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MM74C928N

MM74C928N Description

The MM74C928N is a 4-digit, 7-segment LED display driver integrated circuit (IC) designed for a wide range of digital display applications. Manufactured by Fairchild Semiconductor (now part of onsemi), this IC is housed in a through-hole package, making it suitable for both prototyping and production environments. The MM74C928N is designed to operate within a supply voltage range of 3V to 6V, ensuring compatibility with various power supply configurations. It features a low supply current of 20 µA, which is ideal for battery-powered and low-power consumption applications.

The MM74C928N is configured to drive 4-digit, 7-segment LED displays using a BCD (Binary-Coded Decimal) interface. This interface simplifies the connection between the driver and microcontrollers or other digital systems, facilitating straightforward implementation. The IC is housed in a tube package, which provides robust mechanical support and ease of handling during assembly processes.

MM74C928N Features

• 4 Digits, 7 Segment Configuration: The MM74C928N is specifically designed to drive 4-digit, 7-segment LED displays, making it ideal for applications requiring clear and concise numerical or character display.
• Low Supply Current: With a supply current of only 20 µA, the MM74C928N is highly efficient and suitable for low-power applications, such as handheld devices and portable electronics.
• Wide Supply Voltage Range: The IC operates within a supply voltage range of 3V to 6V, providing flexibility and compatibility with various power supply systems.
• BCD Interface: The BCD interface simplifies the connection to microcontrollers and other digital systems, reducing the complexity of the overall circuit design.
• Through-Hole Mounting: The through-hole package type ensures robust mechanical support and ease of assembly, making it suitable for both prototyping and production environments.
• Obsolete Product Status: While the MM74C928N is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are required.

MM74C928N Applications

The MM74C928N is well-suited for a variety of applications that require clear and efficient numerical or character display. Some specific use cases include:

• Digital Clocks and Watches: The low power consumption and efficient design make it ideal for battery-powered digital clocks and watches.
• Handheld Devices: Its low supply current and wide voltage range make it suitable for portable electronic devices where power efficiency is critical.
• Industrial Control Panels: The robust through-hole package and compatibility with various power supplies make it a reliable choice for industrial control panels and monitoring systems.
• Consumer Electronics: The MM74C928N can be used in a range of consumer electronics, such as calculators, digital thermometers, and other devices requiring a numeric display.

Conclusion of MM74C928N

The MM74C928N is a versatile and efficient LED display driver IC designed for driving 4-digit, 7-segment displays. Its low supply current, wide voltage range, and BCD interface make it an ideal choice for a variety of applications, particularly in low-power and portable electronic devices. Despite its obsolete status, the MM74C928N remains a reliable solution for legacy systems and applications where its specific features are required. Its robust through-hole package and compatibility with various power supplies ensure ease of assembly and long-term reliability.