CY74FCT374ATQCT

Overview

The CY74FCT374ATQCT is an octal D-type flip-flop with 3-state outputs manufactured by Texas Instruments. It belongs to the FCT logic series and utilizes a QSOP-20 surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input levels. Key electrical parameters include a propagation delay of 6.5 ns, a high-level output current of -32 mA, and a low-level output current of 64 mA. It functions as a non-inverting register with eight circuits and is rated for operation between -40°C and +85°C.

Feature Summary

• Provides octal data storage via positive-edge-triggered D-type flip-flops
• Features three-state outputs to facilitate bus-oriented memory and communication systems
• Supports live insertion through power-off disable functionality

Applications

• Bus-oriented memory registers
• Communication systems requiring data buffering
• Portable applications utilizing low-voltage CMOS technology

Procurement Notes

Verify the specific suffix 'ATQCT' to confirm the QSOP-20 package and temperature grade. Ensure compatibility with existing PCB footprints for the 0.150-inch wide small outline package. Confirm that the moisture sensitivity level requirements align with assembly timelines. Cross-reference the manufacturer part number against official Texas Instruments documentation to avoid counterfeit components.

Selection Notes

Select this component when an octal register with high drive capability is required. The FCT series offers speed comparable to LS-TTL with lower power consumption. Consider the 64 mA low-level sink current for driving heavy loads on shared buses. Verify that the 4.75 V minimum supply voltage meets system power rail specifications before integration.

Part Context

This part is part of the CY74FCT374T family of octal flip-flops. It serves as a standard solution for digital data storage in microprocessor-based systems. The FCT technology bridges the performance gap between standard CMOS and bipolar logic families. It is widely used in industrial and consumer electronics for reliable data latching.

Replacement Considerations

CY74FCT374TQCT