M74HCT574RM13TR

Flip Flops Overview

The M74HCT574RM13TR is an octal D-type flip-flop manufactured by STMicroelectronics, belonging to the 74HCT logic series. It features eight positive-edge-triggered D-type flip-flops with three-state outputs in a 20-SOIC package. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 33 MHz. Key electrical parameters include a typical propagation delay of 30ns at 5V with 50pF load, static current of 8µA, and symmetrical output drive capability of 7.2mA. It functions as a standard octal D flip-flop with non-inverting outputs.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering
• Three-state outputs for bus-oriented applications
• CMOS technology compatible with TTL input levels
• Surface-mount packaging for automated assembly

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Buffering digital signals on microprocessor buses
• General-purpose storage elements in control logic
• Register arrays for temporary data holding

Flip Flops Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part number matches the required HCT logic family specifications rather than HC variants. Check for RoHS compliance documentation and ensure the package type aligns with PCB footprint requirements. Validate lead times and availability status as production status may vary.

Flip Flops Selection Notes

Select this component when TTL-compatible input thresholds are required alongside CMOS low power consumption. Ensure the operating voltage range of 4.5V to 5.5V matches the system power supply. Consider the 30ns propagation delay for timing constraints. Verify that the 20-SOIC package dimensions fit the design layout. Compare against HC series if higher speed or wider voltage range is needed.

Flip Flops Part Context

This component is part of the 74HCT series of high-speed CMOS logic devices produced by STMicroelectronics. The 74HCT series bridges the gap between older TTL logic families and modern CMOS technologies by providing TTL-compatible input voltages while maintaining CMOS noise immunity and power efficiency. It serves as a standard solution for digital logic interfacing in embedded systems.

Flip Flops Replacement Considerations

Direct substitutes include MM74HCT574MTCX from onsemi. Cross-reference pinouts and electrical characteristics before substitution. Verify package compatibility and thermal performance. Ensure functional equivalence regarding trigger edge and output state behavior.