74FCT574ATLB

Overview

The 74FCT574ATLB is an octal D-type flip-flop manufactured by Renesas Electronics Corporation, designed for high-speed data storage and transfer applications. It features positive-edge triggering and tri-state outputs to facilitate bus-oriented memory operations. The device operates within a supply voltage range of 4.5V to 5.5V and supports surface mount packaging in a 20-LCC format. Key electrical characteristics include a quiescent current of 1.5 mA and an input capacitance of 6 pF. It is rated for operation across a temperature range of 0°C to 70°C (TA), ensuring reliable performance in standard commercial environments.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge clock triggering for efficient data latching
• Tri-state output configuration enabling direct connection to system buses without external drivers
• Low input capacitance design supporting high-speed signal integrity and reduced loading effects

Applications

• Bus-oriented memory register implementations
• High-speed data acquisition systems requiring parallel storage
• Industrial control logic interfacing

Procurement Notes

Verify the specific package variant and temperature grade against project requirements before ordering. Confirm that the 0°C to 70°C operating range aligns with environmental conditions. Check for any recent product change notices or lifecycle status updates from the manufacturer to ensure long-term availability and compatibility with existing designs.

Selection Notes

Select this component when an octal D-type flip-flop with tri-state outputs is required for bus-based architectures. Ensure the 4.5V to 5.5V supply voltage matches the system power rails. Consider the 20-LCC surface mount package for PCB layout constraints. Verify that the 1.5 mA quiescent current and 6 pF input capacitance meet the power and speed specifications of the application.

Part Context

The 74FCT574ATLB belongs to the FCT logic family, known for CMOS-compatible inputs and TTL-compatible outputs. This series is widely used in digital systems requiring fast propagation delays and low power consumption. The device serves as a fundamental building block for sequential logic circuits, providing stable data retention and precise timing control in microprocessor-based systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.