74F398SCX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74F398SCX is a high-speed logic component belonging to the F/FAST Series TTL family. It integrates a quad 2-input multiplexer with four edge-triggered D flip-flops in a single package. The device operates on a single supply voltage and features standard output types. Designed for surface mount applications, it utilizes a 20-SOIC package. The component supports an operating temperature range of 0°C to 70°C and carries an ECCN classification of EAR99.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-to-1 multiplexers directly coupled to edge-triggered D flip-flops
• Constructed using F/FAST Series TTL technology for high-speed performance
• Supports surface mount installation in a compact 20-SOIC package

Signal Switches, Multiplexers, Decoders Applications

• Data routing and selection circuits requiring synchronized storage
• Digital signal processing systems utilizing fast TTL logic levels
• Industrial control interfaces needing multiplexed input handling

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or its successor entities when sourcing this component. Confirm the specific suffix 'SCX' corresponds to the required 20-SOIC surface mount package variant. Ensure compatibility with standard TTL voltage levels and check that the operating temperature range meets your environmental requirements before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a design requires both multiplexing functionality and immediate data latching within a single integrated circuit. The F/FAST series offers faster switching speeds compared to standard 74LS equivalents. Consider the 20-SOIC footprint for PCB layout constraints and verify that the single-supply operation aligns with the system's power distribution architecture.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the widely used 74F logic family, known for improved speed over earlier transistor-transistor logic standards. The 74F398 specifically addresses applications where data selection and temporary storage must occur simultaneously without external buffering components. It serves as a logical equivalent to discrete multiplexer and flip-flop combinations, simplifying circuit design.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74F399 is noted as a logical equivalent within the same family. Verify pinout compatibility and electrical specifications against alternative sources if direct substitution is necessary.