SN74H51N

Overview

The SN74H51N is a TTL logic AND-OR-Invert gate manufactured by Texas Instruments. It belongs to the 74H (High-speed TTL) series and contains two independent functions within a single package. Each function accepts four inputs, allowing for complex logic combinations in digital circuits. The device utilizes a standard 14-pin Dual In-line Package (PDIP) suitable for through-hole mounting on printed circuit boards. It operates with a standard 5V supply voltage typical of TTL logic families.

Feature Summary

• Implements AND-OR-Invert logic functionality
• Contains two independent logic functions
• Supports four inputs per function

Applications

• Digital logic circuit design
• TTL-based system integration
• General-purpose logic gating

Procurement Notes

Verify the manufacturer marking matches Texas Instruments specifications. Confirm the package type is PDIP-14 and the logic family is High-speed TTL. Ensure the component meets required operating temperature ranges for your specific application environment before finalizing procurement.

Selection Notes

Select this component when high-speed TTL performance is required for AND-OR-Invert operations. It serves as a direct replacement for other 74H51 variants from different manufacturers provided pinouts and electrical characteristics align. Consider the PDIP package constraints if surface-mount technology is preferred.

Part Context

This part is part of the extensive 74-series logic family, specifically the High-speed TTL subset. It provides a standardized interface for designers needing combinational logic gates. The 74H series offers faster switching speeds compared to standard 74LS or 74S equivalents while maintaining compatible logic levels.