STMicroelectronics

M74HC251B1R  

Encoders, Decoders, Multiplexers & Demultiplexers

M74HC251B1R Description

The M74HC251B1R is a high-performance multiplexer IC designed by STMicroelectronics, featuring a 1 x 8:1 channel configuration. This obsolete component is part of the 74HC series, known for its robust performance and reliability in various electronic applications. The M74HC251B1R operates on a single supply voltage ranging from 2V to 6V, making it versatile for different power supply requirements. It is packaged in a through-hole 16DIP format, which ensures secure and durable mounting on printed circuit boards.

M74HC251B1R Features

• Circuit Configuration: The M74HC251B1R features a 1 x 8:1 multiplexer circuit, allowing for the selection of one of eight input channels to be routed to a single output. This configuration is ideal for applications requiring efficient signal routing and control.
• Single Supply Operation: The IC operates on a single supply voltage between 2V and 6V, providing flexibility in power supply design and ensuring compatibility with a wide range of systems.
• High Current Capability: With an output current capability of 5.2mA for both high and low states, the M74HC251B1R can drive various loads effectively, enhancing its versatility in different applications.
• Through-Hole Mounting: The through-hole package ensures robust mechanical stability and ease of integration into existing PCB designs, making it suitable for both prototyping and production environments.
• Compliance and Safety: The M74HC251B1R is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating it is not sensitive to moisture, which is beneficial for long-term storage and reliability.

M74HC251B1R Applications

The M74HC251B1R is well-suited for a variety of applications where efficient signal routing and control are essential. Some specific use cases include:

• Data Acquisition Systems: The multiplexer can be used to select and route signals from multiple sensors to a single processing unit, optimizing data collection and analysis.
• Communication Systems: In communication systems, the M74HC251B1R can manage signal routing between different communication channels, ensuring seamless data transmission.
• Automotive Electronics: The robustness and reliability of the M74HC251B1R make it suitable for automotive applications, where it can handle signal routing in various electronic control units.
• Industrial Control Systems: The IC can be integrated into industrial control systems to manage and route signals from multiple sensors and actuators, enhancing system efficiency and control.

Conclusion of M74HC251B1R

The M74HC251B1R is a versatile and reliable multiplexer IC from STMicroelectronics, offering a 1 x 8:1 channel configuration with a wide operating voltage range. Its high current capability, through-hole mounting, and compliance with environmental and safety standards make it a robust choice for various applications. While it is now considered obsolete, the M74HC251B1R remains a valuable component for existing systems and legacy designs, ensuring continued performance and reliability in signal routing and control applications.

M74HC251B1R Documents

Download datasheets and manufacturer documentation for M74HC251B1R