SN74HCT574PWR

Flip Flops Overview

The SN74HCT574PWR is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments in the 74HCT logic series. It features eight non-inverting outputs with three-state capability, housed in a 20-TSSOP surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL-compatible input levels. Key electrical specifications include a maximum propagation delay of 47 ns at 5.5 V with 150 pF load, static current consumption of 8 µA, and output drive currents of ±6 mA. It functions reliably across a temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent positive-edge-triggered D-type flip-flops for parallel data storage.
• Three-state outputs enable direct connection to bus systems or multiple loads without external drivers.
• TTL-compatible inputs ensure seamless integration with standard logic families while maintaining low power consumption.

Flip Flops Applications

• Buffer registers for temporary data storage in digital circuits
• I/O ports for interfacing microcontrollers with peripheral devices
• Bidirectional bus drivers for managing data flow on shared communication lines

Flip Flops Procurement Notes

Verify that the ordering suffix 'PWR' corresponds to the TSSOP-20 package and reel packaging format as specified in the official datasheet. Confirm RoHS3 compliance status and check for any recent Product Change Notifications (PCN) regarding assembly or marking changes. Ensure the component meets the required operating temperature range and voltage specifications for the target application environment before finalizing procurement.

Flip Flops Selection Notes

Select this component when designing systems requiring high-density octal storage with bus-compatible outputs. The HCT series offers superior noise immunity compared to standard HC logic while maintaining compatibility with TTL input thresholds. Consider the 47 ns propagation delay and ±6 mA drive strength for timing analysis and load requirements. This part is suitable for applications where moderate speed and robust interface capabilities are prioritized over ultra-high-speed performance.

Flip Flops Part Context

The SN74HCT574 belongs to the widely adopted 74HCT family of CMOS logic devices, bridging the gap between older TTL standards and modern CMOS technology. As an octal flip-flop, it provides a compact solution for storing eight bits of data simultaneously. The PWR suffix indicates a specific tape-and-reel packaging variant designed for automated surface-mount assembly processes, ensuring efficient manufacturing integration.

Flip Flops Replacement Considerations

• SN74HCT574PWRE4
• SN74HCT574PWRG4

Flip Flops FAQ

What is the maximum propagation delay for the SN74HCT574PWR?

The maximum propagation delay is 47 ns when tested at 5.5 V with a 150 pF load.

Does the SN74HCT574PWR support bidirectional data transfer?

No, the SN74HCT574PWR is a unidirectional octal D-type flip-flop. For bidirectional applications, consider the SN74LV8T574 series.