74HC574DB,118

Overview

The Nexperia 74HC574DB,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 2V to 6V and features a surface-mount 20-SSOP package (5.30mm width). The device supports a maximum clock frequency of 90 MHz and includes an active-low clear input. Key electrical parameters include a propagation delay of 32ns at 6V with 150pF load, output currents of 7.8mA for both high and low states, and a static current of 4µA. It functions across a temperature range of -55°C to 125°C.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering
• Three-state outputs providing bus-oriented control capabilities
• Active-low asynchronous clear input for immediate data reset
• Wide operating voltage range supporting diverse logic families

Applications

• Parallel-to-serial data conversion circuits
• Bus-driven register storage applications
• High-speed digital signal processing interfaces
• General-purpose memory buffering in embedded systems

Procurement Notes

Verify the specific suffix '118' against official Nexperia documentation to confirm tape-and-reel packaging specifications. Ensure the SSOP package dimensions match the target PCB footprint requirements. Confirm RoHS compliance status and moisture sensitivity level ratings prior to integration into production workflows.

Selection Notes

Select this component when an octal latch or flip-flop with tri-state outputs is required for bus management. The HC series offers standard CMOS performance suitable for general-purpose logic. Verify that the 2V to 6V supply range aligns with the system power rails and that the 90 MHz speed meets the application timing constraints.

Part Context

This part belongs to the 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits. The device provides eight independent D-type flip-flops in a single package, offering space efficiency compared to discrete solutions. It is designed for compatibility with standard TTL logic levels while maintaining low power consumption characteristics typical of CMOS technology.

Replacement Considerations

Direct substitutes include CD74HC574M96 from Texas Instruments and MC74HC574ADWG from onsemi. These alternatives share similar pinouts and functional specifications but may differ in package variants or specific electrical tolerances. Verify cross-manufacturer datasheets for parameter alignment before substitution.