74HCT574PW,118

Overview

The Nexperia 74HCT574PW,118 is an octal D-type flip-flop with 3-state outputs, manufactured by Nexperia USA Inc. It operates within a supply voltage range of 4.5 V to 5.5 V and features push-pull outputs. The component is housed in a TSSOP20 package (SOT360) and supports surface-mount installation. It functions as a latch with positive-edge triggering and includes an output enable input for controlling data flow. The device is designed for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture providing eight independent storage elements
• Positive-edge clock triggering mechanism for precise timing control
• Three-state output capability allowing bus line driving and isolation
• Push-pull output structure ensuring robust signal integrity

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory addressing systems
• General-purpose register applications
• Clocked buffer and driver implementations

Procurement Notes

Verify the specific ordering suffix '118' corresponds to the standard tape and reel packaging configuration required for automated assembly processes. Confirm that the TSSOP20 footprint matches the target PCB design guidelines. Ensure compatibility with 5V logic levels before integration into existing circuit architectures.

Selection Notes

Select this component when an octal storage element with high drive capability is required. The HCT series ensures TTL-compatible input thresholds, simplifying interface with legacy digital systems. The TSSOP20 package offers a compact solution for space-constrained designs while maintaining adequate thermal performance for continuous operation.

Part Context

This part belongs to the widely adopted 74HCT logic family, known for its CMOS technology combined with TTL-compatible inputs. The 74HCT574 variant specifically provides octal storage functionality. The 'PW' designation indicates the TSSOP package type, while ',118' specifies the manufacturer's internal coding for packaging and handling specifications within the Nexperia product portfolio.

FAQ

What is the trigger type for the 74HCT574?

The device utilizes positive-edge triggering, meaning data is latched on the rising edge of the clock signal.

Does the 74HCT574 have active-low or active-high output enable?

The output enable input is typically active-low, allowing the outputs to be placed in a high-impedance state when asserted.