74F51SC

Overview

The Fairchild Semiconductor 74F51SC is a dual AND-OR-Invert gate belonging to the F/FAST logic series. It integrates two independent logic functions within a single package: one 2-wide 2-input AND-OR-Invert gate and one 2-wide 3-input AND-OR-Invert gate. The device utilizes a 14-pin Small Outline Integrated Circuit (SOIC) package with a plastic/epoxy body. It operates at a maximum supply voltage of 5V, supports a maximum output current of 0.02 A, and functions within an operating temperature range up to 70 °C.

Feature Summary

• Combines two distinct logic structures in one package for space-efficient designs
• Provides high-speed switching capabilities characteristic of the F/FAST series
• Features asymmetrical input/output characteristics for specific signal processing needs

Applications

• Digital logic circuits requiring combined AND-OR-Inversion functions
• High-speed data processing systems utilizing F/FAST logic families
• Embedded control units needing compact gate implementations

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm package type matches SOIC-14 specifications. Ensure compliance with required environmental standards as the part may not be RoHS compliant. Validate supplier documentation for accuracy regarding the F/FAST series designation and pinout configuration before integration into production.

Selection Notes

Select this component when a design requires both 2-input and 3-input AND-OR-Invert logic functions simultaneously. Consider the F/FAST series speed advantages over standard TTL variants. Evaluate the 14-pin SOIC footprint against available board space. Verify that the 0.02 A output drive capability meets the load requirements of the connected circuitry.

Part Context

This component belongs to the Fairchild 74F series, known for high-speed performance compared to earlier logic families. The 74F51 specifically addresses applications needing complex combinational logic without consuming multiple IC footprints. Its placement within the F/FAST lineup indicates optimized propagation delays suitable for faster digital systems.

Replacement Considerations

Check for direct equivalents from other manufacturers offering identical pinouts and logical functions. Verify compatibility with existing PCB layouts when substituting. Ensure replacement parts maintain similar electrical characteristics and package dimensions.