74F399SJX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74F399SJX is a quad 2-input multiplexer integrated circuit featuring four edge-triggered D flip-flops. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to 70°C. The device provides output currents of 1mA (High) and 20mA (Low). Packaged in a 16-SOP format, it serves as the logical equivalent for applications requiring simultaneous signal selection and storage.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-to-1 multiplexers with dedicated edge-triggered D flip-flops for data latching.

Signal Switches, Multiplexers, Decoders Applications

• Data acquisition systems requiring synchronized signal routing and storage
• Digital logic circuits needing parallel input selection and registration
• Communication interfaces utilizing multiplexed data paths

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer marking matches Fairchild Semiconductor or its authorized successors such as onsemi. Confirm the package type is 16-SOP and the suffix 'X' indicates tape-and-reel packaging if applicable. Ensure the component meets the specified 4.5V to 5.5V supply requirements and 0°C to 70°C operating temperature range for your specific application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a design requires both multiplexing functionality and data storage in a single package. It is suitable for CMOS logic families operating at standard 5V levels. Consider the 16-SOP package constraints for PCB layout and thermal management within the specified industrial temperature range.

Signal Switches, Multiplexers, Decoders Part Context

The 74F399 belongs to the 74F series of high-speed CMOS logic devices. It functions as a combination of a quad 2:1 multiplexer and a quad D flip-flop, providing logical equivalence for complex digital switching and timing applications. The SJX suffix typically denotes the specific package and reel configuration for surface-mount assembly.

Signal Switches, Multiplexers, Decoders FAQ

What is the logical function of the 74F399SJX?

It combines a quad 2-input multiplexer with four edge-triggered D flip-flops, allowing for signal selection followed by data storage.

What is the valid supply voltage range?

The device operates correctly with a supply voltage between 4.5V and 5.5V.