DM74S153N

Overview

The DM74S153N is a dual 1-of-4 line data selector/multiplexer manufactured by Fairchild Semiconductor. It integrates two independent multiplexers within a single 16-lead plastic dual-in-line package (PDIP). The device operates with a supply voltage range of 4.75V to 5.25V, ensuring compatibility with standard logic systems. Each multiplexer selects one of four data inputs based on binary address lines and an enable input.

Feature Summary

• Integrates two independent 4-to-1 multiplexing circuits in a single package
• Utilizes Schottky TTL technology for high-speed switching performance
• Features diode-clamped inputs to mitigate transient effects during fast-switching applications

Applications

• Data routing in digital communication systems
• Address decoding in memory architectures
• Signal selection in test and measurement equipment

Procurement Notes

Verify the manufacturer marking matches Fairchild Semiconductor or authorized successors like ON Semiconductor. Confirm the package type is 16-PDIP and the suffix 'N' indicates the specific lead form. Check datasheet revisions for any changes in electrical characteristics or pinout definitions before integration into final designs.

Selection Notes

Select this component when dual independent multiplexing is required within a compact footprint. The Schottky technology offers faster propagation delays compared to standard TTL variants. Ensure the design accommodates the 4.75V to 5.25V operating voltage range and utilizes appropriate pull-up or pull-down resistors if inputs are left floating.

Part Context

This part belongs to the 74S series of high-speed Schottky TTL logic devices. It serves as a functional equivalent to other dual 4-to-1 multiplexers in the industry, such as the 74LS153, though with different speed and power consumption profiles. The DM prefix typically denotes military or enhanced reliability grades in some contexts, but primarily identifies the Fairchild product line.

Replacement Considerations

Compatible substitutes include the SN74S153 from Texas Instruments or the MC74S153 from ON Semiconductor. Verify pin compatibility and electrical specifications, particularly propagation delay times and power dissipation requirements, to ensure seamless replacement without circuit modification.