ON Semiconductor DM74LS251N Data Selector/Multiplexer

The DM74LS251N from ON Semiconductor is a high-performance data selector/multiplexer that stands out for its exceptional utility in digital systems. This device is an integral component for applications requiring the selection or multiplexing of data from multiple sources to a single output line. The DM74LS251N is part of the 74LS family, which is known for its low-power Schottky technology, ensuring reduced power consumption and minimized heat generation.

This 8-input multiplexer features three binary control inputs, labeled as C, B, and A, which determine the data input to be connected to the output. The input-output isolation is maintained by an inhibit input, ensuring that when activated, all outputs are disconnected from the inputs. The multiplexer's output can present the selected data in both true (non-inverting) and complement (inverting) forms, offering flexibility in interfacing with subsequent logic circuits.

The DM74LS251N is housed in a standard 16-pin DIP (Dual In-line Package), making it compatible with breadboards, sockets, and standard PCB layouts. This packaging is ideal for prototyping, educational environments, and industrial applications where ease of installation is a necessity.

Key features of the DM74LS251N include:

• Typical power dissipation of 150 mW, promoting energy efficiency in your designs.
• A high fan-out of 15 LS-TTL loads, ensuring compatibility with multiple outputs without the need for additional buffering.
• The capability to operate within a wide voltage range of 4.75V to 5.25V, providing stable operation in systems with standard TTL supply levels.
• Switching characteristics designed for 100% testing for quiescent current at 20V, offering reliability and consistent performance.

With its robust design and dependable performance, the DM74LS251N is suitable for a wide array of digital applications, including data routing, signal gating, and control logic. Its proven technology is trusted by engineers and designers in various industries such as automation, telecommunications, and computing. Whether you're building complex data systems or working on a simple project, the DM74LS251N offers a practical solution for your multiplexing needs.