74HCT534N,652

Overview

The NXP USA Inc. 74HCT534N,652 is an octal D-type flip-flop with three-state outputs belonging to the HCT logic family. It features rising-edge triggering and non-inverting polarity. The component utilizes a 20-pin PDIP through-hole package containing eight independent circuits. Electrical specifications include a maximum propagation delay of 32 ns at 4.5 V with 50 pF load capacitance. Operating conditions support a supply voltage range of 4.5 V to 5.5 V and a temperature range from -40 °C to +125 °C.

Feature Summary

• Octal D-type flip-flop architecture providing eight independent data storage elements within a single integrated circuit.
• Three-state output capability allowing direct connection to bus systems without external buffer drivers.
• Rising-edge clock triggering mechanism ensures precise data capture synchronized with signal transitions.
• CMOS technology integration enables compatibility with standard TTL logic levels while maintaining low power consumption.

Applications

• Parallel-to-serial data conversion in communication interfaces
• General-purpose register storage for temporary data holding
• Bus interface buffering for microprocessor systems
• Digital signal processing pipeline stages

Procurement Notes

Verify the specific manufacturer designation, as Nexperia holds rights to certain 74HCT part numbers previously associated with NXP. Confirm that the ordering suffix matches the required package type and lead-free status. Ensure the source document explicitly identifies NXP USA Inc. as the current manufacturer for this specific part number to avoid confusion with legacy Philips or Nexperia designations.

Selection Notes

Select this component when an octal storage element with high-speed tri-state outputs is required for 5V logic systems. The HCT series ensures full compatibility with standard TTL inputs. Consider the PDIP package constraints for through-hole assembly requirements. Verify that the operating temperature range meets the environmental demands of the target application before finalizing the selection.

Part Context

This component belongs to the widely adopted 74HCT logic family, designed for high-speed CMOS applications compatible with TTL voltages. The octal flip-flop configuration serves as a fundamental building block for sequential logic circuits. Its standardized pinout facilitates easy integration into existing digital designs requiring multiple parallel data registers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other manufacturers offering equivalent octal D-type flip-flops with three-state outputs if sourcing from alternative suppliers is necessary.