designed by onsemi, specifically tailored for applications requiring efficient key matrix encoding. This Logic IC Chip is part of the 74C series and features a 1 x 8:4 encoding circuit. It operates on a single supply voltage ranging from 3V to 15V, making it versatile for various power supply configurations. The MM74C922N is housed in a through-hole package, which is ideal for applications where robust mechanical stability and ease of installation are required. The IC is available in a tube package, ensuring safe and convenient handling during assembly processes.

MM74C922N Features

• Encoding Capability: The MM74C922N is designed to encode a 16-key matrix into a 4-bit binary code providing, an efficient solution for key input systems.
• Single Supply Operation: With a supply voltage range of 3V to 15V, the MM74C922N offers flexibility in power supply options, making it suitable for a wide range of applications.
• High Output Current: The IC supports output currents of 15mA for high levels and 16mA for low levels, ensuring robust performance even under demanding conditions.
• Independent Circuit: The MM74C922N features one independent circuit, simplifying design integration and reducing the complexity of the overall system.
• Moisture Sensitivity Level (MSL): The MSL rating of 1 (Unlimited) indicates that the MM74C922N is highly resistant to moisture, enhancing its reliability in various environmental conditions.
• Compliance: The MM74C922N is REACH unaffected, ensuring compliance with environmental and safety regulations, which is crucial for global market acceptance.
• ECCN Classification: The Export Control Classification Number (ECCN) of EAR99 indicates that the MM74C922N is not subject to specific export controls, facilitating international trade.

MM74C922N Applications

The MM74C922N is particularly well-suited for applications that require efficient key matrix encoding, such as:

• Keyboards and Keypads: Ideal for encoding key inputs in computer keyboards, calculators, and other devices requiring a 16-key matrix.
• Control Panels: Suitable for industrial control panels where multiple key inputs need to be efficiently encoded and processed.
• Consumer Electronics: Applicable in various consumer electronics where compact and reliable key encoding is necessary.
• Telecommunication Equipment: Useful in telecommunication devices that require robust key input systems.

Conclusion of MM74C922N

The MM74C922N, despite being an obsolete product, remains a reliable and efficient encoder IC for applications requiring a 16-key matrix. Its versatile single supply operation, high output current, and robust mechanical stability make it a valuable component for various electronic systems. The IC's compliance with environmental regulations and its moisture resistance further enhance its reliability and suitability for diverse applications. While newer alternatives may offer additional features, the MM74C922N continues to provide a cost-effective and reliable solution for key matrix encoding needs.