DM74AS158N

Overview

The DM74AS158N is a quad multiplexer belonging to the AS (Advance Schottky) logic series. It features four independent 2-line to 1-line data selectors with inverted outputs, housed in a 16-pin plastic dual-in-line package (PDIP). The device operates within a standard TTL voltage range and supports through-hole mounting for industrial applications.

Feature Summary

• Contains four independent 2-to-1 data selectors
• Provides inverted output signals
• Utilizes Advance Schottky process technology

Applications

• Data routing in digital systems
• Signal selection circuits
• Logic interface modules

Procurement Notes

Verify component authenticity as Rochester Electronics sources these parts. Confirm lead-free status and DIP-16 packaging details against original manufacturer specifications. Ensure operating temperature ranges match system requirements before integration.

Selection Notes

Select this component when high-speed switching is required compared to standard LS series. Verify compatibility with existing TTL logic levels. Consider the PDIP-16 form factor for prototyping or legacy board replacements requiring through-hole assembly.

Part Context

This part belongs to the Fairchild Semiconductor DM74AS family, known for improved speed over standard Schottky devices. The DM74AS158N specifically addresses multi-channel signal selection needs in microprocessor and communication systems.

Replacement Considerations

Check for pin-compatible equivalents such as SN74AS158N from Texas Instruments. Verify functional parity regarding inverted outputs and propagation delays before substitution.