74F51SCX

Overview

The Fairchild Semiconductor 74F51SCX is a dual AND-OR-Invert gate belonging to the F/FAST logic series. It features two independent functions: one 2-wide 2-input configuration and one 2-wide 3-input configuration. The device utilizes a 14-pin Small Outline Integrated Circuit (SOIC) package with a lead-free finish, conforming to MS-012 standards. It operates within a standard voltage range of 4.5V to 5.5V and supports a maximum operating temperature of 70°C.

Feature Summary

• Dual-function architecture combining distinct 2-input and 3-input AND-OR-Invert logic gates in a single integrated circuit.
• High-speed F/FAST technology designed for applications requiring rapid signal processing and low propagation delay.
• Integrated Output Enable (OE) control mechanism allowing precise management of bus-oriented data transmission.

Applications

• Bus-oriented digital systems requiring controlled data flow
• High-speed logic circuits utilizing AND-OR-Invert functionality
• Digital signal processing architectures

Procurement Notes

Verify that the specific part number suffix matches the required packaging format, as variations exist between tape-and-reel and tube configurations. Confirm compliance requirements against project specifications, noting that certain variants may not be RoHS compliant. Ensure the manufacturer designation aligns with current onsemi holdings following corporate restructuring.

Selection Notes

Select this component when a design requires both 2-input and 3-input AND-OR-Invert logic within a compact surface-mount footprint. The F/FAST series offers superior speed compared to standard TTL equivalents. Verify that the 14-pin SOIC package dimensions fit the available board space and that the operating temperature range meets environmental constraints.

Part Context

This component belongs to the 74F logic family, characterized by high-speed performance comparable to standard TTL but with reduced power consumption. The 74F51 specifically implements complex logic reduction through its AND-OR-Invert structure. The SCX suffix typically denotes a specific manufacturing lot or packaging variation within the broader 74F51 product line.

Replacement Considerations

Direct pin-compatible substitutes include the 74F51SC and 74F51N. Cross-reference datasheets to ensure identical logical truth tables and electrical characteristics before implementation.