74HCT574PW/AUJ

Overview

The NXP USA Inc. 74HCT574PW/AUJ is an octal D-type flip-flop featuring positive edge triggering and three-state outputs, housed in a TSSOP-20 package. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides non-inverting data paths with an output enable input that controls the high-impedance state without affecting internal logic. It supports a wide operating temperature range from -40 °C to +125 °C, ensuring reliability in demanding environments.

Feature Summary

• Octal D-type flip-flop architecture with positive edge-triggered operation
• Three-state outputs controlled by a dedicated output enable input
• Wide operating temperature range supporting industrial applications

Applications

• Bus-oriented memory register implementations
• Data acquisition systems requiring parallel storage
• Industrial control logic circuits

Procurement Notes

Verify the specific suffix AUJ against official NXP documentation to confirm tape-and-reel packaging configuration and moisture sensitivity level. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability status and lead times prior to finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring eight-bit parallel data storage with bus-compatible tri-state outputs. The HCT logic family ensures TTL compatibility while maintaining CMOS power efficiency. Consider the TSSOP-20 package for surface-mount assembly constraints and verify that the 4.5 V to 5.5 V supply range aligns with the system's power distribution network.

Part Context

This component belongs to the 74HCT574 series of octal D-type flip-flops manufactured by NXP Semiconductors. The series is designed for high-speed digital applications requiring reliable data latching. The PW variant indicates a plastic TSSOP package, while the AUJ suffix typically denotes specific reel packaging or regional distribution specifications defined by the manufacturer.

Replacement Considerations

SN74HCT574PWR (Texas Instruments)

FAQ

How does the output enable input affect the flip-flop operation?

When the output enable input is set to a high logic level, the outputs enter a high-impedance state. This action isolates the outputs from the bus but does not interrupt the internal clocking or data latching processes.

What is the trigger mechanism for the 74HCT574PW/AUJ?

The device utilizes a positive edge-triggered mechanism, meaning data is captured at the inputs and transferred to the outputs on the rising edge of the clock signal.