74AHCT574D,112

Overview

The 74AHCT574D,112 is an octal D-type flip-flop with 3-state outputs manufactured by Nexperia. It belongs to the AHCT logic family, designed for operation with CMOS inputs and TTL-compatible input levels. The device features a positive-edge clock trigger and non-inverting outputs. It is housed in a 20-SOIC surface-mount package. Key electrical specifications include a supply voltage range of 4.5 V to 5.5 V, a maximum propagation delay of 10.6 ns at 5 V with 50 pF load, and output drive currents of ±8 mA. The component supports industrial temperature ranges from -40 °C to +125 °C.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering mechanism
• TTL-compatible input levels ensuring interoperability with standard logic families
• Three-state outputs facilitating bus-oriented applications and system isolation
• Industrial temperature rating supporting wide operational environmental conditions

Applications

• Bus-oriented data storage systems requiring high-speed latching
• Microprocessor interface circuits for address and data registers
• High-speed digital signal processing applications demanding low propagation delay
• System control logic requiring isolated three-state output buffering

Procurement Notes

Verify the specific suffix '112' against official Nexperia documentation to confirm tape-and-reel packaging quantities and shipping configurations. Ensure compatibility with 5V-only power domains due to the AHCT series strict voltage requirements. Confirm lead times and availability status directly with authorized distributors, as production statuses may change without immediate public notice. Validate RoHS compliance and halogen-free status through current datasheets prior to procurement.

Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed CMOS performance. The 74AHCT574D,112 is suitable for designs needing eight bits of storage with independent output enable control. Consider the 20-SOIC package dimensions for PCB layout constraints. Verify that the 4.5 V minimum supply voltage aligns with the system's power rail. Compare against HC or HCT variants if lower voltage operation or different speed characteristics are necessary for the specific application environment.

Part Context

This part is a member of the Nexperia 74AHCT series, which bridges the gap between legacy TTL logic and modern CMOS technology. The 74AHCT574 variant specifically provides octal storage capabilities. The 'D' indicates the SOIC package type, while '112' denotes the specific reel packing configuration. This series is widely used in general-purpose digital electronics where noise immunity and speed are critical factors in system design.

Replacement Considerations

Publicly confirmed substitutes include the 74AHCT574D,118, which shares identical electrical characteristics but utilizes a different packaging quantity designation. Designers should verify pinout compatibility and thermal performance when transitioning between these specific ordering codes.