ON Semiconductor MC74HC251DR2 Multiplexer

The MC74HC251DR2 is a high-performance, 8-input multiplexer from ON Semiconductor, a leading manufacturer in the semiconductor industry. This essential electronic component is designed to select one of the eight data inputs to a single output line, making it an ideal choice for data routing applications where efficiency and reliability are paramount.

Constructed with silicon gate CMOS technology, the MC74HC251DR2 offers a robust and power-efficient solution for digital multiplexing. It boasts a significant advantage in terms of speed and power consumption over traditional multiplexers built with bipolar technology. The device operates over a broad voltage range from 2V to 6V, providing versatility in various application environments and compatibility with TTL levels.

The MC74HC251DR2 features three select inputs (S0, S1, and S2), which determine the data input to be routed to the output. Additionally, it provides an enable input (E) that, when held high, forces the output to a high-impedance state, regardless of the select inputs. This tri-state output feature allows for the possibility to connect multiple devices to a common bus without interference.

The package type for this product is the SOIC-16 (Small Outline Integrated Circuit), which is a surface-mount device, making it suitable for compact and high-density electronic assemblies. The "DR2" suffix in the product name indicates the tape and reel packaging option, which facilitates automated assembly processes and is ideal for large-scale production requirements.

Applications for the MC74HC251DR2 are diverse and include data acquisition systems, communication systems, control systems, and anywhere digital data needs to be efficiently routed and managed. With its high noise immunity and low power dissipation, this multiplexer is also well-suited for battery-operated devices, enhancing their performance and extending battery life.

ON Semiconductor's commitment to quality ensures that the MC74HC251DR2 meets stringent industry standards, providing a reliable and high-quality solution for designers and engineers seeking to incorporate advanced multiplexing capabilities into their projects.