74HC574PW/AUJ

Overview

The NXP USA Inc. 74HC574PW/AUJ is an octal D-type flip-flop belonging to the HC logic family, housed in a TSSOP-20 package. It features positive edge-triggered data storage with three-state outputs and non-inverting polarity. The device operates within a supply voltage range of 2 V to 6 V and supports a maximum propagation delay of 14 ns at 5 V. It provides high-level output current of -7.8 mA and low-level output current of 7.8 mA. The component functions as a single circuit with eight input and eight output lines, suitable for surface-mount installation across industrial temperature ranges.

Feature Summary

• Octal D-type flip-flop architecture with positive edge-triggered clocking mechanism
• Three-state outputs allowing direct interfacing with bus structures
• Non-inverting signal polarity for straightforward data path integration

Applications

• Parallel-to-serial data conversion circuits
• Bus interface buffering for microprocessor systems
• Register file implementation in digital logic designs

Procurement Notes

Verify the specific suffix AUJ against official NXP documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level requirements. Ensure compatibility with existing PCB footprint dimensions and reflow soldering profiles before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring octal storage with bus-compatible three-state outputs. Verify that the operating voltage range aligns with the system power rails and that the propagation delay meets timing constraints for the target clock frequency.

Part Context

This part belongs to the widely adopted 74HC series of CMOS logic devices, known for compatibility with standard TTL and CMOS loads. The HC574 variant specifically provides octal storage capabilities, serving as a fundamental building block for sequential logic applications in consumer and industrial electronics.

Replacement Considerations

Cross-reference with Nexperia 74HC574PW,118 or ON Semiconductor 74HC574 for functional equivalents. Confirm pinout compatibility and electrical parameter alignment before substituting.