74167N

Overview

The DM74AS158N is a multiplexer belonging to the AS Series, manufactured by Rochester Electronics. It features four functions, each with two line inputs and one inverted output. The device utilizes TTL logic technology and is housed in a PDIP-16 package with a 0.300-inch width. Key electrical parameters include a maximum operating temperature of 70 °C. The component is lead-free and RoHS compliant, designed for through-hole mounting.

Feature Summary

• Contains four independent multiplexer functions within a single integrated circuit
• Provides inverted outputs for selected input lines
• Constructed using TTL logic technology for standard digital interfacing
• Available in a durable plastic dual in-line package suitable for through-hole applications

Applications

• Digital data routing in logic circuits
• Signal selection in instrumentation systems
• Input multiplexing for microprocessor interfaces
• Data switching in industrial control equipment

Procurement Notes

Verify the specific manufacturer origin, as Rochester Electronics sources components from original manufacturers. Confirm that the PDIP-16 package dimensions match the design footprint. Ensure the TTL logic family compatibility aligns with the system voltage requirements. Check for lead-free compliance if environmental regulations apply. Validate the operating temperature range against the intended application environment.

Selection Notes

Select this component when a quad 2-to-1 multiplexer with inverted outputs is required. Consider the TTL logic family for compatibility with existing digital systems. Evaluate the PDIP-16 package for through-hole assembly needs. Compare performance against other AS series devices if higher speed or different packaging is necessary. Ensure the 70 °C maximum operating temperature meets thermal constraints.

Part Context

This part belongs to the 74AS series of logic integrated circuits, known for advanced Schottky technology. Rochester Electronics supplies these components as surplus or obsolescence solutions. The series offers improved speed over standard 74LS counterparts. The specific model provides compact multiplexing capabilities for digital designs.

Replacement Considerations

Check for direct equivalents such as SN74AS158 or MC74AS158. Verify pinout compatibility before substitution. Ensure logical function matches exactly. Confirm package type alignment for physical replacement.