QS74FCT2374DTQ

Flip Flops Overview

The QS74FCT2374DTQ is an 8-bit D-type flip-flop with 3-state outputs belonging to the FCT logic series. Manufactured by Quality Semiconductor, it operates within a supply voltage range of 4.75V to 5.25V and supports a maximum clock frequency of 140MHz. The device features a propagation delay of 5.2ns at 5V with 50pF load capacitance. It is housed in a 20-lead SSOP package (SSOP20,.25) and functions across a temperature range of -40°C to 85°C.

Flip Flops Feature Summary

• Provides 8-bit data storage with positive-edge triggering for synchronous digital applications.
• Features 3-state outputs allowing direct connection to bidirectional bus architectures.
• Supports high-speed operation with a maximum clock frequency of 140MHz.

Flip Flops Applications

• High-speed parallel data latching in communication systems
• Buffering and registration on bidirectional system buses
• Synchronous state machine implementation in industrial control

Flip Flops Procurement Notes

Verify the specific manufacturer designation as Quality Semiconductor Inc, noting that similar part numbers may originate from IDT or Texas Instruments due to historical acquisitions. Confirm the suffix DTQ corresponds to the SSOP20 package and the extended industrial temperature range (-40°C to 85°C). Ensure compliance requirements match the component's RoHS status, as older batches may differ from current production runs.

Flip Flops Selection Notes

Select this component when designing systems requiring 8-bit synchronous storage with tri-state bus interfacing capabilities. The FCT series offers CMOS compatibility with TTL-level inputs, simplifying interface design between different logic families. Consider the 5.2ns propagation delay and 140MHz clock limit for timing-critical paths. The SSOP20 package is suitable for space-constrained surface-mount applications requiring robust thermal performance.

Flip Flops Part Context

This component belongs to the FCT (Fast CMOS Technology) family, designed to bridge the speed gap between standard CMOS and ECL logic. The 74FCT2374 variant specifically provides registered output functionality. Quality Semiconductor produces this part using advanced CMOS processes optimized for low power consumption while maintaining high switching speeds typical of the FCT architecture.

Flip Flops Replacement Considerations

Direct substitutes include the CY74FCT2374 series from Texas Instruments or IDT. Verify pinout compatibility and electrical specifications such as output drive strength and propagation delay before substitution. Alternative packages like SOIC-20 may require mechanical adaptation.