CY74FCT574TQCT

Overview

The CY74FCT574TQCT is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments. It features eight non-inverting outputs with three-state capability, housed in a 20-pin QSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical parameters include a propagation delay of 10 ns, high-level output current of -32 mA, and low-level output current of 64 mA. It accepts TTL-compatible inputs and is designed for surface-mount installation.

Feature Summary

• Provides eight independent edge-triggered D-type flip-flops for data storage applications
• Features three-state outputs to facilitate direct bus interfacing and system integration
• Accepts TTL-compatible input signals for broad logic family compatibility
• Delivers strong drive capability with specified high and low level output currents

Applications

• Buffer registers in digital systems
• I/O port interface circuits
• Bidirectional bus driver implementations

Procurement Notes

Verify the specific suffix TQCT confirms the QSOP-20 package and reel/cut tape packaging format. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the manufacturer designation matches Texas Instruments or authorized Cypress legacy sources if applicable. Validate that the component meets the required operating temperature range for the intended environment.

Selection Notes

Select this component when an octal register with three-state outputs is required for bus-driven architectures. The FCT series offers faster switching speeds compared to standard HC or HCT logic families. Consider the 20-pin QSOP footprint for space-constrained surface-mount designs. Verify input compatibility with existing TTL logic levels in the design chain.

Part Context

This part belongs to the CY74FCT574T series of octal edge-triggered flip-flops. It is functionally similar to other variants like the CY74FCT574ATQCT but may differ in propagation delay specifications. The device serves as a core building block for synchronous digital logic designs requiring parallel data latching and tri-state control capabilities.

Replacement Considerations

CY74FCT574ATQCT is a documented variant within the same product family offering comparable functionality.