DM74S158N

Overview

The DM74S158N is a Schottky TTL quad multiplexer housed in a 16-lead Plastic Dual-In-Line Package (PDIP). It contains four independent 2-line to 1-line data selectors with inverted outputs. The device features buffered inputs and outputs, ensuring full on-chip data selection capability. It operates within a standard temperature range up to 70 °C and utilizes the Advanced Schottky process for improved switching performance compared to standard TTL counterparts.

Feature Summary

• Contains four independent 2-line to 1-line data selectors
• Provides inverted output signals for each selector function
• Utilizes buffered inputs and outputs for signal integrity
• Employs Schottky TTL technology for enhanced speed

Applications

• Data routing in digital logic systems
• Signal selection in microprocessor interfaces
• Multiplexing applications requiring high-speed switching

Procurement Notes

Verify the specific manufacturer source, as Rochester Electronics often supplies components originally designed by Fairchild Semiconductor. Confirm that the PDIP-16 package matches the required footprint and pin configuration. Ensure the component meets the necessary RoHS compliance standards if required by the final assembly specifications.

Selection Notes

Select this component when a quad multiplexer with inverted outputs is required in a DIP package. It serves as a functional alternative to the DM74LS158 but offers faster switching speeds due to the Schottky process. Consider the 70 °C maximum operating temperature limit during system thermal design.

Part Context

This part belongs to the 74S series of Schottky TTL logic devices. It is functionally related to the DM74LS158 but provides superior AC performance. The device is commonly used in legacy digital designs requiring robust multiplexing capabilities within a standard dual-in-line form factor.