TC74VHC574FK(EL,K)

Overview

The TC74VHC574FK(EL,K) is an octal D-type flip-flop from Toshiba’s VHC logic series, housed in a 20-VFSOP package. It features three-state outputs and operates on a single clock input. The device supports a supply voltage range of 2.0 to 5.5 volts. At 5 V, it exhibits a propagation delay of 5.6 ns with maximum clock frequencies up to 180 MHz. Output drive capabilities include 8 mA sourcing and sinking currents. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering
• Three-state output configuration for bus-oriented systems
• High-speed operation with low propagation delay
• Wide operating voltage range supporting 2.0 V to 5.5 V

Applications

• Parallel-to-serial data conversion circuits
• Buffering and register applications in digital systems
• Timing delay elements in high-speed logic designs
• Data storage modules in communication interfaces

Procurement Notes

Verify the specific suffix (EL,K) against the manufacturer's current datasheet to confirm tape-and-reel specifications and RoHS compliance status. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the manufacturer code with official Toshiba Semiconductor and Storage documentation to avoid counterfeit components.

Selection Notes

Select this component when an octal D-type flip-flop with three-state outputs is required for high-speed data handling. The VHC series offers compatibility with standard CMOS logic levels while providing improved speed over older families. Consider the 20-VFSOP package dimensions for space-constrained designs. Verify that the 2.0 V minimum supply voltage aligns with your system's power rails.

Part Context

This part belongs to Toshiba’s 74VHC series of high-speed CMOS logic devices. The series is designed for general-purpose applications requiring fast switching speeds and low power consumption. The TC74VHC574FK variant specifically provides eight independent D-type flip-flops in a compact surface-mount package, suitable for complex digital logic implementations.

Replacement Considerations

The TC74VHC574FT is a documented alternative part number for this component family. Verify pinout compatibility and electrical parameters before substitution. Other equivalent octal D-type flip-flops from different manufacturers may require level-shifting or voltage adjustment.