74LVQ74SCX

Overview

The Fairchild Semiconductor 74LVQ74SCX is a dual D-type positive edge-triggered flip-flop housed in a 14-SOIC package. It operates within a supply voltage range of 2V to 3.6V, supporting a maximum clock frequency of 125 MHz. The device features asynchronous clear and set inputs with complementary Q and Q outputs. Output drive capability is specified at 12mA for both high and low states. It functions across an operating temperature range of -40°C to 85°C.

Feature Summary

• Dual D-type flip-flop architecture with positive edge triggering
• Asynchronous clear and set control inputs
• Complementary output configuration

Applications

• Parallel data storage circuits
• Shift register implementations
• Timing and synchronization logic

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Procurement requires verification of availability through authorized distributors or secondary market suppliers. Buyers must confirm part authenticity and physical condition prior to purchase, as standard manufacturing support has ceased. Supply chain stability cannot be guaranteed through original channels.

Selection Notes

Engineers should evaluate the 125 MHz maximum clock frequency and 2V-3.6V supply range against system requirements. The 14-SOIC package dimensions must fit the target PCB layout. As the part is obsolete, alternative solutions within the same logic family or newer generations should be considered for long-term production designs.

Part Context

The 74LVQ74SCX belongs to the LVQ series of low-voltage logic devices from Fairchild Semiconductor. This series targets applications requiring operation below standard 5V levels while maintaining compatibility with traditional logic interfaces. The specific model provides dual flip-flop functionality in a compact surface-mount package.

Replacement Considerations

Direct substitutes include MC74LVX74MG from onsemi. Designers should verify pinout compatibility and electrical specifications before swapping components.